International Trucks Fault Codes List (DTCs) for Model: 3200, 4100, 4300, 4400, 7300, 7400, 7500, 7600, 7700, 8500, 8600,
BE 200, CE Bus, CXT, DuraStar, LoneStar, MXT, ProStar, RXT, TranStar, WorkStar

International 8600

Fault codes in PDF

International 3200, 4100, 4300, 4400, 7300, 7400, 7500, 7600, 7700, 8500, 8600 fault code list (PDF) – download

DISPLAYING DIAGNOSTIC TROUBLE CODES

The ability to display diagnostic trouble codes (DTC) is an optional feature. Codes may be displayed on either the gauge cluster or an optional vehicle information display (VID). The vehicle must be equipped with the option to display codes in both cases. Codes will not be displayed on the gauge cluster if the vehicle is equipped with the VID.

VEHICLES EQUIPPED WITH OPTION TO DISPLAY CODES

Displaying Codes on the Gauge Cluster (Non-VID equipped vehicles)

To display codes on vehicles not equipped with a VID:

Set the parking brake.
Turn the key switch to the ACCESSORY position to view only previously active codes. Turn the key switch to the IGNITION position to view both active and previously active codes.
Momentarily press the Cruise “ON” switch and the Cruise “Resume” switch at the same time.

A gauge sweep will be performed on the gauges. The gauge cluster will then display the following information for 5 seconds:

Software Rev: XXX
Hardware Rev: XXX
Active Faults: XXX
Total Faults: XXX

NOTE – The gauge cluster will only display “Software Rev” and “Hardware Rev” for 5 seconds followed by the message “Diagnostic Trouble Codes are not available” if the vehicle is not equipped with the option to display codes.

If faults are present, the gauge cluster display will show each diagnostic trouble code for 10 seconds and then automatically scroll to the next entry and continue to cycle through the faults. Once all faults have been displayed the number of faults will be displayed again, then the cycle will repeat. To manually cycle through the fault list press and release the cluster display selector button. The following information will be displayed for each fault:

SPN: XXXX FMI: XX
Active
OC: XXX SA: XXX

SPN: XXXX FMI: XX
Previously Active OC: XXX SA: XXX

NOTE – Turning the key switch off, turning the key switch to the CRANK position, or releasing the park brake will take the gauge cluster out of the diagnostic mode.

Displaying Codes on the VID (if equipped)

The VID can be used to display all diagnostic trouble codes (DTC) on the vehicle. Suspect parameter number (SPN), failure mode indicator (FMI) and occurrence count numbers are listed. Source addresses and DTC descriptions are presented in plain text.

NOTE – The VID will display “Not Available” if a DTC description is not available for a particular fault.

Displaying codes will only be allowed if all of the following conditions are true:

• The key switch is in the IGNITION position.
• AND displaying codes is allowed due to vehicle orderable options
• AND the programmable parameter “Diagnostics” is enabled using Diamond Logic® Builder (DLB).
• The vehicle is not moving (the Vehicle Speed is equal to zero).
• The feature is not password protected to prevent unauthorized access. Refer to the Vehicle Information Display Owner’s Manual for more information.

Perform the following steps if all of the above conditions are met:

1. Go to the main menu screen

NOTE – The following selections will not be available if the vehicle is not equipped with the option to display codes.

2. Select “DIAGNOSTIC CODES”

3. Select “ACTIVE” or “INACTIVE”. The VID may initiate a password prompt if the VID has been password protected. Refer to the Vehicle Information Display Owner’s Manual for more information.

The VID will indicate “NO FAULT DETECTED” if faults are not found. Scroll through the list of faults if faults are present.
The following information will be displayed for each fault: SPN : FMI OC
SA
DTC Description

CLEARING DIAGNOSTIC TROUBLE CODES

Previously active diagnostic trouble codes can only be cleared by a service tool, such as Diamond Logic® Builder (DLB). Some previously active codes may not be cleared by this method.

DEFINITIONS

“SPN” represents the Suspect Parameter Number. This number identif es the item for which diagnostics are being reported.
FMI” is the Failure Mode Indicator. This number represents the type of failure detected. Refer to Failure Mode Indicators (FMI) below for more information.
Active” or “Previously Active” will be displayed to identify whether a fault is currently active or if the fault was previously active.
OC” is the Occurrence Count. This number represents the number of times a fault has gone from previously active to active.
“SA” is the Source Address. This number identif es the module reporting the fault. Refer to Source Addresses (SA) for more information.

FAILURE MODE INDICATORS (FMI)

FMI=0 – Data Valid But Above Normal Operational Range – Most Severe Level
FMI=1 – Data Valid But Below Normal Operational Range – Most Severe Level
FMI=2 – Data Erratic, Intermittent Or Incorrect
FMI=3 – Voltage Above Normal, Or Shorted To High Source
FMI=4 – Voltage Below Normal, Or Shorted To Low Source
FMI=5 – Current Below Normal Or Open Circuit
FMI=6 – Current Above Normal Or Grounded Circuit
FMI=7 – Mechanical System Not Responding Or Out Of Adjustment
FMI=8 – Abnormal Frequency Or Pulse Width Or Period
FMI=9 – Abnormal Update Rate
FMI=10 – Abnormal Rate Of Change
FMI=11 – Root Cause Not Known
FMI=12 – Bad Intelligent Device Or Component
FMI=13 – Out Of Calibration
FMI=14 – Special Instructions
FMI=15 – Data Valid But Above Normal Operating Range – Least Severe Level
FMI=16 – Data Valid But Above Normal Operating Range – Moderately Severe Level
FMI=17 – Data Valid But Below Normal Operating Range – Least Severe Level
FMI=18 – Data Valid But Below Normal Operating Range – Moderately Severe Level
FMI=19 – Received Network Data In Error
FMI=20 – Data Drifted High
FMI=21 – Data Drifted Low
FMI=31 – Condition Exists

SOURCE ADDRESSES (SA)

NOTE – The available source addresses will vary depending on each vehicle configuration.

NOTE – Diagnostic Trouble Codes listed in this document are Body Controller, Auxiliary Gauge Switch Pack, Secondary Instrument Cluster, Instrument Cluster, Rear HVAC Module, and Compass Module.

DIAGNOSTIC TROUBLE CODE (DTC) LIST

SPN

DTC Description

FMI

Message

Cause

Comments

Pins

116

Brake Application Pressure

Brake Application Pressure Sensor

reading above normal range

Brake Application Sensor Shorted High or

faulty sensor system

1600-B14

116

158

Brake Application Pressure

Battery Potential (Voltage), Switched

Brake Application Pressure Sensor reading below normal range

Key State Ignition Signal Error

Brake Application Sensor Short To Ground or Open Circuit or faulty sensor system

Open in Ignition Signal Input Circuit To BC

1600-B14

1600-A16

168

Electrical Potential (Voltage)

Comm. fault from ESC/BC to PP3.

DC Module Overvoltage condition on

Datalink interrupted between ESC and Powerpack.

An Over Voltage Condition in the DC

The Power Pack E Module has stopped receiving heart beet message from the ESC/BC.

A High Battery Cutout fault has

168

Electrical Potential (Voltage)

Vehicle DC Bus.

AC Module Overvoltage condition on

regulator (Vehicle Battery Bus).

An Over Voltage Condition in the AC

occurred and the source of the fault is the DC regulator (Vehicle Battery Bus).

A high Battery Cutout fault has

168

Electrical Potential (Voltage)

High Voltage DC Bus.

DC Module Undervoltage condition

module (Inverter High Voltage Bus).

An Under Voltage Condition in the DC

occurred and the source of the fault is the AC module (inverter high voltage bus).

A Low Battery Cutout fault has

168

Electrical Potential (Voltage)

on Vehicle DC Bus.

AC Module Undervoltage condition

regulator (Vehicle Battery Bus).

An Under Voltage Condition in the AC

occurred and the source of the fault is the DC regulator (Vehicle Battery Bus).

A low Battery Cutout fault has

168

Electrical Potential (Voltage)

on High Voltage DC Bus.

AC Module has shutdown due to

module (Inverter High Voltage Bus).

A Surge may have occurred for a while in

occurred and the source of the fault is the AC module (inverter high voltage bus).

An Overload condition has been

168

Electrical Potential (Voltage)

overload condition.

Phase missing fault/alternator fault.

the Vehicle AC bus for a long time (The inverter supplies additional current to the load).

One or more of the three phase wire from

detected in the AC module and the Vehicle AC bus is shutdown.

One or more of the three phase

168

Electrical Potential (Voltage)

DC module over temperature

the Dynamic Alternator to the Power Pack E module may be disconnected.

An overcurrent condition in the Vehicle DC

wires from the alternator is disconnected. The Power Pack system is shutdown and requires an ignition cycle.

An Over Temperature fault has

168

Electrical Potential (Voltage)

condition.

AC module over temperature

Bus might have caused an over temperature.

An overcurrent condition in the Vehicle AC

occurred and the source of the fault is the DC regulator (Vehicle Battery Bus).

An Over temperature fault has

168

Electrical Potential (Voltage)

condition.

PPE3 Fuse Open.

Bus might have caused an over temperature.

Load exceeded rating.

occurred and the source of the fault is the AC module (inverter high voltage bus).

PPE3 module Fuse is Open.

175

Engine Oil Temperature 1

Engine Oil Temp Sensor reading above normal range

Engine Oil Temp Sensor reading

Engine Oil Temperature Sensor Shorted High or Open Circuit or faulty sensor system

Engine Oil Temperature Sensor Short to

1600-B6

177

Transmission Oil Temperature

below normal range

Transmission Oil Temperature

Ground or faulty sensor system

Transmission Oil Temperature Sensor

1600-B7

177

Transmission Oil Temperature

Sensor reading above normal range

Transmission Oil Temperature

Shorted High or Open Circuit or faulty sensor system

Transmission Oil Temperature Sensor

1600-B7

Sensor reading below normal range

Short to Ground or faulty sensor system

247

564

Total Engine Hours

Differential Lock State – Central

Engine Total Hours Not Received

Transfer Case Lock Under Current

The Engine Control Module did send the Total Engine Hours or possible Data Link failure

Current below normal or open circuit

Not available

Not

564

Differential Lock State – Central

Or Open Circuit

Transfer Case Lock Relay Over

Current above normal or grounded circuit

Not available

available

Not

566

Differential Lock State – Central Rear

Current

Power Divider Lock Relay Under

Open Circuit in Power Divider Lock Circuit

available

566

Differential Lock State – Central Rear

Current Or Open Circuit

Power Divider Lock Relay Over

Short To Ground in Power Divider Lock

567

Differential Lock State – Front Axle 1

Current

Forward Axle 1 Diff lock air solenoid

Circuit

Current below normal or open circuit

Not available

Not

567

Differential Lock State – Front Axle 1

output undercurrent or open circuit

Forward Axle 1 Diff lock air solenoid

Current above normal or grounded circuit

Not available

available

Not

569

Differential Lock State – Rear Axle 1

output overcurrent

Forward Rear Diff Lock Relay Under

Open Circuit in Forward Rear Diff Lock

available

Current Or Open Circuit

Circuit

569

Differential Lock State – Rear Axle 1

Forward Rear Diff Lock Relay Over Current

Short To Ground in Forward Rear Diff Lock Circuit

570

Differential Lock State – Rear Axle 2

Rear Rear Diff Lock Relay Under Current Or Open Circuit

Rear Rear Diff Lock Relay Over

Open Circuit in Rear Rear Diff Lock Circuit

Short To Ground in Rear Rear Diff Lock

571

Retarder Enable – Brake Assist

Current

Retarder Enable – Brake Assist

Circuit

Data erratic, intermittent or incorrect

576

Switch

ASR Off-road Switch

On/Off switch failure

Traction Disable panel mounted

Data erratic, intermittent or incorrect

577

ASR “Hill Holder” Switch

switch is in an invalid position

HSA Disable Switch error

Fault in HSA Disable Switch

Not available

Not

596

Cruise Control Enable Switch

Cruise Control Switch reading above

Shorted High or Open in Cruise Control

available

1600-B16

596

Cruise Control Enable Switch

normal range

Cruise Control Switch reading below

Switches Circuit

Short To Ground in Cruise Control

1600-B16

normal range

Switches Circuit

116

Brake Application Pressure

Brake Application Pressure Sensor

reading above normal range

Brake Application Sensor Shorted High or

faulty sensor system

1600-B14

116

158

Brake Application Pressure

Battery Potential (Voltage), Switched

Brake Application Pressure Sensor reading below normal range

Key State Ignition Signal Error

Brake Application Sensor Short To Ground or Open Circuit or faulty sensor system

Open in Ignition Signal Input Circuit To BC

1600-B14

1600-A16

168

Electrical Potential (Voltage)

Comm. fault from ESC/BC to PP3.

DC Module Overvoltage condition on

Datalink interrupted between ESC and Powerpack.

An Over Voltage Condition in the DC

The Power Pack E Module has stopped receiving heart beet message from the ESC/BC.

A High Battery Cutout fault has

168

Electrical Potential (Voltage)

Vehicle DC Bus.

AC Module Overvoltage condition on

regulator (Vehicle Battery Bus).

An Over Voltage Condition in the AC

occurred and the source of the fault is the DC regulator (Vehicle Battery Bus).

A high Battery Cutout fault has

168

Electrical Potential (Voltage)

High Voltage DC Bus.

DC Module Undervoltage condition

module (Inverter High Voltage Bus).

An Under Voltage Condition in the DC

occurred and the source of the fault is the AC module (inverter high voltage bus).

A Low Battery Cutout fault has

168

Electrical Potential (Voltage)

on Vehicle DC Bus.

AC Module Undervoltage condition

regulator (Vehicle Battery Bus).

An Under Voltage Condition in the AC

occurred and the source of the fault is the DC regulator (Vehicle Battery Bus).

A low Battery Cutout fault has

168

Electrical Potential (Voltage)

on High Voltage DC Bus.

AC Module has shutdown due to

module (Inverter High Voltage Bus).

A Surge may have occurred for a while in

occurred and the source of the fault is the AC module (inverter high voltage bus).

An Overload condition has been

168

Electrical Potential (Voltage)

overload condition.

Phase missing fault/alternator fault.

the Vehicle AC bus for a long time (The inverter supplies additional current to the load).

One or more of the three phase wire from

detected in the AC module and the Vehicle AC bus is shutdown.

One or more of the three phase

168

Electrical Potential (Voltage)

DC module over temperature

the Dynamic Alternator to the Power Pack E module may be disconnected.

An overcurrent condition in the Vehicle DC

wires from the alternator is disconnected. The Power Pack system is shutdown and requires an ignition cycle.

An Over Temperature fault has

168

Electrical Potential (Voltage)

condition.

AC module over temperature

Bus might have caused an over temperature.

An overcurrent condition in the Vehicle AC

occurred and the source of the fault is the DC regulator (Vehicle Battery Bus).

An Over temperature fault has

168

Electrical Potential (Voltage)

condition.

PPE3 Fuse Open.

Bus might have caused an over temperature.

Load exceeded rating.

occurred and the source of the fault is the AC module (inverter high voltage bus).

PPE3 module Fuse is Open.

175

Engine Oil Temperature 1

Engine Oil Temp Sensor reading above normal range

Engine Oil Temp Sensor reading

Engine Oil Temperature Sensor Shorted High or Open Circuit or faulty sensor system

Engine Oil Temperature Sensor Short to

1600-B6

177

Transmission Oil Temperature

below normal range

Transmission Oil Temperature

Ground or faulty sensor system

Transmission Oil Temperature Sensor

1600-B7

177

Transmission Oil Temperature

Sensor reading above normal range

Transmission Oil Temperature

Shorted High or Open Circuit or faulty sensor system

Transmission Oil Temperature Sensor

1600-B7

Sensor reading below normal range

Short to Ground or faulty sensor system

247

564

Total Engine Hours

Differential Lock State – Central

Engine Total Hours Not Received

Transfer Case Lock Under Current

The Engine Control Module did send the Total Engine Hours or possible Data Link failure

Current below normal or open circuit

Not available

Not

564

Differential Lock State – Central

Or Open Circuit

Transfer Case Lock Relay Over

Current above normal or grounded circuit

Not available

available

Not

566

Differential Lock State – Central Rear

Current

Power Divider Lock Relay Under

Open Circuit in Power Divider Lock Circuit

available

566

Differential Lock State – Central Rear

Current Or Open Circuit

Power Divider Lock Relay Over

Short To Ground in Power Divider Lock

567

Differential Lock State – Front Axle 1

Current

Forward Axle 1 Diff lock air solenoid

Circuit

Current below normal or open circuit

Not available

Not

567

Differential Lock State – Front Axle 1

output undercurrent or open circuit

Forward Axle 1 Diff lock air solenoid

Current above normal or grounded circuit

Not available

available

Not

569

Differential Lock State – Rear Axle 1

output overcurrent

Forward Rear Diff Lock Relay Under

Open Circuit in Forward Rear Diff Lock

available

Current Or Open Circuit

Circuit

569

Differential Lock State – Rear Axle 1

Forward Rear Diff Lock Relay Over Current

Short To Ground in Forward Rear Diff Lock Circuit

570

Differential Lock State – Rear Axle 2

Rear Rear Diff Lock Relay Under Current Or Open Circuit

Rear Rear Diff Lock Relay Over

Open Circuit in Rear Rear Diff Lock Circuit

Short To Ground in Rear Rear Diff Lock

571

Retarder Enable – Brake Assist

Current

Retarder Enable – Brake Assist

Circuit

Data erratic, intermittent or incorrect

576

Switch

ASR Off-road Switch

On/Off switch failure

Traction Disable panel mounted

Data erratic, intermittent or incorrect

577

ASR “Hill Holder” Switch

switch is in an invalid position

HSA Disable Switch error

Fault in HSA Disable Switch

Not available

Not

596

Cruise Control Enable Switch

Cruise Control Switch reading above

Shorted High or Open in Cruise Control

available

1600-B16

596

Cruise Control Enable Switch

normal range

Cruise Control Switch reading below

Switches Circuit

Short To Ground in Cruise Control

1600-B16

normal range

Switches Circuit

1837

Convoy Driving Lamp Select

BO Drive Overcurrent

Current above normal or grounded circuit Not available

1840

Rear Black Out Marker Select

BO Marker Overcurrent

Current above normal or grounded circuit Not available

1841

Black Out Brake/Stop Lamp Select

BO Stop Overcurrent

Current above normal or grounded circuit Not available

2000

Source Address 0

ECM Data Link Comm. Failure

PTC1 (PGN 64892) not Received

Faulty ECM or Drivetrain Data Link

ECM not Programmed for Aftertreatment,

from Engine

Faulty ECM, or Faulty Drivetrain Data Link

2003

2011

Source Address 3

Source Address 11

TCM Data Link Comm. Failure

ABS Data Link Comm. Failure

Faulty TCM or Drivetrain Data Link

Faulty ABS Module or Drivetrain Data Link

2023

Gauge Cluster

EGC Data Link Comm. Failure

Faulty EGC or Drivetrain Data Link

2040

Auxiliary Switch Pack #1

AGSP #1 Data Link Comm. Failure

Abnormal update rate

2058

Source Address 58

Rear HVAC Data Link

Faulty Rear HVAC or Body Builder Data

2058

Source Address 58

Communication Failure

Rear HVAC Data Link

Link

Faulty Rear HVAC or Body Builder Data

2062

Source Address 62

Communication Failure

Meritor Wabco Brake Controller Data

Link

Faulty Meritor Wabco Brake Controller Not available

2225

Remote Power Module #1 Fuse

Link Comm. Failure to BC

RPM #1 Data Link Comm. Failure

Module Data Link

Abnormal update rate

2225

Remote Power Module #1 Fuse

Remote Power Module #1 (address

Drivetrain J1939 data link, an improperly

225) has an address problem.

addressed RPM module, or a missing RPM module that the BC is expecting

2226

Remote Power Module #2 Fuse

RPM #2 Data Link Comm. Failure

Remote Power Module #2 (address

Abnormal update rate

Drivetrain J1939 data link, an improperly

226) has an address problem.

addressed RPM module, or a missing RPM module that the BC is expecting

2227

Source Address 227

RPM #3 Data Link Comm. Failure

Remote Power Module #3 (address

Abnormal update rate

Drivetrain J1939 data link, an improperly

227) has an address problem.

addressed RPM module, or a missing RPM module that the BC is expecting

2228

Remote Power Module #4 Fuse

RPM #4 Data Link Comm. Failure

Remote Power Module #4 (address

Abnormal update rate

Drivetrain J1939 data link, an improperly

228) has an address problem.

addressed RPM module, or a missing RPM module that the BC is expecting

2229

Source Address 229

RPM #5 Data Link Comm. Failure

Remote Power Module #5 (address

Abnormal update rate

Drivetrain J1939 data link, an improperly

229) has an address problem.

addressed RPM module, or a missing RPM module that the BC is expecting

2230

Source Address 230

RPM #6 Data Link Comm. Failure

Remote Power Module #6 (address

Abnormal update rate

Drivetrain J1939 data link, an improperly

230) has an address problem.

addressed RPM module, or a missing RPM module that the BC is expecting

2231

Remote Power Module #7 Fuse

RPM #7 Data Link Comm. Failure

Remote Power Module #7 (address

Abnormal update rate

Drivetrain J1939 data link, an improperly

231) has an address problem.

addressed RPM module, or a missing RPM module that the BC is expecting

2233

2234

Source Address 233

Remote Air Solenoid #2 Fuse

Rear Driver Door Pod Data Link Comm. Failure

Rear Passenger Door Pod Data Link

Faulty Rear Driver Door Pod Module or Switch Data Link

Faulty Rear Passenger Door Pod Module

2236

Source Address 236

Comm. Failure

Driver Door Pod Data Link Comm.

or Switch Data Link

Faulty Driver Door Pod Module or Switch

2237

Source Address 237

Failure

Passenger Door Pod Data Link

Data Link

Faulty Passenger Door Pod Module or

2239

Source Address 239

Comm. Failure

HCM Data Link Comm. Failure

Switch Data Link

Faulty HCM or Drivetrain Data Link

2239

Source Address 239

HCM Address Conflict

Drivetrain J1939 data link, an improperly

2247

Source Address 247

Communication fault from PP3 to

addressed HCM, or a missing HCM that the BC is expecting

Private J1939 datalink problem (exceeded BC has failed to receive heartbeat

2361

Tractor Rear High Mounted Work

BC.

Work Light Switch Error

bandwidth). message from PowerPack E module.

Faulty Switch Actuator or Microswitch for

2362

Lights Command

Tractor Rear High Mounted Work

Work Light Undercurrent

Work Light Switch

Open in Work Light Circuit

2362

Lights

Tractor Rear High Mounted Work

Work Light Overcurrent

Short To Ground or Overload in Work

2368

Lights

Left Turn Signal Lights

Left Front Turn Lamp Undercurrent

Light Circuit

Open in Left Front Turn Signal Circuit

2368

Left Turn Signal Lights

Left Front Turn Lamp Overcurrent

Short To Ground or Overload in Left Front

2370

Right Turn Signal Lights

Right Front Turn Lamp Undercurrent

Turn Signal Circuit

Open in Right Front Turn Signal Circuit

2370

Right Turn Signal Lights

Right Front Turn Lamp Overcurrent

Short To Ground or Overload in Right

2372

Left Stop Light

Left Rear Turn Lamp Undercurrent

Front Turn Signal Circuit

Open in Left Rear Turn Signal Circuit

2372

Left Stop Light

Left Rear Turn Lamp Overcurrent

Short To Ground or Overload in Left Rear

2374

Right Stop Light

Right Rear Turn Lamp Undercurrent

Turn Signal Circuit

Open in Right Rear Turn Signal Circuit

2374

Right Stop Light

Right Rear Turn Lamp Overcurrent

Short To Ground or Overload in Right

881

Right Turn Lamp Circuit (Green)

Trailer Right Turn Lamp Relay Under

Current Or Open Circuit

Trailer Right Turn Lamp Relay Over

Open Circuit in Trailer Right Turn Lamp

Circuit

Short To Ground in Trailer Right Turn

1601-E15

882

Tail Lamp/License Plate Lamp

Current

Trailer License Plate Lamp Relay

Lamp Circuit

Open Circuit in Trailer License Plate

1601-E10

882

Circuit (Brown)

Tail Lamp/License Plate Lamp

Under Current Or Open Circuit

Trailer License Plate Lamp Relay

Lamp Circuit

Short To Ground in Trailer License Plate

1601-E10

973

Circuit (Brown)

Engine Retarder Selection

Over Current

Engine Retarder Level Selection

Lamp Circuit

Faulty Switch Actuator or Microswitch for

Switch Error

Engine Retarder Level Select Switch

980

PTO Enable Switch

Engine PTO Switch Error

Data erratic, intermittent or incorrect

986

1043

Requested Percent Fan Speed

Internal Sensor Voltage Supply

Engine Fan Switch Error

Bias Voltage reading above normal

Faulty Switch Actuator or Microswitch for Engine Fan Switch

Bias Voltage Circuit Shorted High

1043

Internal Sensor Voltage Supply

range

Bias Voltage reading below normal

Short To Ground in Bias Voltage Circuit

1079

Vref Sensor Supply Voltage

range

5V Sensor Supply Above Normal

Data valid but above normal operational

1079

Vref Sensor Supply Voltage

Range

5V Sensor Supply Below Normal

range – most severe level

Data valid but below normal operational

1081

Wait to Start Lamp

Range

Wait to Start Lamp

range – most severe level

Output shorted to ground

1081

Wait to Start Lamp

Output overheat

1087

Service Brake Air Pressure Circuit #1

Primary Air Tank Sensor reading above normal range

Primary Air Tank Sensor reading

Primary Air Tank Sensor Shorted High or faulty sensor system

Primary Air Tank Sensor Short To Ground

1600-B2

below normal range

or Open Circuit or faulty sensor system

1088

Service Brake Air Pressure Circuit #2

Secondary Air Tank Sensor reading above normal range

Secondary Air Tank Sensor reading

Secondary Air Tank Sensor Shorted High or faulty sensor system

Secondary Air Tank Sensor Short To

1600-B3

1089

Auxiliary Equipment Supply Pressure

below normal range

Auxiliary Air Tank Sensor Reading

Ground or Open Circuit or faulty sensor system

Short to High in Air Pressure Auxiliary

1600-B2

1089

Auxiliary Equipment Supply Pressure

Above Normal

Auxiliary Air Tank Sensor Reading

Sensor Circuit

Short to Ground or Open in Air Pressure

1600-B2

1231

Body Address Claim/Message

Below Normal

J1939 Body Builder Data Link Lost

Auxiliary Sensor Circuit

Faulty BC or Bodybuilder Data Link

1231

Timeout

Body Address Claim/Message

Global Broadcast Messages, J1939,

Timeout

proprietary, private bus (body builder) (address 255) has an unknown fault.

1238

1378

Traction Control Override Switch

Change Oil Lamp

ATC OFF-ROAD Switch Error

Change Oil Lamp

Faulty Switch Actuator or Micro switch for ATC OFF-ROAD Switch

Output shorted to ground

1378

Change Oil Lamp

Output overheat

1382

1547

Fuel Filter (suction side) Differential Pressure

A/C Evaporator Temperature

The filter between the fuel pump and the fuel tank is plugged.

HVAC Inlet Temp Sensor reading

Heavy build up of particulate matter in the The detection has indicated a value fuel filter preventing fuel flow. of 51 on the fuel filter signal which

indicates a severely restricted or plugged condition.

HVAC Refrigerant Inlet Temperature

1600-B5

1547

A/C Evaporator Temperature

above normal range

HVAC Inlet Temp Sensor reading

Sensor Shorted High or Open Circuit or faulty sensor system

HVAC Refrigerant Inlet Temperature

1600-B5

1548

HVAC Duct Temperature

below normal range

HVAC Outlet Temp Sensor reading

Sensor Short To Ground or faulty sensor system

HVAC Refrigerant Outlet Temperature

1600-B13

1548

HVAC Duct Temperature

above normal range

HVAC Outlet Temp Sensor reading

Sensor Shorted High or Open Circuit or faulty sensor system

HVAC Refrigerant Outlet Temperature

1600-B13

1552

Operator Input device for Cab

below normal range

HVAC Control Head Temperature

Sensor Short To Ground or faulty sensor system

HVAC Motor in Wrong Position or

1553

Climate Control

HVAC Blower Motor Speed

Mix DM1

HVAC Blower Speed Analog Input

Jammed

HVAC Blower Speed Control Shorted

1600-B15

1553

Adjustment

HVAC Blower Motor Speed

reading above normal range

HVAC Blower Speed Analog Input

High or Open Circuit or faulty sensor system

HVAC Blower Speed Control Short To

1600-B15

1660

Adjustment

Engine Automatic Start Alarm

reading below normal range

Remote Start Alarm Buzzer Relay

Ground or faulty sensor system

Open Circuit in Remote Start Alarm

1660

Engine Automatic Start Alarm

Under Current Or Open Circuit

Remote Start Alarm Buzzer Relay

Buzzer Circuit

Short To Ground in Remote Start Alarm

1709

Transmission Controller Power

Over Current

PRNDL Pseudo ignition relay driver

Buzzer Circuit

Current below normal or open circuit

1601-E3

1709

Relay

Transmission Controller Power

output Under Current Or Open Circuit

PRNDL Pseudo ignition relay driver

Current above normal or grounded circuit

1601-E3

1716

Relay

Retarder Selection, non-engine

output overcurrent

Transmission Retarder Level

Data erratic, intermittent or incorrect

1741

Level Control Mode

Selection Switch Failure

Mode Selection Switch Damaged or

Data Valid but Above Normal Range, Not available

Not

1741

Level Control Mode

Not Connected

Possible ECU Malfunction

Most Severe

Data Valid, but Below Normal Range, Not available

available

Not

1747

Kneeling Control Mode Request

Suspension Dump Switch Error

Most Severe

Faulty Switch Actuator or Microswitch for

available

1755

Lowering Control Mode Rear Axle

Suspension Dump Solenoid B Relay

Suspension Dump Switch

Open Circuit in Suspension Dump

Under Current Or Open Circuit

Solenoid B Circuit

1755

1756

Lowering Control Mode Rear Axle

Lifting Control Mode Rear Axle

Suspension Dump Solenoid B Relay Over Current

Suspension Dump Solenoid A Relay

Short To Ground in Suspension Dump Solenoid B Circuit

Open Circuit in Suspension Dump

Under Current Or Open Circuit

Solenoid A Circuit

1756

1820

Lifting Control Mode Rear Axle

Ramp / Wheel Chair Lift Position

Suspension Dump Solenoid A Relay Over Current

Wheelchair Lift Solenoid Relay

Short To Ground in Suspension Dump Solenoid A Circuit

Current below normal or open circuit

1601-E1

1820

Ramp / Wheel Chair Lift Position

Under Current Or Open Circuit

Wheelchair Lift Solenoid Relay Short

Current above normal or grounded circuit

1601-E1

To Ground

33	2378	Tractor Marker Light	5	Park Lights Undercurrent	Open in Park Lights Circuit		1604-G
33	2378	Tractor Marker Light	6	Park Lights Overcurrent	Short To Ground or Overload in Park		1604-G
					Lights Circuit
33	2387	Tractor Front Fog Lights Command	2	Fog Light Switch Error	Faulty Switch Actuator or Microswitch for
					Fog Lights Switch
33	2388	Fog Light 1 command	5	Fog Lights Relay Under Current Or	Current below normal or open circuit		1603-F
				Open Circuit
33	2388	Fog Light 1 command	6	Fog Lights Relay Overcurrent	Current above normal or grounded circuit		1603-F
33	2389	Rear Fog Light Command	2	Rear Fog Light Switch error	Faulty Switch Actuator or Microswitch for	Not available	Not
					Rear Fog Lights Switch		available
33	2390	Rear Fog Lights	5	Rear Fog Light Relay Under Current	Under Current Or Open Circuit in Rear	Not available	Not
				Or Open Circuit	Fog Light Relay Driver		available
33	2390	Rear Fog Lights	6	Rear Fog Lights Relay Overcurrent	Short circuit in Rear Fog Light Relay	Not available	Not
					Driver		available
33	2392	Back Up Light and Alarm Horn	5	Reverse Lights Relay Under Current	Current below normal or open circuit		1601-E4
				Or Open Circuit
33	2392	Back Up Light and Alarm Horn	6	Reverse Lights Relay Overcurrent	Current above normal or grounded circuit		1601-E4

33	2404	Running Light	5	Running Light Control relay Under	Open Circuit in Running Lights Circuit		1601-F16
				Current Or Open Circuit
33	2404	Running Light	6	Running Light Control relay Over	Short To Ground in Running Lights Circuit		1601-F16
				Current
33	2609	Cab A/C Refrigerant Compressor	0	HVAC Pressure Sensor reading	HVAC Pressure Sensor Shorted High or		1600-B12
		Outlet Pressure		above normal range	faulty sensor system
33	2609	Cab A/C Refrigerant Compressor	1	HVAC Pressure Sensor reading	HVAC Pressure Short To Ground or Open		1600-B12
		Outlet Pressure		below normal range	Circuit or faulty sensor system
33	2609	Cab A/C Refrigerant Compressor	7	AC – Service Now. Fan	At the current operating ambient
		Outlet Pressure		Problem/Clogged Pipe	temperature the engine fan isn’t working,
					one of the AC lines has become plugged
					or the system is over-charged. The
					compressor is shut off to prevent damage.
33	2609	Cab A/C Refrigerant Compressor	16	HVAC High Pressure Protection	HVAC Head Pressure exceeded 480 psi.
		Outlet Pressure			Compressor shut off until next key cycle
					for system protection
33	2636	Windshield Wiper Motor ON/OFF	5	Wiper On/Off Relay Under Current	Open Circuit in Wiper On/Off Circuit		1601-E7
				Or Open Circuit
33	2636	Windshield Wiper Motor ON/OFF	6	Wiper On/Off Relay Over Current	Short To Ground in Wiper On/Off Circuit		1601-E7

33	2637	Windshield Wiper Motor Speed	5	Wiper High/Low Relay Under Current	Open Circuit in Wiper High/Low Circuit		1601-E6
				Or Open Circuit
33	2637	Windshield Wiper Motor Speed	6	Wiper High/Low Relay Over Current	Short To Ground in Wiper High/Low		1601-E6
					Circuit
33	2641	Horn	5	Electric Horn Undercurrent	Open in Electric Horn Circuit		1603-E
33	2641	Horn	6	Electric Horn Overcurrent	Short To Ground or Overload in City Horn		1603-E
					Circuit
33	2642	Mirror Heat 1	5	Left Mirror Heat Undercurrent	Open in Left Mirror Heat Circuit		1603-H
33	2642	Mirror Heat 1	6	Left Mirror Heat Overcurrent	Short to Ground or Overload in Left Mirror		1603-H
					Heat Circuit
33	2653	Headlamp Low Beam Left #1	5	Left Low Beam Under Current	Open in Left Low Beam Circuit		1604-B
33	2653	Headlamp Low Beam Left #1	6	Left Low Beam Short To Ground	Short To Ground or Overload in Left Low		1604-B
					Beam Circuit
33	2655	Headlamp Low Beam Right #1	5	Right Low Beam Open Circuit	Open in Right Low Beam Circuit		1604-H
33	2655	Headlamp Low Beam Right #1	6	Right Low Beam Short To Ground	Short to Ground or Overload in Right Low		1604-H
					Beam Circuit
33	2796	Transfer Case Selector Switch	2	Front Axle Switch Error	Data erratic, intermittent or incorrect

33	2819	Park Interlock Error	5	Park Position Interlock Solenoid	Current below normal or open circuit		1601-E8
				Output is Under Current Or Open
				Circuit.
33	2819	Park Interlock Error	6	Park Position Interlock Solenoid	Current above normal or grounded circuit		1601-E8
				Output is overcurrent.
33	3313	Fifth Wheel Lock Couple Status	5	Fifth Wheel Jaw Unlock Solenoid 1	Open Circuit or Defective Solenoid
		Indicator		output is Under Current Or Open
				Circuit
33	3313	Fifth Wheel Lock Couple Status	6	Fifth Wheel Jaw Unlock Solenoid 1	Short To Ground or Defective Solenoid
		Indicator		output is Overcurrent
33	3314	Fifth Wheel Release Control	2	Fifth Wheel Jaw Unlock Switch state is invalid	Data erratic, intermittent or incorrect
33	3316	Fifth Wheel Slider Lock Indicator	5	Fifth Wheel Slide Under Current Or	Open Circuit in Fifth Wheel Slide Circuit
				Open Circuit
33	3316	Fifth Wheel Slider Lock Indicator	6	Fifth Wheel Slide Over Current	Short To Ground in Fifth Wheel Slide
					Circuit
33	3412	Lock Status of Door 1	7	Driver Door Lock Motor Failure	Driver Door Pod Module Has Shorted,
					Opened, or Jammed Solenoid
33	3415	Lock Status of Door 2	7	Passenger Door Lock Motor Failure	Passenger Door Pod Module Has
					Shorted, Opened, or Jammed Solenoid
33	3418	Lock Status of Door 3	7	Rear Driver Door Lock Motor failure	Rear Driver Door Pod Module Has
					Shorted, Opened, or Jammed Solenoid
33	3421	Lock Status of Door 4	7	Rear Passenger Door Lock Motor	Rear Passenger Door Pod Module Has
				failure	Shorted, Opened, or Jammed Solenoid
33	3452	Enable Switch – Transmission input	2	Transmission PTO A Switch Error	Faulty Switch Actuator or Microswitch for
		shaft PTO 1			Transmission PTO A Switch
33	3452	Enable Switch – Transmission input	2	PTO Engagement Switch Error	Faulty Switch Actuator or Microswitch for
		shaft PTO 1			Transmission PTO A Switch
33	3453	Enable Switch – Transmission input	2	Transmission PTO B Switch Error	Faulty Switch Actuator or Microswitch for
		shaft PTO 2			Transmission PTO B Switch
33	3455	Enable Switch – Transfer case output	2	Transfer Case Switch Error	Data erratic, intermittent or incorrect
		shaft PTO
33	3455	Enable Switch – Transfer case output	2	Transfer Case PTO Switch Error	Data erratic, intermittent or incorrect
		shaft PTO
33	3456	Engagement Consent –	5	Transmission PTO A Solenoid Relay	Open Circuit in Transmission PTO A
		Transmission input shaft PTO 1		Under Current Or Open Circuit	Solenoid Circuit
33	3456	Engagement Consent –	6	Transmission PTO A Solenoid Relay	Short To Ground in Transmission PTO A
		Transmission input shaft PTO 1		Over Current	Solenoid Circuit
33	3457	Engagement Consent –	5	Transmission PTO B Solenoid Relay	Open Circuit in Transmission PTO B
		Transmission input shaft PTO 2		Under Current Or Open Circuit	Solenoid Circuit
33	3457	Engagement Consent –	6	Transmission PTO B Solenoid Relay	Short To Ground in Transmission PTO B
		Transmission input shaft PTO 2		Over Current	Solenoid Circuit

3461

Engagement Status – Transmission

input shaft PTO 2

Engagement Status – Transmission

PTO Air Solenoid Under Current Or

Open Circuit

PTO Air Solenoid Overcurrent

Current below normal or open circuit

Current above normal or grounded circuit

3695

input shaft PTO 2

Regen Inhibit Switch Indicator

Regen Inhibit Switch Error

Faulty Switch Actuator or Microswitch for

3696

Parked Regen Switch Indicator

Open Circuit in Regen Inhibit Switch

Regen Inhibit Switch

Open Circuit in the Regen Inhibit Switch

3696

Parked Regen Switch Indicator

Indicator Circuit.

Over current for Parked Regen

Indicator Circuit.

Over current or Short to Battery for the

3696

Parked Regen Switch Indicator

Switch Indicator

Parked Regen Switch Error

Parked Regen Switch Indicator.

Faulty Switch Actuator or Microswitch for

3697

Particulate Trap Lamp Command

Particulate Trap Lamp Relay Under

Parked Regen Switch

Open Circuit in Particulate Trap Lamp

3697

Particulate Trap Lamp Command

Current Or Open Circuit

Particulate Trap Lamp Relay Over

Circuit

Short to Ground in Particulate Trap Lamp

3698

Exhaust System High Temperature

Current

Exhaust System High Temperature

Circuit

Open Circuit in Exhaust System High

3698

Lamp Command

Exhaust System High Temperature

Lamp Command Under Current Or Open Circuit

Exhaust System High Temperature

Temperature Circuit

Short to Ground in Exhaust System High

Lamp Command

Lamp Command Over Current

Temperature Circuit

3950

Air Horn

Air Horn Undercurrent

Open in Air Horn Circuit

1602-E12

3950

Air Horn

Air Horn Overcurrent

Short To Ground or Overload in Air Horn

1602-E12

3952

Air Shield Light

Air Shield Lighting Overcurrent

Circuit

Short To Ground or Overload in Air Shield

1604-F

3957

Auxiliary Transmission Constant

Auxiliary Transmission Solenoid B

Light Circuit

Current below normal or open circuit

3957

Supply Actuator

Auxiliary Transmission Constant

(Constant Supply) output is Under Current Or Open Circuit.

Auxiliary Transmission Solenoid B

Current above normal or grounded circuit

3958

Supply Actuator

Auxiliary Transmission High Range

(Constant Supply) output is overcurrent.

Auxiliary Transmission Solenoid C

Current below normal or open circuit

3958

Actuator

Auxiliary Transmission High Range

(High) Output is Under Current Or Open Circuit.

Auxiliary Transmission Solenoid C

Current above normal or grounded circuit

3959

Actuator

Auxiliary Transmission Neutral

(High) output is overcurrent.

Auxiliary Transmission Solenoid A

Current below normal or open circuit

3959

Actuator

Auxiliary Transmission Neutral

(Neutral) output is Under Current Or Open Circuit.

Auxiliary Transmission Solenoid A

Current above normal or grounded circuit

3960

Actuator

Auxiliary Transmission Range Switch

(Neutral) output is overcurrent.

Auxiliary Transmission High/Low

Data erratic, intermittent or incorrect

3961

Body Equipment Hydraulic Power

Switch state is invalid.

TEM Epump Inhibit Relay Under

Current below normal or open circuit

1601-E1

3961

Auxiliary Pump Inhibit Command

Body Equipment Hydraulic Power

Current Or Open Circuit

TEM Epump Inhibit Relay Over

Current above normal or grounded circuit

1601-E1

3962

Auxiliary Pump Inhibit Command Bus Amber Signal Light 1

Current

Left Front Amber PWL Undercurrent

Current below normal or open circuit

1603-C

3962

Bus Amber Signal Light 1

Left Front Amber PWL Overcurrent

Current above normal or grounded circuit

1603-C

3963

Bus Amber Signal Light 2

Right Front Amber PWL Undercurrent

Right Front Amber PWL Overcurrent

Current below normal or open circuit

Current above normal or grounded circuit

1604-J

3964

Bus Amber Signal Light 3

Left Rear Amber PWL Undercurrent

Current below normal or open circuit

1603-G

3964

Bus Amber Signal Light 3

Left Rear Amber PWL Overcurrent

Current above normal or grounded circuit

1603-G

3965

Bus Amber Signal Light 4

Right Rear Amber PWL

Current below normal or open circuit

1603-K

3965

Bus Amber Signal Light 4

Undercurrent

Right Rear Amber PWL Overcurrent

Current above normal or grounded circuit

1603-K

3966

Bus Crossing Gate

Crossing Gate output is

Current below normal or open circuit

1602-E12

3966

Bus Crossing Gate

undercurrent.

Crossing Gate output is overcurrent.

Current above normal or grounded circuit

1602-E12

3967

Bus Passenger Door Close Relay

Bus Entrance Door Close Relay Driver Output is Under Current Or Open Circuit

Bus Entrance Door Close Relay

Current below normal or open circuit

Current above normal or grounded circuit

1601-E9

3969

Bus Passenger Door Control Switch

Driver Output is overcurrent

Bus Entrance Door Steering Wheel

Bus Door Control Switches Circuit Open

1600-B16

Switch Input Above Normal Range

or Shorted High

3969

Bus Passenger Door Control Switch 2

Bus Entrance Door Steering Wheel Switch Input Below Normal Range

Short To Ground in Bus Door Control Switches Circuit

1600-B16

3970

Bus Passenger Door Open Relay

Bus Entrance Door Open Relay Driver Output is Under Current Or Open Circuit

Bus Entrance Door Open Relay

Current below normal or open circuit

Current above normal or grounded circuit

1601-E13

3971

Bus Red Signal Light 1

Driver Output is overcurrent

Left Front Red PWL Undercurrent

Current below normal or open circuit

1603-H

3971

Bus Red Signal Light 1

Left Front Red PWL Overcurrent

Current above normal or grounded circuit

1603-H

3972

Bus Red Signal Light 2

Right Front Red PWL Undercurrent

Current below normal or open circuit

1603-F

3972

Bus Red Signal Light 2

Right Front Red PWL Overcurrent

Current above normal or grounded circuit

1603-F

3973

Bus Red Signal Light 3

Left Rear Red PWL Undercurrent

Current below normal or open circuit

1603-J

3973

Bus Red Signal Light 3

Left Rear Red PWL Overcurrent

Current above normal or grounded circuit

1603-J

3974

Bus Red Signal Light 4

Right Rear Red PWL Undercurrent

Current below normal or open circuit

1603-L

3974

Bus Red Signal Light 4

Right Rear Red PWL Overcurrent

Current above normal or grounded circuit

1603-L

3975

Bus Stop Arm

Bus Stop Arm Output is Under

Current below normal or open circuit

1601-E2

3975

Bus Stop Arm

Current Or Open Circuit

Bus Stop Arm Output is over current

Current above normal or grounded circuit

1601-E2

3976

Cab Dome Light 1

Cab Dome Light Open Circuit

Open in Cab Dome Light Circuit

1604-J

33	3976	Cab Dome Light 1	6	Cab Dome Light Short To Ground	Short To Ground or Overload in Cab	1604-J
					Dome Light Circuit
33	3977	Cab Dome Light 2	5	Sleeper Dome Light Relay Under	Open Circuit in Sleeper Dome Light	1601-F2
				Current Or Open Circuit	Circuit
33	3977	Cab Dome Light 2	6	Sleeper Dome Light Over Current	Short To Ground in Sleeper Dome Light	1601-F2
					Circuit
33	3978	Cab Dome Light 2 Switch	2	Sleeper Dome / Floor Search Light	Faulty Switch Actuator or Microswitch for
				Switch Error	Sleeper Dome / Floor Search Light Switch
33	3979	Cab Floor Light	5	Floor Lights Relay Under Current Or	Open Circuit in Floor Light Circuit	1601-E5
				Open Circuit
33	3979	Cab Floor Light	6	Floor Lights Relay Over Current	Short To Ground in Floor Light Circuit	1601-E5
33	3981	Cab HVAC Mode Control Actuator	2	HVAC Control Head Mode Fault	HVAC Motor in Wrong Position or
				DM1	Jammed
33	3982	Cab HVAC Rear Blower Speed	2	HVAC Rear Blower Speed Control	Faulty Switch Actuator or Microswitch for
		Control Switch		Switch Error	HVAC Rear Blower Speed Control Switch
33	3983	Cab HVAC Rear Temperature	2	Rear HVAC Temperature Control	Faulty Switch Actuator or Microswitch for
		Control Switch		Switch Error	Rear HVAC Temperature Control Switch
33	3984	Cab HVAC Recirculation Door	2	HVAC Control Head Air Inlet DM1	HVAC Motor in Wrong Position or
		Control Actuator			Jammed
33	3985	Cab HVAC System Controller	9	HVAC Control Head Circuit Failed To	Abnormal update rate
				Communicate With the Body
				Controller
33	3987	Compression Brake Enable Switch	5	Compression Brake Indicator output	Current below normal or open circuit	1601-E4
		Indicator Lamp		is Under Current Or Open Circuit
33	3987	Compression Brake Enable Switch	6	Compression Brake Indicator is over	Current above normal or grounded circuit	1601-E4
		Indicator Lamp		current
33	3988	Door 1 Control Module	7	Driver Door Pod Module Failure	Defective Driver Door Pod Module

33	3989	Door 1 Window Motor	7	Driver Window Motor Failure	Driver Door Pod Module Window Motor
					Has Short or Open or Window is Jammed
33	3990	Door 2 Control Module	7	Passenger Door Pod Module Failure	Defective Passenger Door Pod Module
33	3991	Door 2 Window Motor	7	Passenger Window Motor Failure	Passenger Door Pod Module Window
					Motor Has Short or Open or Window is
					Jammed
33	3992	Door 3 Control module	7	Rear Driver Door Pod Module Failure	Defective Rear Driver Door Pod Module

33	3993	Door 3 Window Motor	7	Rear Driver Window Motor Failure	Rear Driver Door Pod Module Window
					Motor Has Short or Open or Window is
					Jammed
33	3994	Door 4 Control Module	7	Rear Passenger Door Pod Module	Defective Rear Passenger Door Pod
				Failure	Module
33	3995	Door 4 Window Motor	7	Rear Passenger Window Motor	Rear Passenger Door Pod Module
				Failure	Window Motor Has Short or Open or
					Window is Jammed
33	3997	Electrical Accessory Power Relay	5	Electrical Accessory Request Relay	Open Circuit in Electrical Accessory	1601-E11
				Under Current Or Open Circuit	Request Circuit
33	3997	Electrical Accessory Power Relay	6	Electrical Accessory Request Relay	Short To Ground in Electrical Accessory	1601-E11
				Over Current	Request Circuit
33	3998	Electrical Load Shed OFF	5	Load Shed OFF Relay Under	Open Circuit in Load Shed OFF Circuit	1601-F7
				Current Or Open Circuit
33	3998	Electrical Load Shed OFF	6	Load Shed OFF Relay Over Current	Short To Ground in Load Shed OFF	1601-F7
					Circuit
33	3999	Electrical Load Shed ON	5	Load Shed ON Relay Under Current	Open Circuit in Load Shed ON Circuit	1601-F6
				Or Open Circuit
33	3999	Electrical Load Shed ON	6	Load Shed ON Relay Over Current	Short To Ground in Load Shed ON Circuit	1601-F6

33	4002	Engine Remote Start	6	TEM Engine Crank Relay Over	Current above normal or grounded circuit
				Current
33	4003	Engine Remote Stop	5	TEM Engine Stop Relay Under	Current below normal or open circuit	1601-E2
				Current Or Open Circuit
33	4003	Engine Remote Stop	6	TEM Engine Stop Relay Over	Current above normal or grounded circuit	1601-E2
				Current
33	4004	Exterior Lamp Check Switch	2	Exterior Lamp Check Switch Error	Data erratic, intermittent or incorrect
33	4007	Fifth Wheel Slide Lock Switch	2	Fifth Wheel Slide Switch Error	Faulty Switch Actuator or Microswitch for
					Fifth Wheel Slide Switch
33	4008	Fog Light 2	5	Right Fog Light Undercurrent	Open in Right Fog Light Circuit	1603-K

33	4008	Fog Light 2	6	Right Fog Light Overcurrent	Short To Ground or Overload in Right Fog	1603-K
					Light Output Circuit
33	4009	Fuel Filter Fuel Heater Relay	5	Fuel Heater Relay Under Current Or	Open Circuit in Fuel Heater Circuit	1601-F12
				Open Circuit
33	4009	Fuel Filter Fuel Heater Relay	6	Fuel Heater Relay Over Current	Short To Ground in Fuel Heater Circuit	1601-F12
33	4010	Fuel Tank Transfer Pump	5	Fuel Transfer Pump Relay Under	Open Circuit in Fuel Transfer Pump	1601-F11
				Current Or Open Circuit	Circuit
33	4010	Fuel Tank Transfer Pump	6	Fuel Transfer Pump Relay Short To	Short To Ground in Fuel Transfer Pump	1601-F11
				Ground	Circuit
33	4011	Headlamp 1 High Beam	5	Left High Beam Open Circuit	Open in Left High Beam Circuit	1604-C
33	4011	Headlamp 1 High Beam	6	Left High Beam Short To Ground	Short To Ground or Overload in Left High	1604-C
					Beam Circuit
33	4012	Headlamp 2 High Beam	5	Right High Beam Open Circuit	Open in Right High Beam Circuit	1604-K
33	4012	Headlamp 2 High Beam	6	Right High Beam Short To Ground	Short To Ground or Overload in Right	1604-K
					High Beam Circuit
33	4014	High Current Auxiliary Load Switch 1	2	High Current Load Switch Error	Data erratic, intermittent or incorrect
33	4016	High Current Auxiliary Power Relay 1	5	High Current Load Under Current Or	Current below normal or open circuit	1601-E16
				Open Circuit
33	4016	High Current Auxiliary Power Relay 1	6	High Current Load Overcurrent	Current above normal or grounded circuit	1601-E16
33	4022	Lift Gate Power Control Enable	5	Lift Gate Enable Undercurrent	Current below normal or open circuit	1603-J
33	4022	Lift Gate Power Control Enable	6	Lift Gate Enable Overcurrent	Current above normal or grounded circuit	1603-J
33	4023	Lift Gate Power Control Switch	2	Lift Gate Switch Error	Data erratic, intermittent or incorrect
33	4024	Marker Light Interrupt Switch	2	Marker Light Interrupt Switch Failure	Data erratic, intermittent or incorrect

33	4026	Mirror Heat 2	5	Right Mirror Heat Undercurrent	Open in Right Mirror Heat Circuit		1603-L
33	4026	Mirror Heat 2	6	Right Mirror Heat Overcurrent	Short To Ground or Overload in Right		1603-L
					Mirror Heat Circuit
33	4028	Service Brake Circuit 1 Air Tank	5	Service Brake Circuit 1 Air Tank	Current below normal or open circuit
		Drain Valve		Drain Valve Solenoid Under Current
				Or Open Circuit
33	4028	Service Brake Circuit 1 Air Tank	6	Service Brake Circuit 1 Air Tank	Current above normal or grounded circuit
		Drain Valve		Drain Valve Solenoid Short To
				Ground
33	4029	Service Brake Circuit 1 Air Tank	2	Service Brake Circuit 1 Air Tank	Data erratic, intermittent or incorrect
		Drain Valve Switch		Drain Switch Error
33	4030	Service Brake Circuit 2 Air Tank	5	Service Brake Circuit 2 Air Tank	Current below normal or open circuit
		Drain Valve		Drain Valve Solenoid Under Current
				Or Open Circuit
33	4030	Service Brake Circuit 2 Air Tank	6	Service Brake Circuit 2 Air Tank	Current above normal or grounded circuit
		Drain Valve		Drain Valve Solenoid Short To
				Ground
33	4031	Service Brake Supply Air Tank Drain	5	Service Brake Supply Air Tank Drain	Current below normal or open circuit
		Valve		Valve Solenoid Under Current Or
				Open Circuit
33	4031	Service Brake Supply Air Tank Drain	6	Service Brake Supply Air Tank Drain	Current above normal or grounded circuit
		Valve		Valve Solenoid Short To Ground
33	4032	Service Brake Supply Air Tank Drain	2	Service Brake Supply Air Tank Drain	Data erratic, intermittent or incorrect
		Valve Switch		Valve Switch Error
33	4033	Sleeper Remote – Start/Stop Enable	5	Sleeper Control Enable Relay Under	Current below normal or open circuit
		Command		Current or Open Circuit
33	4033	Sleeper Remote – Start/Stop Enable	6	Sleeper Control Enable Relay Over	Short To Ground in Sleeper Control
		Command		Current	Enable Circuit
33	4038	Snow Plow Forward Lighting Relay 2	5	Right Plow Light Relay Under	Current below normal or open circuit		1601-F16
				Current Or Open Circuit
33	4038	Snow Plow Forward Lighting Relay 2	6	Right Plow Light Relay Circuit Short	Current above normal or grounded circuit		1601-F16
				To Ground
33	4039	Snow Plow Forward Lighting Relay 1	5	Left Plow Light Relay Circuit Under	Current below normal or open circuit		1601-F12
				Current Or Open Circuit
33	4039	Snow Plow Forward Lighting Relay 1	6	Left Plow Light Relay Circuit Short	Current above normal or grounded circuit		1601-F12
				To Ground
33	4040	Snow Plow Lighting Mode Switch	2	Snow Plow Switch Error	Data erratic, intermittent or incorrect
33	4041	Software Loop Time Exceeded	14	Software Loop Time Exceeded in the	Software Configuration Too Big
				Body Controller, Internal Fault
33	4042	Trailer Auxiliary Power Switch	2	Trailer Auxiliary Power Switch Error	Faulty Switch Actuator or Microswitch for
					Auxiliary Trailer Switch
33	4043	Transfer Case Front Driveline	5	Transfer Case Front Driveline	Current below normal or open circuit
		Actuator		Solenoid Under Current Or Open
				Circuit
33	4043	Transfer Case Front Driveline	6	Transfer Case Front Driveline	Current above normal or grounded circuit
		Actuator		Solenoid Short To Ground
33	4044	Transfer Case High Range Actuator	5	Transfer Case High Range Solenoid	Current below normal or open circuit
				Under Current Or Open Circuit

33	4044	Transfer Case High Range Actuator	6	Transfer Case High Range Solenoid	Current above normal or grounded circuit
				Short To Ground

33	4045	Transfer Case Low Range Actuator	5	Transfer Case Low Range Solenoid	Current below normal or open circuit
				Under Current Or Open Circuit

33	4045	Transfer Case Low Range Actuator	6	Transfer Case Low Range Solenoid	Current above normal or grounded circuit
				Short To Ground

33	4046	Transfer Case Neutral Actuator	5	Transfer Case Neutral Solenoid	Current below normal or open circuit
				Under Current Or Open Circuit

33	4046	Transfer Case Neutral Actuator	6	Transfer Case Neutral Solenoid	Current above normal or grounded circuit
				Short To Ground

33	4047	Transfer Case Output Shaft PTO	5	Transfer Case Output Shaft PTO	Current below normal or open circuit
		Actuator		Actuator Under Current Or Open
				Circuit
33	4047	Transfer Case Output Shaft PTO	6	Transfer Case Output Shaft PTO	Current above normal or grounded circuit
		Actuator		Actuator Over Current
33	4048	Transfer Case Range Switch	2	Transfer Case Range Switch Error	Data erratic, intermittent or incorrect
33	4049	Transfer Case Rear Driveline	5	Transfer Case Rear Driveline Relay	Current below normal or open circuit
		Actuator		Under Current Or Open Circuit
33	4049	Transfer Case Rear Driveline	6	Transfer Case Rear Driveline Relay	Current above normal or grounded circuit
		Actuator		Over Current
33	4053	Transmission Input Shaft PTO 2	5	Transmission Input Shaft PTO	Current below normal or open circuit	Not available	Not
		Actuator		Engagement Actuator Circuit Under			available
				Current Or Open Circuit

33	4053	Transmission Input Shaft PTO 2	6	Transmission Input Shaft PTO	Current above normal or grounded circuit	Not available	Not
		Actuator		Engagement Actuator Circuit			available
				Overcurrent

33	4055	Transmission Retarder Enable Switch	2	Transmission Retarder On/Off switch Failure	Data erratic, intermittent or incorrect
33	4056	Two Speed Axle Actuator	5	Two Speed Axle Solenoid Relay	Current below normal or open circuit
				Under Current Or Open Circuit
33	4056	Two Speed Axle Actuator	6	Two Speed Axle Solenoid Relay	Current above normal or grounded circuit
				Short To Ground
33	4057	Wiper Motor	5	Wiper Motor Undercurrent	Open in Wiper Motor Circuit	1604-A
33	4057	Wiper Motor	6	Wiper Motor Overcurrent	Short To Ground or Overload in Wiper	1604-A
					Motor Circuit
33	4058	Cab Dome Light 1 Switch	2	Cab Dome Light Switch is reporting	Faulty Switch Actuator or Microswitch for
				an error.	Cab Dome Light Switch
33	520461	Switch 6-Pack #1 Data Link	9	Switch 6-Pack #1 Data Link Comm.	Faulty Switch Pack #1 or Switch Data Link
				Failure
33	520462	Switch 6-Pack #2 Data Link	9	Switch 6-Pack #2 Data Link Comm.	Faulty Switch Pack #2 or Switch Data Link
				Failure
33	520463	Switch 6-Pack #3 Data Link	9	Switch 6-Pack #3 Data Link Comm.	Faulty Switch Pack #3 or Switch Data Link
				Failure

520464

Electrical Accessory Request

Electrical Accessory Request Relay

Under Current Or Open Circuit

Open Circuit in Electrical Accessory

Request Circuit

520464

520465

Electrical Accessory Request

HVAC Control Head Multiple Motor

Electrical Accessory Request Relay Over Current

HVAC control Head Multiple Motor

Short To Ground in Electrical Accessory Request Circuit

HVAC Motor in Wrong Position or

520467

Faults

Comm. Loss from BC to Power Pack

Faults DM1

Comm. fault from BC to PP3.

Jammed

Private J1939 datalink problem (exceeded The Power Pack E Module has

520468

RPM 1 Channel 1 Cab Switch

RPM 1 Channel 1 Switch Error

bandwidth). stopped receiving heart beat message from the BC.

Data erratic, intermittent or incorrect

520469

RPM 1 Channel 1 Overcurrent

Current above normal or grounded circuit

520469

RPM 1 Channel 1 Overcurrent

520469

RPM 1 Channel 1 Overcurrent

Unavailable

RPM 1 Channel 1 Analog Input

(PGN 65313 , Byte 3) indicates a value of

FFh

RPM 1 Channel 1 Analog Input Data

520470

RPM 1 Channel 2 Cab Switch

Invalid Data

RPM 1 Channel 2 Switch Error

(PGN 65313 , Byte 3) indicates a value in the range of FCh to FEh

Data erratic, intermittent or incorrect

520471

RPM 1 Channel 2 Overcurrent

Current above normal or grounded circuit

520471

RPM 1 Channel 2 Overcurrent

RPM 1 Channel 2 Analog Input Data Unavailable

RPM 1 Channel 2 Analog Input Data (PGN 65313 , Byte 4) indicates a value of FFh

520471

RPM 1 Channel 2 Overcurrent

RPM 1 Channel 2 Analog Input Invalid Data

RPM 1 Channel 2 Analog Input Data (PGN 65313 , Byte 4) indicates a value in the range of FCh to FEh

520472

520473

RPM 1 Channel 3 Cab Switch

RPM 1 Channel 3 Overcurrent

RPM 1 Channel 3 Switch Error

RPM 1 Channel 3 Overcurrent

Data erratic, intermittent or incorrect

Current above normal or grounded circuit

520473

RPM 1 Channel 3 Overcurrent

520473

RPM 1 Channel 3 Overcurrent

Unavailable

RPM 1 Channel 3 Analog Input

(PGN 65313 , Byte 5) indicates a value of

FFh

RPM 1 Channel 3 Analog Input Data

520474

RPM 1 Channel 4 Cab Switch

Invalid Data

RPM 1 Channel 4 Switch Error

(PGN 65313 , Byte 5) indicates a value in the range of FCh to FEh

Data erratic, intermittent or incorrect

520475

RPM 1 Channel 4 Overcurrent

Current above normal or grounded circuit

520475

RPM 1 Channel 4 Overcurrent

RPM 1 Channel 4 Analog Input Data

520475

RPM 1 Channel 4 Overcurrent

Unavailable

RPM 1 Channel 4 Analog Input

(PGN 65313 , Byte 6) indicates a value of FFh

RPM 1 Channel 4 Analog Input Data

520476

RPM 1 Channel 5 Cab Switch

Invalid Data

RPM 1 Channel 5 Switch Error

(PGN 65313 , Byte 6) indicates a value in the range of FCh to FEh

Data erratic, intermittent or incorrect

520477

RPM 1 Channel 5 Overcurrent

Current above normal or grounded circuit

520477

RPM 1 Channel 5 Overcurrent

RPM 1 Channel 5 Analog Input Data

520477

RPM 1 Channel 5 Overcurrent

Unavailable

RPM 1 Channel 5 Analog Input

(PGN 65313 , Byte 7) indicates a value of FFh

RPM 1 Channel 5 Analog Input Data

520478

RPM 1 Channel 6 Cab Switch

Invalid Data

RPM 1 Channel 6 Switch Error

(PGN 65313 , Byte 7) indicates a value in the range of FCh to FEh

Data erratic, intermittent or incorrect

520479

RPM 1 Channel 6 Overcurrent

Current above normal or grounded circuit

520479

RPM 1 Channel 6 Overcurrent

RPM 1 Channel 6 Analog Input Data Unavailable

RPM 1 Channel 6 Analog Input Data (PGN 65313 , Byte 8) indicates a value of FFh

520479

RPM 1 Channel 6 Overcurrent

RPM 1 Channel 6 Analog Input Invalid Data

RPM 1 Channel 6 Analog Input Data (PGN 65313 , Byte 8) indicates a value in the range of FCh to FEh

520480

520481

RPM 2 Channel 1 Cab Switch

RPM 2 Channel 1 Overcurrent

RPM 2 Channel 1 Switch Error

RPM 2 Channel 1 Overcurrent

Data erratic, intermittent or incorrect

Current above normal or grounded circuit

520481

RPM 2 Channel 1 Overcurrent

520481

RPM 2 Channel 1 Overcurrent

Unavailable

RPM 2 Channel 1 Analog Input

(PGN 65313 , Byte 3) indicates a value of

FFh

RPM 2 Channel 1 Analog Input Data

520482

RPM 2 Channel 2 Cab Switch

Invalid Data

RPM 2 Channel 2 Switch Error

(PGN 65313 , Byte 3) indicates a value in the range of FCh to FEh

Data erratic, intermittent or incorrect

520483

RPM 2 Channel 2 Overcurrent

Current above normal or grounded circuit

520483

RPM 2 Channel 2 Overcurrent

RPM 2 Channel 2 Analog Input Data Unavailable

RPM 2 Channel 2 Analog Input Data (PGN 65313 , Byte 4) indicates a value of FFh

33	520483	RPM 2 Channel 2 Overcurrent	19	RPM 2 Channel 2 Analog Input Invalid Data	RPM 2 Channel 2 Analog Input Data (PGN 65313 , Byte 4) indicates a value in the range of FCh to FEh
33	520484	RPM 2 Channel 3 Cab Switch	2	RPM 2 Channel 3 Switch Error	Data erratic, intermittent or incorrect
33	520485	RPM 2 Channel 3 Overcurrent	6	RPM 2 Channel 3 Overcurrent	Current above normal or grounded circuit

33	520485	RPM 2 Channel 3 Overcurrent	14	RPM 2 Channel 3 Analog Input Data Unavailable	RPM 2 Channel 3 Analog Input Data (PGN 65313 , Byte 5) indicates a value of FFh
33	520485	RPM 2 Channel 3 Overcurrent	19	RPM 2 Channel 3 Analog Input Invalid Data	RPM 2 Channel 3 Analog Input Data (PGN 65313 , Byte 5) indicates a value in the range of FCh to FEh
33	520486	RPM 2 Channel 4 Cab Switch	2	RPM 2 Channel 4 Switch Error	Data erratic, intermittent or incorrect
33	520487	RPM 2 Channel 4 Overcurrent	6	RPM 2 Channel 4 Overcurrent	Current above normal or grounded circuit

33	520487	RPM 2 Channel 4 Overcurrent	14	RPM 2 Channel 4 Analog Input Data Unavailable	RPM 2 Channel 4 Analog Input Data (PGN 65313 , Byte 6) indicates a value of FFh
33	520487	RPM 2 Channel 4 Overcurrent	19	RPM 2 Channel 4 Analog Input Invalid Data	RPM 2 Channel 4 Analog Input Data (PGN 65313 , Byte 6) indicates a value in the range of FCh to FEh
33	520488	RPM 2 Channel 5 Cab Switch	2	RPM 2 Channel 5 Switch Error	Data erratic, intermittent or incorrect
33	520489	RPM 2 Channel 5 Overcurrent	6	RPM 2 Channel 5 Overcurrent	Current above normal or grounded circuit

33	520489	RPM 2 Channel 5 Overcurrent	14	RPM 2 Channel 5 Analog Input Data Unavailable	RPM 2 Channel 5 Analog Input Data (PGN 65313 , Byte 7) indicates a value of FFh
33	520489	RPM 2 Channel 5 Overcurrent	19	RPM 2 Channel 5 Analog Input Invalid Data	RPM 2 Channel 5 Analog Input Data (PGN 65313 , Byte 7) indicates a value in the range of FCh to FEh
33	520490	RPM 2 Channel 6 Cab Switch	2	RPM 2 Channel 6 Switch Error	Data erratic, intermittent or incorrect
33	520491	RPM 2 Channel 6 Overcurrent	6	RPM 2 Channel 6 Overcurrent	Current above normal or grounded circuit
33	520491	RPM 2 Channel 6 Overcurrent	14	RPM 2 Channel 6 Analog Input Data	RPM 2 Channel 6 Analog Input Data
33	520491	RPM 2 Channel 6 Overcurrent	19	Unavailable RPM 2 Channel 6 Analog Input	(PGN 65313 , Byte 8) indicates a value of FFh RPM 2 Channel 6 Analog Input Data
33	520504	RPM 4 Channel 1 Cab Switch	2	Invalid Data RPM 4 Channel 1 Switch Error	(PGN 65313 , Byte 8) indicates a value in the range of FCh to FEh Data erratic, intermittent or incorrect
33	520505	RPM 4 Channel 1 Overcurrent	6	RPM 4 Channel 1 Overcurrent	Current above normal or grounded circuit

33	520505	RPM 4 Channel 1 Overcurrent
33	520505	RPM 4 Channel 1 Overcurrent	19	Unavailable RPM 4 Channel 1 Analog Input	(PGN 65313 , Byte 3) indicates a value of FFh RPM 4 Channel 1 Analog Input Data
33	520506	RPM 4 Channel 2 Cab Switch	2	Invalid Data RPM 4 Channel 2 Switch Error	(PGN 65313 , Byte 3) indicates a value in the range of FCh to FEh Data erratic, intermittent or incorrect
33	520507	RPM 4 Channel 2 Overcurrent	6	RPM 4 Channel 2 Overcurrent	Current above normal or grounded circuit
33	520507	RPM 4 Channel 2 Overcurrent	14	RPM 4 Channel 2 Analog Input Data	RPM 4 Channel 2 Analog Input Data
33	520507	RPM 4 Channel 2 Overcurrent	19	Unavailable RPM 4 Channel 2 Analog Input	(PGN 65313 , Byte 4) indicates a value of FFh RPM 4 Channel 2 Analog Input Data
33	520508	RPM 4 Channel 3 Cab Switch	2	Invalid Data RPM 4 Channel 3 Switch Error	(PGN 65313 , Byte 4) indicates a value in the range of FCh to FEh Data erratic, intermittent or incorrect
33	520509	RPM 4 Channel 3 Overcurrent	6	RPM 4 Channel 3 Overcurrent	Current above normal or grounded circuit

33	520509	RPM 4 Channel 3 Overcurrent

33	520513	RPM 4 Channel 5 Overcurrent	14	RPM 4 Channel 5 Analog Input Data Unavailable	RPM 4 Channel 5 Analog Input Data (PGN 65313 , Byte 7) indicates a value of
33	520513	RPM 4 Channel 5 Overcurrent	19	RPM 4 Channel 5 Analog Input	FFh RPM 4 Channel 5 Analog Input Data
33	520514	RPM 4 Channel 6 Cab Switch	2	Invalid Data RPM 4 Channel 6 Switch Error	(PGN 65313 , Byte 7) indicates a value in the range of FCh to FEh Data erratic, intermittent or incorrect
33	520515	RPM 4 Channel 6 Overcurrent	6	RPM 4 Channel 6 Overcurrent	Current above normal or grounded circuit

33	520515	RPM 4 Channel 6 Overcurrent	14	RPM 4 Channel 6 Analog Input Data Unavailable	RPM 4 Channel 6 Analog Input Data (PGN 65313 , Byte 8) indicates a value of FFh
33	520515	RPM 4 Channel 6 Overcurrent	19	RPM 4 Channel 6 Analog Input Invalid Data	RPM 4 Channel 6 Analog Input Data (PGN 65313 , Byte 8) indicates a value in the range of FCh to FEh
33	520540	RPM 7 Channel 1 Cab Switch	2	RPM 7 Channel 1 Switch Error	Data erratic, intermittent or incorrect
33	520541	RPM 7 Channel 1 Overcurrent	6	RPM 7 Channel 1 Overcurrent	Current above normal or grounded circuit

33	520541	RPM 7 Channel 1 Overcurrent	14	RPM 7 Channel 1 Analog Input Data Unavailable	RPM 7 Channel 1 Analog Input Data (PGN 65313 , Byte 3) indicates a value of FFh
33	520541	RPM 7 Channel 1 Overcurrent	19	RPM 7 Channel 1 Analog Input Invalid Data	RPM 7 Channel 1 Analog Input Data (PGN 65313 , Byte 3) indicates a value in the range of FCh to FEh
33	520542	RPM 7 Channel 2 Cab Switch	2	RPM 7 Channel 2 Switch Error	Data erratic, intermittent or incorrect
33	520543	RPM 7 Channel 2 Overcurrent	6	RPM 7 Channel 2 Overcurrent	Current above normal or grounded circuit

33	520543	RPM 7 Channel 2 Overcurrent	14	RPM 7 Channel 2 Analog Input Data Unavailable	RPM 7 Channel 2 Analog Input Data (PGN 65313 , Byte 4) indicates a value of FFh
33	520543	RPM 7 Channel 2 Overcurrent	19	RPM 7 Channel 2 Analog Input Invalid Data	RPM 7 Channel 2 Analog Input Data (PGN 65313 , Byte 4) indicates a value in the range of FCh to FEh
33	520544	RPM 7 Channel 3 Cab Switch	2	RPM 7 Channel 3 Switch Error	Data erratic, intermittent or incorrect
33	520545	RPM 7 Channel 3 Overcurrent	6	RPM 7 Channel 3 Overcurrent	Current above normal or grounded circuit

33	520545	RPM 7 Channel 3 Overcurrent	14	RPM 7 Channel 3 Analog Input Data Unavailable	RPM 7 Channel 3 Analog Input Data (PGN 65313 , Byte 5) indicates a value of FFh
33	520545	RPM 7 Channel 3 Overcurrent	19	RPM 7 Channel 3 Analog Input Invalid Data	RPM 7 Channel 3 Analog Input Data (PGN 65313 , Byte 5) indicates a value in the range of FCh to FEh
33 33	520546 520547	RPM 7 Channel 4 Cab Switch RPM 7 Channel 4 Overcurrent	2 6	RPM 7 Channel 4 Switch Error RPM 7 Channel 4 Overcurrent	Data erratic, intermittent or incorrect Current above normal or grounded circuit

33	520547	RPM 7 Channel 4 Overcurrent
33	520547	RPM 7 Channel 4 Overcurrent	19	Unavailable RPM 7 Channel 4 Analog Input	(PGN 65313 , Byte 6) indicates a value of FFh RPM 7 Channel 4 Analog Input Data
33	520548	RPM 7 Channel 5 Cab Switch	2	Invalid Data RPM 7 Channel 5 Switch Error	(PGN 65313 , Byte 6) indicates a value in the range of FCh to FEh Data erratic, intermittent or incorrect
33	520549	RPM 7 Channel 5 Overcurrent	6	RPM 7 Channel 5 Overcurrent	Current above normal or grounded circuit
33	520549	RPM 7 Channel 5 Overcurrent	14	RPM 7 Channel 5 Analog Input Data	RPM 7 Channel 5 Analog Input Data
33	520549	RPM 7 Channel 5 Overcurrent	19	Unavailable RPM 7 Channel 5 Analog Input	(PGN 65313 , Byte 7) indicates a value of FFh RPM 7 Channel 5 Analog Input Data
33	520550	RPM 7 Channel 6 Cab Switch	2	Invalid Data RPM 7 Channel 6 Switch Error	(PGN 65313 , Byte 7) indicates a value in the range of FCh to FEh Data erratic, intermittent or incorrect
33	520551	RPM 7 Channel 6 Overcurrent	6	RPM 7 Channel 6 Overcurrent	Current above normal or grounded circuit

33	520551	RPM 7 Channel 6 Overcurrent
33	520551	RPM 7 Channel 6 Overcurrent	19	Unavailable RPM 7 Channel 6 Analog Input	(PGN 65313 , Byte 8) indicates a value of FFh RPM 7 Channel 6 Analog Input Data
33	520552	TEM Aux 1 Int Switch	2	Invalid Data TEM Aux 1 Int Switch Error	(PGN 65313 , Byte 8) indicates a value in the range of FCh to FEh Data erratic, intermittent or incorrect
33	520553	TEM Aux 1 Switch	2	TEM Aux 1 Switch Error	Data erratic, intermittent or incorrect
33 33	520554 520555	TEM Aux 1 With Interlocks Switch TEM Aux 10 Switch	2 2	TEM Aux 1 With Interlocks Switch Error TEM Aux 10 Switch Error	Data erratic, intermittent or incorrect Data erratic, intermittent or incorrect
33	520556	TEM Aux 11 Switch	2	TEM Aux 11 Switch Error	Data erratic, intermittent or incorrect
33	520557	TEM Aux 12 Switch	2	TEM Aux 12 Switch Error	Data erratic, intermittent or incorrect
33	520558	TEM Aux 13 Switch	2	TEM Aux 13 Switch Error	Data erratic, intermittent or incorrect
33	520559	TEM Aux 14 Switch	2	TEM Aux 14 Switch Error	Data erratic, intermittent or incorrect

33	520560	TEM Aux 15 Switch	2	TEM Aux 16 Switch Error	Data erratic, intermittent or incorrect
33	520561	TEM Aux 16 Switch	2	TEM Aux 16 Switch Error	Data erratic, intermittent or incorrect
33	520562	TEM Aux 17 Switch	2	TEM Aux 17 Switch Error	Data erratic, intermittent or incorrect
33	520563	TEM Aux 18 Switch	2	TEM Aux 18 Switch Error	Data erratic, intermittent or incorrect
33	520564	TEM Aux 2 Int Switch	2	TEM Aux 2 Int Switch Error	Data erratic, intermittent or incorrect
33	520565	TEM Aux 2 Switch	2	TEM Aux 2 Switch Error	Data erratic, intermittent or incorrect
33 33	520566 520567	TEM Aux 2 With Interlocks Switch TEM Aux 3 Int Switch	2 2	TEM Aux 2 With Interlocks Switch Error TEM Aux 3 Int Switch Error	Data erratic, intermittent or incorrect Data erratic, intermittent or incorrect
33	520568	TEM Aux 3 Switch	2	TEM Aux 3 Switch Error	Data erratic, intermittent or incorrect
33 33	520569 520570	TEM Aux 3 With Interlocks Switch TEM Aux 4 Switch	2 2	TEM Aux 3 With Interlocks Switch Error TEM Aux 4 Switch Error	Data erratic, intermittent or incorrect Data erratic, intermittent or incorrect
33 33	520571 520572	TEM Aux 4 With Interlocks Switch TEM Aux 5 Switch	2 2	TEM Aux 4 With Interlocks Switch Error TEM Aux 5 Switch Error	Data erratic, intermittent or incorrect Data erratic, intermittent or incorrect
33	520573	TEM Aux 6 Switch	2	TEM Aux 6 Switch Error	Data erratic, intermittent or incorrect
33	520574	TEM Aux 7 Switch	2	TEM Aux 7 Switch Error	Data erratic, intermittent or incorrect
33	520575	TEM Aux 8 Switch	2	TEM Aux 8 Switch Error	Data erratic, intermittent or incorrect
33	520576	TEM Aux 9 Switch	2	TEM Aux 9 Switch Error	Data erratic, intermittent or incorrect
33	520577	TEM Aux Solenoid 1	5	TEM Aux Solenoid 1 Under Current Or Open Circuit	Current below normal or open circuit
33	520577	TEM Aux Solenoid 1	6	TEM Aux Solenoid 1 Overcurrent	Current above normal or grounded circuit
33 33	520578 520579	TEM Aux Solenoid 1 Switch TEM Aux Solenoid 2	2 5	TEM Aux Solenoid 1 Switch Error TEM Aux Solenoid 2 Under Current	Data erratic, intermittent or incorrect Current below normal or open circuit
				Or Open Circuit
33	520579	TEM Aux Solenoid 2	6	TEM Aux Solenoid 2 Overcurrent	Current above normal or grounded circuit
33 33	520580 520581	TEM Aux Solenoid 2 Switch TEM Aux Solenoid 3	2 5	TEM Aux Solenoid 2 Switch Error TEM Aux Solenoid 3 Under Current	Data erratic, intermittent or incorrect Current below normal or open circuit
				Or Open Circuit
33	520581	TEM Aux Solenoid 3	6	TEM Aux Solenoid 3 Overcurrent	Current above normal or grounded circuit
33 33	520582 520583	TEM Aux Solenoid 3 Switch TEM Aux Solenoid 4	2 5	TEM Aux Solenoid 3 Switch Error TEM Aux Solenoid 4 Under Current	Data erratic, intermittent or incorrect Current below normal or open circuit
				Or Open Circuit
33	520583	TEM Aux Solenoid 4	6	TEM Aux Solenoid 4 Overcurrent	Current above normal or grounded circuit
33 33	520584 520585	TEM Aux Solenoid 4 Switch TEM Aux Solenoid 5	2 5	TEM Aux Solenoid 4 Switch Error TEM Aux Solenoid 5 Under Current	Data erratic, intermittent or incorrect Current below normal or open circuit
33	520585	TEM Aux Solenoid 5	6	Or Open Circuit TEM Aux Solenoid 5 Overcurrent	Current above normal or grounded circuit
33	520586	TEM Aux Solenoid 5 Switch	2	TEM Aux Solenoid 5 Switch Error	Data erratic, intermittent or incorrect
33	520587	TEM Aux Solenoid 6	5	TEM Aux Solenoid 6 Under Current	Current below normal or open circuit
33	520587	TEM Aux Solenoid 6	6	Or Open Circuit TEM Aux Solenoid 6 Overcurrent	Current above normal or grounded circuit
33	520588	TEM Aux Solenoid 6 Switch	2	TEM Aux Solenoid 6 Switch Error	Data erratic, intermittent or incorrect
33	520589	TEM Dual 1 Switch	2	TEM Dual 1 Switch Error	Data erratic, intermittent or incorrect
33 33	520590 520591	Data Link – Switch 12 Pack top Data Link – Switch 12 Pack bottom	9 9	Switch 12-Pack Top Data Link Comm. Failure Switch 12-Pack Bottom Data Link	Abnormal update rate Abnormal update rate
33	520604	5V Sensor Supply	0	Comm. Failure 5V Sensor Supply Above Normal	Data valid but above normal operational
33	520604	5V Sensor Supply	1	Range 5V Sensor Supply Below Normal	range – most severe level Data valid but below normal operational
33	520605	EGC Gauge Calibration	13	Range Electronic Gauge Cluster checksum	range – most severe level Defective EGC
33	520606	AGSP Gauge Calibration	13	error. AGSP checksum error.	Defective AGSP
33	520607	SIC Gauge Calibration	13	SIC checksum error.	Defective SIC
33 33	520644 520644	PPE3 AC Module Input Voltage PPE3 AC Module Input Voltage	3 4	AC Module Overvoltage condition on High Voltage DC Bus. AC Module Undervoltage condition	An Over Voltage Condition in the AC module (Inverter High Voltage Bus). An Under Voltage Condition in the AC	A high Battery Cutout fault has occurred and the source of the fault is the AC module (inverter high voltage bus). A low Battery Cutout fault has
33	520649	Air Horn Solenoid Command	5	on High Voltage DC Bus. Air Horn Undercurrent	module (Inverter High Voltage Bus). Open in Air Horn Circuit	occurred and the source of the fault is the AC module (inverter high voltage bus).
33 33	520649 520650	Air Horn Solenoid Command Air Horn Switch / Headlight Interrupt	6 0	Air Horn Overcurrent Headlight Interrupt, Marker Interrupt	Short To Ground or Overload in Air Horn Circuit AMH Request Circuit Open or Shorted		1600-B1
33	520650	Switch Air Horn Switch / Headlight Interrupt	1	and Air Horn Switch reading above normal range Headlight Interrupt, Marker Interrupt	High Short To Ground in AMH Request Circuit		1600-B1
		Switch		and Air Horn Switch reading below normal range

520651

520652

Air Shield Lights Command

Auxiliary High Current Load Relay

Command

520652

Auxiliary High Current Load Relay

520653

Command

Auxiliary High Current Load Switch

520654

Auxiliary Transmission Constant Supply Air Solenoid Command

Auxiliary Transmission Constant

520655

Supply Air Solenoid Command

Auxiliary Transmission High Range

520655

Air Solenoid Command

Auxiliary Transmission High Range

520656

Air Solenoid Command

Auxiliary Transmission Neutral Air

520656

Solenoid Command

Auxiliary Transmission Neutral Air

520657

Solenoid Command

Auxiliary Transmission Range Switch

520658

Body Equipment Hydraulic Power

520658

Auxiliary Pump Inhibit Command

Body Equipment Hydraulic Power

520659

Auxiliary Pump Inhibit Command Bus Amber Signal Light 1 Command

520659

Bus Amber Signal Light 1 Command

520660

Bus Amber Signal Light 2 Command

520661

Bus Amber Signal Light 3 Command

520661

Bus Amber Signal Light 3 Command

520662

Bus Amber Signal Light 4 Command

520662

Bus Amber Signal Light 4 Command

520663

Bus Red Signal Light 4 Command

520663

Bus Red Signal Light 4 Command

520664

Bus Crossing Gate Command

520664

Bus Crossing Gate Command

520665

Bus Passenger Door Close Relay Command

Bus Passenger Door Close Relay

520667

Command

Bus Passenger Door Control Switch

520667

Bus Passenger Door Control Switch 2

520668

Bus Passenger Door Open Relay Command

Bus Passenger Door Open Relay

520669

Command

Bus Red Signal Light 1 Command

520669

Bus Red Signal Light 1 Command

520670

Bus Red Signal Light 2 Command

520670

Bus Red Signal Light 2 Command

520671

Bus Red Signal Light 3 Command

520671

Bus Red Signal Light 3 Command

520672

Bus Stop Arm Command

520672

Bus Stop Arm Command

520673

Cab Dome Light 1 Command

520673

Cab Dome Light 1 Command

520674

Cab Dome Light 1 Switch

520675

Cab Dome Light 2 Command

520675

Cab Dome Light 2 Command

520676

Cab Dome Light 2 Switch

520677

Cab Floor Light Command

520677

Cab Floor Light Command

520678

Cab Window Motor 1 Status

520679

520680

Cab Window Motor 2 Status

Cab Window Motor 3 Status

Passenger Window Motor Failure

Rear Driver Window Motor Failure

Passenger Door Pod Module Window

Motor Has Short or Open or Window is Jammed

Rear Driver Door Pod Module Window

520681

Cab Window Motor 4 Status

Rear Passenger Window Motor

Motor Has Short or Open or Window is Jammed

Rear Passenger Door Pod Module

520682

Compression Brake Switch Indicator

Failure

Compression Brake Indicator output

Window Motor Has Short or Open or Window is Jammed

Current below normal or open circuit

Lamp Command

is Under Current Or Open Circuit

520682

520683

Compression Brake Switch Indicator Lamp Command

Door Control Module 1 Status

Compression Brake Indicator is over current

Driver Door Pod Module Failure

Current above normal or grounded circuit

Defective Driver Door Pod Module

520684

Door Control Module 2 Status

Passenger Door Pod Module Failure

Defective Passenger Door Pod Module

520685

Door Control Module 3 Status

Rear Driver Door Pod Module Failure

Defective Rear Driver Door Pod Module

520686

Door Control Module 4 Status

Rear Passenger Door Pod Module

Defective Rear Passenger Door Pod

520687

Engine Remote Start Command

Failure

Remote Start Relay Under Current

Module

Open Circuit in Remote Bunk Start Circuit

520687

Engine Remote Start Command

Or Open Circuit

Remote Start Relay Over Current

Short To Ground in Remote Bunk Start

520688

Engine Remote Stop Command

Remote Stop Relay Under Current

Circuit

Open Circuit in Remote Bunk Stop Circuit

520688

Engine Remote Stop Command

Or Open Circuit

Remote Stop Relay Over Current

Short To Ground in Remote Bunk Stop

520689

Exterior Lamp Check Switch

Exterior Lamp Check Switch Error

Circuit

Data erratic, intermittent or incorrect

520690

520691

Fifth Wheel Slide Latch Solenoid Command

Fog Light 2 Command

Fifth Wheel Slide Switch Error

Right Fog Light Undercurrent

Faulty Switch Actuator or Microswitch for Fifth Wheel Slide Switch

Open in Right Fog Light Circuit

520691

520692

Fog Light 2 Command

Fuel Transfer Pump Command

Right Fog Light Overcurrent

Fuel Transfer Pump Relay Under

Short To Ground or Overload in Right Fog Light Output Circuit

Open Circuit in Fuel Transfer Pump

520692

Fuel Transfer Pump Command

Current Or Open Circuit

Fuel Transfer Pump Relay Short To

Circuit

Short To Ground or Overload in Fuel

520693

Headlamp High Beam Command 1

Ground

Left High Beam Open Circuit

Transfer Pump Circuit

Open in Left High Beam Circuit

520693

520694

Headlamp High Beam Command 1

Headlamp High Beam Command 2

Left High Beam Short To Ground

Right High Beam Open Circuit

Short To Ground or Overload in Left High Beam Circuit

Open in Right High Beam Circuit

520694

520695

Headlamp High Beam Command 2

HVAC Mode Control Actuator

Right High Beam Short To Ground

HVAC Control Head Mode Fault

Short To Ground or Overload in Right High Beam Circuit

HVAC Motor in Wrong Position or

520696

HVAC Recirculation Door Control

DM1

HVAC Control Head Air Inlet DM1

Jammed

HVAC Motor in Wrong Position or

520697

Actuator

HVAC System Controller

HVAC Control Head Circuit Failed To

Jammed

Abnormal update rate

520698

Ignition Signal

Communicate With The BC Key State Ignition Signal Error

Open in Ignition Signal Input Circuit To BC

520703

Lift Gate Power Control Enable Command

Lift Gate Power Control Enable

Lift Gate Enable Undercurrent

Lift Gate Enable Overcurrent

Current below normal or open circuit

Current above normal or grounded circuit

520704

Command

Lift Gate Power Control Switch

Lift Gate Switch Error

Data erratic, intermittent or incorrect

520705

Load Shed OFF Command

Load Shed OFF Relay Under Current Or Open Circuit

Load Shed OFF Relay Over Current

Open Circuit in Load Shed OFF Circuit

Short To Ground in Load Shed OFF

520706

Load Shed ON Command

Load Shed ON Relay Under Current

Circuit

Open Circuit in Load Shed ON Circuit

520706

Load Shed ON Command

Or Open Circuit

Load Shed ON Relay Over Current

Short To Ground in Load Shed ON Circuit

520707

520708

Loop Time Exceeded

Marker Interrupt Switch

BC Internal Fault, Main Loop Time Exceeded

Marker Interrupt Switch Failure

Software Configuration Too Big

Data erratic, intermittent or incorrect

520709

Mirror Heat 2 Command

Right Mirror Heat Undercurrent

Open in Right Mirror Heat Circuit

520709

520711

Mirror Heat 2 Command

Primary Air Tank Drain Valve

Right Mirror Heat Overcurrent

Humphrey Valve Primary Tank

Short To Ground or Overload in Right Mirror Heat Circuit

Current below normal or open circuit

520711

Actuator Command

Primary Air Tank Drain Valve

Solenoid Under Current Or Open Circuit

Humphrey Valve Primary Tank

Current above normal or grounded circuit

520712

Actuator Command

Primary Tank Drain Valve Switch

Solenoid Short To Ground

Humphrey Valve Primary Tank

Data erratic, intermittent or incorrect

520713

Rear HVAC Blower Speed Control

Switch Error

Rear HVAC Blower Speed Control

Faulty Switch Actuator or Microswitch for

Switch

Switch Error

Rear HVAC Blower Speed Control Switch

520714

Rear HVAC Temperature Control Switch

Rear HVAC Temperature Control Switch Error

Faulty Switch Actuator or Microswitch for Rear HVAC Temperature Control Switch

520715

Secondary Tank Drain Valve Actuator Command

Secondary Tank Drain Valve

Humphrey Valve Secondary Tank Solenoid Under Current Or Open Circuit

Humphrey Valve Secondary Tank

Current below normal or open circuit

Current above normal or grounded circuit

520716

Actuator Command

Secondary Tank Drain Valve Switch

Solenoid Short To Ground

Humphrey Valve Secondary Tank

Data erratic, intermittent or incorrect

520720

Snow Plow Light Left Forward

Switch Error

Left Plow Light Relay Under Current

Current below normal or open circuit

520720

Lighting Relay Command

Snow Plow Light Left Forward

Or Open Circuit

Left Plow Light Relay Circuit Short

Current above normal or grounded circuit

520721

Lighting Relay Command

Snow Plow Light Right Forward

To Ground

Right Plow Light Relay Under

Current below normal or open circuit

520721

Lighting Relay Command

Snow Plow Light Right Forward

Current Or Open Circuit

Right Plow Light Relay Circuit Short

Current above normal or grounded circuit

Lighting Relay Command

To Ground

520722

Snow Plow Lighting Mode Switch 2

Snow Plow Switch Error

Data erratic, intermittent or incorrect

520725

Supply Air Tank Drain Valve Actuator 5 Command

Humphrey Valve Wet Tank Solenoid Under Current Or Open Circuit

Current below normal or open circuit

520725

520726

Supply Air Tank Drain Valve Actuator 6 Command

Supply Air Tank Drain Valve Switch 2

Humphrey Valve Wet Tank Solenoid Short To Ground

Humphrey Valve Wet Tank Switch

Current above normal or grounded circuit

Data erratic, intermittent or incorrect

520727

Trailer Auxiliary Power Switch 2

Error

Auxiliary Switch Error

Faulty Switch Actuator or Micro switch for

520728

Trailer Left Turn Light Relay 5

Trailer Left Turn Lamp Relay Under

Auxiliary Trailer Switch

Open Circuit in Trailer Left Turn Lamp

520728

Command

Trailer Left Turn Light Relay 6

Current Or Open Circuit

Trailer Left Turn Lamp Relay Over

Circuit

Short To Ground in Trailer Left Turn

520729

Command

Trailer License Plate Light Relay 5

Current

Trailer License Plate Lamp Relay

Lamp Circuit

Open Circuit in Trailer License Plate

520729

Command

Trailer License Plate Light Relay 6

Under Current Or Open Circuit

Trailer License Plate Lamp Relay

Lamp Circuit

Short To Ground in Trailer License Plate

520730

Command

Trailer Marker Light Relay Command 5

Over Current

Trailer Marker Lamp Relay Under

Lamp Circuit

Open Circuit in Trailer Marker Lamp

520730

Trailer Marker Light Relay Command 6

Current Or Open Circuit

Trailer Marker Lamp Relay Over

Circuit

Short To Ground in Trailer Marker Lamp

520731

Trailer Right Turn Light Relay 5

Current

Trailer Right Turn Lamp Relay Under

Circuit

Open Circuit in Trailer Right Turn Lamp

520731

Command

Trailer Right Turn Light Relay 6

Current Or Open Circuit

Trailer Right Turn Lamp Relay Over

Circuit

Short To Ground in Trailer Right Turn

520732

Command

Trailer Stop Light Relay Command 5

Current

Trailer Stop Lamp Relay Under

Lamp Circuit

Open Circuit in Trailer Stop Lamp Circuit

520732

Trailer Stop Light Relay Command 6

Current Or Open Circuit

Trailer Stop Lamp Relay Over

Short To Ground in Trailer Stop Lamp

520733

Transfer Case Blower Switch 2

Current

Transfer Case Switch Error

Circuit

Data erratic, intermittent or incorrect

520734

Transfer Case Front Driveline 5

Transfer Case Solenoid D Under

Current below normal or open circuit

520734

Solenoid Command

Transfer Case Front Driveline 6

Current Or Open Circuit

Transfer Case Solenoid D Short To

Current above normal or grounded circuit

520735

Solenoid Command

Transfer Case High Range Solenoid 5

Ground

Transfer Case Solenoid C Under

Current below normal or open circuit

520735

Command

Transfer Case High Range Solenoid 6

Current Or Open Circuit

Transfer Case Solenoid C Short To

Current above normal or grounded circuit

520736

Command

Transfer Case Low Range Solenoid 5

Ground

Transfer Case Solenoid A Under

Current below normal or open circuit

520736

Command

Transfer Case Low Range Solenoid 6

Current Or Open Circuit

Transfer Case Solenoid A Short To

Current above normal or grounded circuit

520737

Command

Transfer Case Neutral Solenoid 5

Ground

Transfer Case Solenoid B Under

Current below normal or open circuit

520737

Command

Transfer Case Neutral Solenoid 6

Current Or Open Circuit

Transfer Case Solenoid B Short To

Current above normal or grounded circuit

520738

Command

Transfer Case PTO Solenoid 5

Ground

Air Solenoid B Packs Relay Under

Current below normal or open circuit

520738

Command

Transfer Case PTO Solenoid 6

Current Or Open Circuit

Air Solenoid B Packs Relay Over

Current above normal or grounded circuit

520739

Command

Transfer Case PTO Solenoid Relay 5

Current

Transfer Case PTO Solenoid Under

Current below normal or open circuit

520739

Command

Transfer Case PTO Solenoid Relay 6

Current Or Open Circuit

Transfer Case PTO Solenoid Short

Current above normal or grounded circuit

520740

Command

Transfer Case PTO Switch 2

To Ground

Transfer Case PTO Switch Error

Data erratic, intermittent or incorrect

520741

Transfer Case Range Switch 2

Transfer Case Switch Error

Data erratic, intermittent or incorrect

520742

Transfer Case Rear Driveline 5

Solenoid Command

Transfer Case Rear Driveline 6

Air Solenoid A Packs Relay Under Current Or Open Circuit

Air Solenoid A Packs Relay Over

Current below normal or open circuit

Current above normal or grounded circuit

520743

Solenoid Command

Transmission PTO Engagement 5

Current

TEM PTO Engagement Relay Under

Current below normal or open circuit

520743

Actuator Command

Transmission PTO Engagement 6

Current Or Open Circuit

TEM PTO Engagement Relay

Current above normal or grounded circuit

520744

Actuator Command

Transmission PTO Retention 5

Overcurrent

TEM PTO Retaining Solenoid

Current below normal or open circuit

520744

Actuator Command

Transmission PTO Retention 6

Undercurrent

TEM PTO Retaining Solenoid

Current above normal or grounded circuit

520745

Actuator Command

Transmission PTO Switch 2

Overcurrent

TEM PTO Engagement Switch Error

Data erratic, intermittent or incorrect

520746

Transmission Retarder Enable 2

Transmission Retarder On/Off switch

Data erratic, intermittent or incorrect

520747

Switch

Two Speed Axle Actuator 5

Failure

Two Speed Axle Solenoid Relay

Current below normal or open circuit

520747

Two Speed Axle Actuator 6

Under Current Or Open Circuit

Two Speed Axle Solenoid Relay

Current above normal or grounded circuit

520748

Wiper Motor Power 5

Short To Ground

Wiper Motor Undercurrent

Open in Wiper Motor Circuit

520748

520749

Wiper Motor Power 6

Mirror Heater 2

Wiper Motor Overcurrent

Mirror Heat Switch Error

Short To Ground or Overload in Wiper Motor Circuit

Faulty Switch Actuator or Microswitch for

520750

Fog Lights Left Command 5

Left Fog Light Undercurrent

Mirror Heat Switch

Open in Left Fog Light Circuit

520750

520751

Fog Lights Left Command 6

ICON Freedomline Gear Indicator 5

Left Fog Light Overcurrent

ICON Freedomline Gear Indicator

Short To Ground or Overload in Left Fog Light Circuit

Open Circuit in ICON Freedomline Gear

1601-F9

520751

ICON Freedomline Gear Indicator 6

Relay Under Current

ICON Freedomline Gear Indicator

Indicator Circuit

Short To Ground in ICON Freedomline

1601-F9

520752

Electrical Accessory Power Switch 2

Relay Over Current

Electrical Accessory Power Switch

Gear Indicator Circuit

Faulty Switch Actuator or Microswitch for

520753

Transmission Economy Mode Switch 2

Error

Transmission Economy Mode Switch

Electrical Accessory Power Switch

Faulty Switch Actuator or Microswitch for

Error

Transmission Economy Mode Switch

520754

Universal Air Solenoid Relay Driver 2 5 Universal Air Solenoid Relay Driver 2 Open Circuit or Defective Solenoid Under Current Or Open Circuit

Universal Air Solenoid Relay Driver 2 6 Universal Air Solenoid Relay Driver 2 Short To Ground or Defective Solenoid

520755

Over Current

Universal Air Solenoid Relay Driver 3 5 Universal Air Solenoid Relay Driver 3 Open Circuit or Defective Solenoid

Under Current Or Open Circuit

33	520755	Universal Air Solenoid Relay Driver 3	6	Universal Air Solenoid Relay Driver 3	Short To Ground or Defective Solenoid
				Over Current
33	520756	Universal Air Solenoid Relay Driver 4	5	Universal Air Solenoid Relay Driver 4	Open Circuit or Defective Solenoid
				Under Current Or Open Circuit
33	520756	Universal Air Solenoid Relay Driver 4	6	Universal Air Solenoid Relay Driver 4	Short To Ground or Defective Solenoid
				Over Current
33	520757	Universal Air Solenoid Relay Driver 5	5	Universal Air Solenoid Relay Driver 5	Open Circuit or Defective Solenoid
				Under Current Or Open Circuit
33	520757	Universal Air Solenoid Relay Driver 5	6	Universal Air Solenoid Relay Driver 5	Short To Ground or Defective Solenoid
				Over Current
33	520758	Universal Air Solenoid Relay Driver 6	5	Universal Air Solenoid Relay Driver 6	Open Circuit or Defective Solenoid
				Under Current Or Open Circuit
33	520758	Universal Air Solenoid Relay Driver 6	6	Universal Air Solenoid Relay Driver 6	Short To Ground or Defective Solenoid
				Over Current
33	520759	Universal Air Solenoid Relay Driver 7	5	Universal Air Solenoid Relay Driver 7	Open Circuit or Defective Solenoid
				Under Current Or Open Circuit
33	520759	Universal Air Solenoid Relay Driver 7	6	Universal Air Solenoid Relay Driver 7	Short To Ground or Defective Solenoid
				Over Current
33	520760	Universal Air Solenoid Relay Driver 8	5	Universal Air Solenoid Relay Driver 8	Open Circuit or Defective Solenoid
				Under Current Or Open Circuit
33	520760	Universal Air Solenoid Relay Driver 8	6	Universal Air Solenoid Relay Driver 8	Short To Ground or Defective Solenoid
				Over Current
33	520761	Universal Air Solenoid Relay Driver 9	5	Universal Air Solenoid Relay Driver 9	Open Circuit or Defective Solenoid
				Under Current Or Open Circuit
33	520761	Universal Air Solenoid Relay Driver 9	6	Universal Air Solenoid Relay Driver 9	Short To Ground or Defective Solenoid
				Over Current
33	520762	Universal Air Solenoid Relay Driver	5	Universal Air Solenoid Relay Driver	Open Circuit or Defective Solenoid
		10		10 Under Current Or Open Circuit
33	520762	Universal Air Solenoid Relay Driver	6	Universal Air Solenoid Relay Driver	Short To Ground or Defective Solenoid
		10		10 Over Current
33	520763	Universal Air Solenoid Relay Driver	5	Universal Air Solenoid Relay Driver	Open Circuit or Defective Solenoid
		11		11 Under Current Or Open Circuit
33	520763	Universal Air Solenoid Relay Driver	6	Universal Air Solenoid Relay Driver	Short To Ground or Defective Solenoid
		11		11 Over Current
33	520764	Universal Air Solenoid Relay Driver	5	Universal Air Solenoid Relay Driver	Open Circuit or Defective Solenoid
		12		12 Under Current Or Open Circuit
33	520764	Universal Air Solenoid Relay Driver	6	Universal Air Solenoid Relay Driver	Short To Ground or Defective Solenoid
		12		12 Over Current
33	520765	Universal Air Solenoid Relay Driver	5	Universal Air Solenoid Relay Driver	Open Circuit or Defective Solenoid
		13		13 or Spare Relay Driver 4 Under
				Current Or Open Circuit
33	520765	Universal Air Solenoid Relay Driver	6	Universal Air Solenoid Relay Driver	Short To Ground or Defective Solenoid
		13		13 or Spare Relay Driver 4 Over
				Current
33	520766	Universal Air Solenoid Relay Driver	5	Universal Air Solenoid Relay Driver	Open Circuit or Defective Solenoid
		14		14 or Spare Relay Driver 3 Under
				Current Or Open Circuit
33	520766	Universal Air Solenoid Relay Driver	6	Universal Air Solenoid Relay Driver	Short To Ground or Defective Solenoid
		14		14 or Spare Relay Driver 3 Over
				Current
33	520767	Universal Air Solenoid Relay Driver	5	Universal Air Solenoid Relay Driver	Open Circuit or Defective Solenoid
		15		15 Under Current Or Open Circuit
33	520767	Universal Air Solenoid Relay Driver	6	Universal Air Solenoid Relay Driver	Short To Ground or Defective Solenoid
		15		15 Over Current
33	520768	Universal Air Solenoid Relay Driver	5	Universal Air Solenoid Relay Driver	Open Circuit or Defective Solenoid
		16		16 Under Current Or Open Circuit
33	520768	Universal Air Solenoid Relay Driver	6	Universal Air Solenoid Relay Driver	Short To Ground or Defective Solenoid
		16		16 Over Current
33	520769	BUS Spare Relay Driver One	5	Spare Relay Driver One Under	Open Circuit
				Current Or Open Circuit
33	520769	BUS Spare Relay Driver One	6	Spare Relay Driver One Over	Short To Ground
				Current
33	520770	BUS Spare Relay Driver Two	5	Spare Relay Driver Two Under	Open Circuit
				Current Or Open Circuit
33	520770	BUS Spare Relay Driver Two	6	Spare Relay Driver Two Over	Short To Ground
				Current
33	520771	PPE3 AC Module Output Current	6	AC Module has shutdown due to	A Surge may have occurred for a while in An Overload condition has been
				overload condition.	the Vehicle AC bus for a long time (The detected in the AC module and the
					inverter supplies additional current to the Vehicle AC bus is shutdown.
					load).
33	520772	PPE3 Fuse Open	31	PPE3 Fuse Open.	Load exceeded rating. PPE3 module Fuse is Open.
33	520773	PPE3 AC Module Temperature	0	AC module over temperature	An overcurrent condition in the Vehicle AC An Over temperature fault has
				condition.	Bus might have caused an over occurred and the source of the fault
					temperature. is the AC module (inverter high
					voltage bus).
33	520774	PPE3 DC Module Temperature	0	DC module over temperature	An overcurrent condition in the Vehicle DC An Over Temperature fault has
				condition.	Bus might have caused an over occurred and the source of the fault
					temperature. is the DC regulator (Vehicle Battery
					Bus).
33	520775	Anti Theft Ignition Relay	5	Anti Theft Ignition Relay Under	Open circuit in Anti Theft Ignition Circuit	1601-E4
				Current Or Open Circuit
33	520775	Anti Theft Ignition Relay	6	Anti Theft Ignition Relay over current	Short to Ground in Anti Theft Ignition	1601-E4
					Circuit
33	520776	Anti Theft Engine Stop Switch	2	Anti Theft Engine Stop Switch Error	Faulty Switch Actuator or Microswitch for
					Anti Theft Engine Stop Switch
33	520777	Anti Theft Switch 0	2	Anti Theft Switch 0 Error	Faulty Switch Actuator or Microswitch for
					Anti Theft Switch 0
33	520778	Anti Theft Switch 1	2	Anti Theft Switch 1 Error	Faulty Switch Actuator or Microswitch for
					Anti Theft Switch 1
33	520779	Anti Theft Switch 2	2	Anti Theft Switch 2 Error	Faulty Switch Actuator or Microswitch for
					Anti Theft Switch 2
33	520780	Anti Theft Switch 3	2	Anti Theft Switch 3 Error	Faulty Switch Actuator or Microswitch for
					Anti Theft Switch 3
33	520781	Anti Theft Switch 4	2	Anti Theft Switch 4 Error	Faulty Switch Actuator or Microswitch for
					Anti Theft Switch 4
33	520788	TEG Aux Relay Driver 1	5	TEG Aux Relay Driver Output 1	Current below normal or open circuit	1601-E16
				Under Current Or Open Circuit
33	520788	TEG Aux Relay Driver 1	6	TEG Aux Relay Driver Output 1	Current above normal or grounded circuit	1601-E16
				Overcurrent
33	520799	TEG Aux Relay Driver 2	5	TEG Aux Relay Driver Output 2	Current below normal or open circuit	1601-E12
				Under Current Or Open Circuit
33	520799	TEG Aux Relay Driver 2	6	TEG Aux Relay Driver Output 2	Current above normal or grounded circuit	1601-E12
				Overcurrent

520800

Transmission Economy Mode output

Transmission Economy Mode Relay

Driver Output Under Current Or Open Circuit

Transmission Economy Mode Relay

Current below normal or open circuit

Current above normal or grounded circuit

1601-F11

520801

Transmission Auto Neutral Output

Driver Output Overcurrent

Transmission Auto Neutral Relay

Current below normal or open circuit

1601-E3

520801

Transmission Auto Neutral Output

Driver Output Under Current Or Open Circuit

Transmission Auto Neutral Relay

Current above normal or grounded circuit

1601-E3

520802

Aux Air Susp Solenoid Command

Driver Output Overcurrent

Aux Air Suspension Solenoid Under

Open Circuit or Defective Solenoid

1602-E12

520802

Aux Air Susp Solenoid Command

Current or Open Circuit

Aux Air Suspension Solenoid output

Short To Ground or Defective Solenoid

1602-E12

520803

Park Brake Relay Command

Over Current

Park Brake Relay Under Current or

Open Circuit or Defective Solenoid

1601-E7

520803

Park Brake Relay Command

Open Circuit

Park Brake Relay Over Current

Short To Ground or Defective Solenoid

1601-F1

(BUS) 1601-E7

520804

RKE Option Door Pod Not Present

Missing Remote Keyless entry door

Expected RKE door pod is not present or

Not available

1601-F1 (BUS)

Not

pod

in the wrong slot or bad door pod harness

available

520806

Fifth Wheel Jaw Unlock Sol2 Command

Fifth Wheel Jaw Unlock Solenoid2 output Under Current or Open Circuit

Open Circuit or Defective Solenoid

520806

520807

Fifth Wheel Jaw Unlock Sol2 Command

Engine RPM Interrupt Output

Fifth Wheel Jaw Unlock Solenoid2 output Overcurrent

Engine RPM Interrupt Relay Driver

Short To Ground or Defective Solenoid

Current below normal or open circuit

1601-F3

520807

Engine RPM Interrupt Output

Output Under Current Or Open Circuit

Engine RPM Interrupt Relay Driver

Current above normal or grounded circuit

1601-F3

520813

Aux_Relay_Driver_3

Output Overcurrent

Relay Driver 3 Undercurrent

Open in Relay Driver 3 Circuit

1601-E3

520813

520814

Aux_Relay_Driver_3

Aux_Relay_Driver_4

Relay Driver 3 Overcurrent

Relay Driver 4 Undercurrent

Short To Ground or Overload in Relay Driver 3 Output Circuit

Open in Relay Driver 4 Circuit

1601-E3

1601-E4

520814

520815

Aux_Relay_Driver_4

Sixth Gear Disable Relay

Relay Driver 4 Overcurrent

Sixth Speed Disable Relay is

Short To Ground or Overload in Relay Driver 4 Output Circuit

Open Circuit on the Sixth Gear Disable

1601-E4

520815

Sixth Gear Disable Relay

Undercurrent or Open Circuit

Sixth Speed Disable Relay is

Relay

Short to Battery on the Sixth Speed

520816

Sixth Gear Disable LED

Overcurrent

Sixth Gear Disable LED Relay Driver

Disable Relay

Open Circuit on the Sixth Gear Disable

520816

Sixth Gear Disable LED

Output is Under Current or Open Circuit

Sixth Gear Disable LED Relay Driver

LED Relay Driver

Short to Battery on the Sixth Speed

520817

Sixth Gear Disable Switch

Output is Over Current

Sixth Speed Disable Switch status is

Disable LED Relay

Fault Switch Actuator or Micro switch for

520818

HEV ePTO Pressure Feedback

invalid

HEV ePTO Pressure Feedback

Sensor reading above normal range

High or faulty sensor system

520818

520819

HEV ePTO Pressure Feedback

Universal Air Solenoid Relay Driver 1

HEV ePTO Pressure Feedback Sensor reading below normal range

Universal Air Solenoid Relay Driver 1

HEV ePTO Pressure Feedback Shorted to Ground or Open Circuit or faulty sensor system

Open Circuit or Defective Solenoid

520819

Universal Air Solenoid Relay Driver 1

Under Current Or Open Circuit

Universal Air Solenoid Relay Driver 1

Short To Ground or Defective Solenoid

520820

Wig-Wag Switch

Over Current

Wig-Wag Switch Error

Faulty Switch Actuator or Microswitch for

520822

Remote Condenser Electric Fan

Electric Fan A output Under Current

Wig-Wag Switch

Open Circuit in Electric Fan A output

Not available

Not

520822

Control A

Remote Condenser Electric Fan

or Open Circuit

Electric Fan A output Short-Circuit

Short circuit detected in Electric Fan A

Electric Fan A can be configured for

available

Not

520823

Control A

Remote Condenser Electric Fan

Electric Fan B output Under Current

output

Open Circuit in Electric Fan B output

two different outputs:

Low Side Driver RD4 – Fault is reported when Short to Battery condition is detected

High Side Driver RD31 – Fault is reported when Short to Ground condition is Detected

Not available

available

Not

520823

Control B

Remote Condenser Electric Fan

or Open Circuit

Electric Fan B output Short-Circuit

Short circuit detected in Electric Fan B

Electric Fan B can be configured for

available

Not

520839

Control B

Transfer Case Output Shaft

output

Open in Odometer Shutoff Relay Circuit

two different outputs:

Low Side Driver RD7 – Fault is reported when Short to Battery condition is detected

High Side Driver RD32 – Fault is reported when Short to Ground condition is Detected

available

520839

Odometer Shutoff Relay

Transfer Case Output Shaft

Odometer Shutoff Relay Undercurrent

Transfer Case Output Shaft

Short or Overload in odometer Shutoff

1601-E4

Odometer Shutoff Relay

Odometer Shutoff Relay Overcurrent

Relay Circuit

520840

520841

Switch 12-Pack Location 7

Switch 12-Pack Location 8

Unexpected switch in 12-pack (MID

5) bottom row position 1 from left (Switch 7 of 12)

Unexpected switch in 12-pack (MID

Switch actuator installed or bad microswitch in location configured as empty

Switch actuator installed or bad

Not available

Not

520842

Switch 12-Pack Location 9

5) bottom row position 2 from left (Switch 8 of 12)

Unexpected switch in 12-pack (MID

microswitch in location configured as empty

Switch actuator installed or bad

Not available

available

Not

520843

Switch 12-Pack Location 10

5) bottom row position 3 from left (Switch 9 of 12)

Unexpected switch in 12-pack (MID

microswitch in location configured as empty

Switch actuator installed or bad

Not available

available

Not

520844

Switch 12-Pack Location 11

5) bottom row position 4 from left (Switch 10 of 12)

Unexpected switch in 12-pack (MID

microswitch in location configured as empty

Switch actuator installed or bad

Not available

available

Not

5) bottom row position 5 from left

(Switch 11 of 12)

microswitch in location configured as

empty

available

520845

Switch 12-Pack Location 12

Unexpected switch in 12-pack (MID

5) bottom row position 6 from left (Switch 12 of 12)

Switch actuator installed or bad

microswitch in location configured as empty

Not available

Not

available

520846

520847

Switch 12-Pack Location 1

Switch 12-Pack Location 2

Unexpected switch in 12-pack (MID

6) top row position 1 from left (Switch 1 of 12)

Unexpected switch in 12-pack (MID

Switch actuator installed or bad microswitch in location configured as empty

Switch actuator installed or bad

Not available

Not

520848

Switch 12-Pack Location 3

6) top row position 2 from left (Switch 2 of 12)

Unexpected switch in 12-pack (MID

microswitch in location configured as empty

Switch actuator installed or bad

Not available

available

Not

520849

Switch 12-Pack Location 4

6) top row position 3 from left (Switch 3 of 12)

Unexpected switch in 12-pack (MID

microswitch in location configured as empty

Switch actuator installed or bad

Not available

available

Not

520850

Switch 12-Pack Location 5

6) top row position 4 from left (Switch 4 of 12)

Unexpected switch in 12-pack (MID

microswitch in location configured as empty

Switch actuator installed or bad

Not available

available

Not

520851

Switch 12-Pack Location 6

6) top row position 5 from left (Switch 5 of 12)

Unexpected switch in 12-pack (MID

microswitch in location configured as empty

Switch actuator installed or bad

Not available

available

Not

520852

Switch 6-Pack #2 Location 1

6) top row position 6 from left (Switch 6 of 12)

Unexpected switch in switchpack 2

microswitch in location configured as empty

Switch actuator installed or bad

Not available

available

Not

520853

Switch 6-Pack #2 Location 2

(MID 7) position 1 from left (Switch 1

of 6)

Unexpected switch in switchpack 2

microswitch in location configured as empty

Switch actuator installed or bad

Not available

available

Not

520854

Switch 6-Pack #2 Location 3

(MID 7) position 2 from left (Switch 2

of 6)

Unexpected switch in switchpack 2

microswitch in location configured as empty

Switch actuator installed or bad

Not available

available

Not

520855

Switch 6-Pack #2 Location 4

(MID 7) position 3 from left (Switch 3

of 6)

Unexpected switch in switchpack 2

microswitch in location configured as empty

Switch actuator installed or bad

Not available

available

Not

520856

Switch 6-Pack #2 Location 5

(MID 7) position 4 from left (Switch 4

of 6)

Unexpected switch in switchpack 2

microswitch in location configured as empty

Switch actuator installed or bad

Not available

available

Not

520857

Switch 6-Pack #2 Location 6

(MID 7) position 5 from left (Switch 5

of 6)

Unexpected switch in switchpack 2

microswitch in location configured as empty

Switch actuator installed or bad

Not available

available

Not

520858

Switch 6-Pack #1 Location 1

(MID 7) position 6 from left (Switch 6

of 6)

Unexpected switch in switchpack 1

microswitch in location configured as empty

Switch actuator installed or bad

Not available

available

Not

520859

Switch 6-Pack #1 Location 2

(MID 15) position 1 from left (Switch 1 of 6)

Unexpected switch in switchpack 1

microswitch in location configured as empty

Switch actuator installed or bad

Not available

available

Not

520860

Switch 6-Pack #1 Location 3

(MID 15) position 2 from left (Switch 2 of 6)

Unexpected switch in switchpack 1

microswitch in location configured as empty

Switch actuator installed or bad

Not available

available

Not

520861

Switch 6-Pack #1 Location 4

(MID 15) position 3 from left (Switch 3 of 6)

Unexpected switch in switchpack 1

microswitch in location configured as empty

Switch actuator installed or bad

Not available

available

Not

520862

Switch 6-Pack #1 Location 5

(MID 15) position 4 from left (Switch 4 of 6)

Unexpected switch in switchpack 1

microswitch in location configured as empty

Switch actuator installed or bad

Not available

available

Not

520863

Switch 6-Pack #1 Location 6

(MID 15) position 5 from left (Switch 5 of 6)

Unexpected switch in switchpack 1

microswitch in location configured as empty

Switch actuator installed or bad

Not available

available

Not

520864

Rear Axle Load Distribution Switch

(MID 15) position 6 from left (Switch 6 of 6)

Rear Axle Load Distribution Switch

microswitch in location configured as empty

Faulty Switch Actuator or Microswitch for

Not available

available

Not

520865

Rear Axle Load Distribution Solenoid

Error

Rear Axle Load Distribution A Relay

Rear Axle Load Distribution Switch

Open Circuit or Defective Solenoid

Not available

available

Not

Under Current Or Open Circuit

available

520865

520866

Rear Axle Load Distribution Solenoid A

Rear Axle Load Distribution Solenoid

Rear Axle Load Distribution A Relay Short To Ground

Rear Axle Load Distribution B Relay

Short To Ground or Defective Solenoid

Open Circuit or Defective Solenoid

Not available

Not available Not

Under Current Or Open Circuit

available

520866

520867

Rear Axle Load Distribution Solenoid B

Snow Valve Motor Relays

Rear Axle Load Distribution B Relay Short To Ground

Snow Valve Motor Relays Output

Short To Ground or Defective Solenoid

Short to Ground or Defective Relay(s)

Not available

Not available Not

520868

HVAC Condenser Pusher Fan Relay

Over Current

HVAC Condenser Pusher Fan

Open Circuit on HVAC Condenser Pusher

Not available

available

Not

520868

HVAC Condenser Pusher Fan Relay

Output Under Current or Open Circuit

HVAC Condenser Pusher Fan

Fan circuit

Short to Ground in the HVAC Condenser

Not available

available

Not

520869

Trailer BO Stop

Output Over Current

Trailer BO Stop Overcurrent

Pusher Fan circuit

Current above normal or grounded circuit

Not available

available 1601-F9

520870

Trailer BO Marker

Trailer BO Marker Overcurrent

Current above normal or grounded circuit

Not available

1601-E14

520871

BO Ignition_1

BO Ignition_1 Overcurrent

Current above normal or grounded circuit

Not available

1601-E16

520872

BO Ignition_2

BO Ignition_2 Overcurrent

Current above normal or grounded circuit

Not available

1601-F1

520873

BO Ignition_3

BO Ignition_3 Overcurrent

Current above normal or grounded circuit

Not available

1601-E1

520874

BO Ignition_4

BO Ignition_4 Overcurrent

Current above normal or grounded circuit

Not available

1601-E2

520875

520876

Winch IN / OUT Switch

Winch IN Command

Winch IN OUT Switch Error

Winch IN relay driver under current

Faulty Switch Actuator or Microswitch for Winch IN OUT Switch

Current below normal or open circuit

Not available

Not available Not

520876

Winch IN Command

or open circuit

Winch IN relay driver over current

Current above normal or grounded circuit

Not available

available

Not

520877

Winch OUT Command

Winch OUT relay driver under

Current below normal or open circuit

Not available

available

Not

520877

Winch OUT Command

current or open circuit

Winch OUT relay driver over current

Current above normal or grounded circuit

Not available

available

Not

520878

NEC Park Brake Command

NEC Park Brake Command is Under

Open Circuit or Defective Solenoid

Not available

available

Not

520878

NEC Park Brake Command

Current Or Open Circuit

NEC Park Brake Command is

Short To Ground or Defective Solenoid

Not available

available

Not

overcurrent

available

520879

NEC Service Door Command 5

NEC Service Door Command 6

NEC Service Door Command is Open Circuit or Defective Solenoid Not available

Under Current Or Open Circuit

NEC Service Door Command is Short To Ground or Defective Solenoid Not available

Not

available Not

520880

NEC Post Trip Inspection Command 5

overcurrent

NEC Post Trip Inspection Command Open Circuit or Defective Solenoid Not available

available

Not

is Under Current Or Open Circuit

available

520880

520881

NEC Post Trip Inspection Command 6

TEM Interlocked Switch Relay 1 5

NEC Post Trip Inspection Command Short To Ground or Defective Solenoid Not available is overcurrent

TEM Switch Interlocked Output Open circuit in TEM Interlocked circuit 1 Not available

Not available Not

520881

TEM Interlocked Switch Relay 1 6

Circuit 1 undercurrent

TEM Switch Interlocked Output Short circuit in TEM Interlocked circuit 1 Not available

available

Not

520882

TEM Interlocked Switch Relay 2 5

Circuit 1 overcurrent

TEM Switch Interlocked Output Open circuit in TEM Interlocked circuit 2 Not available

available

Not

520882

TEM Interlocked Switch Relay 2 6

Circuit 2 undercurrent

TEM Switch Interlocked Output Short circuit in TEM Interlocked circuit 2 Not available

available

Not

520883

Transfer Case Low Indicator 5

Circuit 2 overcurrent

Transfer case low indicator high side Not available Not available

available

1601-F7

520883

Transfer Case Low Indicator 6

output exhibits an undercurrent condition or is open

Transfer case low indicator high side Not available Not available

1601-F7

520884

Transfer Case Neutral Indicator 5

output exhibits an overcurrent condition or is short to ground

Transfer case neutral indicator high Not available Not available

1601-F6

520884

Transfer Case Neutral Indicator 6

side output exhibits an undercurrent condition or is open

Transfer case neutral indicator high Not available Not available

1601-F6

side output exhibits an overcurrent condition or is short to ground

520885

Windshield Heat Left Output 5

Windshield Heat Left Output 6

Windshield Heat Left output Under Open Circuit in Windshield Heat Left Not available Current or Open Circuit Output

Windshield Heat Left Output Short- Short Circuit detected in Windshield Heat Not available

Not available Not

520886

Windshield Heat Right Output 5

Circuit Left Output

Windshield Heat Right Output Under Open Circuit detected in Windshield Heat Not available

available

Not

520886

Windshield Heat Right Output 6

Current or Open Circuit Right Output

Windshield Heat Right Output Short- Short Circuit detected in Windshield Heat Not available

available

Not

520887

Windshield Heat Left Temp Sensor 0

Circuit Right Output

Left Windshield Heat Temperature Left Windshield Heat Temperature Sensor Not available

available

Not

520887

Windshield Heat Left Temp Sensor 1

Sensor reading above normal range Shorted High or Open Circuit or faulty

sensor system

Left Windshield Heat Temperature Left Windshield Heat Temperature Sensor Not available

available

Not

Sensor reading below normal range Short to Ground or faulty sensor system

available

520888

Windshield Heat Right Temp Sensor 0

Windshield Heat Right Temp Sensor 1

Right Windshield Heat Temperature Right Windshield Heat Temperature Not available Sensor reading above normal range Sensor Shorted High or Open Circuit or

faulty sensor system

Right Windshield Heat Temperature Right Windshield Heat Temperature Not available

Not available

Not

520889

Relay Driver 9, Channel 1 13

Sensor reading below normal range Sensor Short to Ground or faulty sensor

system

Connector J4 Pin E11 has a load on Connector J4 Pin E11 is drawing current Not available

available

Not

this pin that has been configured as and it is configured as unused check unused configuration and or wiring harness

available

520890

Relay Driver 10, Channel 2 13

Connector J4 Pin E10 has a load on Connector J4 Pin E10 is drawing current Not available this pin that has been configured as and it is configured as unused check

unused configuration and or wiring harness

Not available

520891

Relay Driver 11, Channel 3 13

Connector J4 Pin E15 has a load on Connector J4 Pin E15 is drawing current Not available this pin that has been configured as and it is configured as unused check

unused configuration and or wiring harness

Not available

520892

Relay Driver 12, Channel 4 13

Connector J4 Pin E14 has a load on Connector J4 Pin E14 is drawing current Not available this pin that has been configured as and it is configured as unused check

unused configuration and or wiring harness

Not available

520893

Relay Driver 13, Channel 5 13

Connector J4 Pin E16 has a load on Connector J4 Pin E16 is drawing current Not available this pin that has been configured as and it is configured as unused check

unused configuration and or wiring harness

Not available

520894

Relay Driver 14, Channel 6 13

Connector J4 Pin E12 has a load on Connector J4 Pin E12 is drawing current Not available this pin that has been configured as and it is configured as unused check

unused configuration and or wiring harness

Not available

520895

Relay Driver 15, Channel 7 13

Connector J4 Pin E13 has a load on Connector J4 Pin E13 is drawing current Not available this pin that has been configured as and it is configured as unused check

unused configuration and or wiring harness

Not available

520896

520897

Relay Driver 16, Channel 8 13

Relay Driver 17, Channel 9 13

Connector J4 Pin E9 has a load on Connector J4 Pin E9 is drawing current Not available this pin that has been configured as and it is configured as unused check

unused configuration and or wiring harness

Connector J4 Pin F6 has a load on Connector J4 Pin F6 is drawing current Not available

Not available

Not

520898

Relay Driver 18, Channel 10 13

this pin that has been configured as and it is configured as unused check unused configuration and or wiring harness

Connector J4 Pin F7 has a load on Connector J4 Pin F7 is drawing current Not available

available

Not

520899

Relay Driver 19, Channel 11 13

this pin that has been configured as and it is configured as unused check unused configuration and or wiring harness

Connector J4 Pin F2 has a load on Connector J4 Pin F2 is drawing current Not available

available

Not

520900

Relay Driver 20, Channel 12 13

this pin that has been configured as and it is configured as unused check unused configuration and or wiring harness

Connector J4 Pin F3 has a load on Connector J4 Pin F3 is drawing current Not available

available

Not

520901

Relay Driver 21, Channel 13 13

this pin that has been configured as and it is configured as unused check unused configuration and or wiring harness

Connector J4 Pin F1 has a load on Connector J4 Pin F1 is drawing current Not available

available

Not

this pin that has been configured as and it is configured as unused check

unused configuration and or wiring harness

available

520902

520903

Relay Driver 22, Channel 14 13

Relay Driver 23, Channel 15 13

Connector J4 Pin F5 has a load on Connector J4 Pin F5 has a load on this pin Not available this pin that has been configured as that has been configured as unused

unused

Connector J4 Pin F4 has a load on Connector J4 Pin F4 is drawing current Not available

Not available

Not

this pin that has been configured as and it is configured as unused check

unused configuration and or wiring harness

available

520904

520905

Relay Driver 24, Channel 16

Relay Driver 25, Channel 17

Connector J4 Pin F8 has a load on

this pin that has been configured as unused

Connector J4 Pin F10 has a load on

Connector J4 Pin F8 is drawing current

and it is configured as unused check configuration and or wiring harness Connector J4 Pin F10 is drawing current

Not available

Not

available

Not

this pin that has been configured as unused

and it is configured as unused check configuration and or wiring harness

available

520906

Relay Driver 26, Channel 18

Connector J4 Pin F11 has a load on this pin that has been configured as unused

Connector J4 Pin F11 is drawing current and it is configured as unused check configuration and or wiring harness

Not available

520907

Relay Driver 27, Channel 19

Connector J4 Pin F14 has a load on this pin that has been configured as unused

Connector J4 Pin F14 is drawing current and it is configured as unused check configuration and or wiring harness

Not available

520908

Relay Driver 28, Channel 20

Connector J4 Pin F15 has a load on this pin that has been configured as unused

Connector J4 Pin F15 is drawing current and it is configured as unused check configuration and or wiring harness

Not available

520909

Relay Driver 29, Channel 21

Connector J4 Pin F13 has a load on this pin that has been configured as unused

Connector J4 Pin F13 is drawing current and it is configured as unused check configuration and or wiring harness

Not available

520910

520911

Relay Driver 30, Channel 22

Relay Driver 31, Channel 23

Connector J4 Pin F9 has a load on this pin that has been configured as unused

Connector J4 Pin F16 has a load on

Connector J4 Pin F9 is drawing current and it is configured as unused check configuration and or wiring harness Connector J4 Pin F16 is drawing current

Not available

Not

this pin that has been configured as unused

and it is configured as unused check configuration and or wiring harness

available

520912

Relay Driver 32, Channel 24

Connector J4 Pin F12 has a load on this pin that has been configured as unused

Connector J4 Pin F12 is drawing current and it is configured as unused check configuration and or wiring harness

Not available

520913

520914

Relay Driver 1, Channel 25

Relay Driver 2, Channel 26

Connector J4 Pin E7 has a load on this pin that has been configured as unused

Connector J4 Pin E6 has a load on

Connector J4 Pin E7 is drawing current and it is configured as unused check configuration and or wiring harness Connector J4 Pin E6 is drawing current

Not available

Not

520915

Relay Driver 3, Channel 27

this pin that has been configured as unused

Connector J4 Pin E3 has a load on

and it is configured as unused check

configuration and or wiring harness Connector J4 Pin E3 is drawing current

Not available

available

Not

520916

Relay Driver 4, Channel 28

this pin that has been configured as unused

Connector J4 Pin E2 has a load on

and it is configured as unused check

configuration and or wiring harness Connector J4 Pin E2 is drawing current

Not available

available

Not

520917

Relay Driver 5, Channel 29

this pin that has been configured as unused

Connector J4 Pin E4 has a load on

and it is configured as unused check

configuration and or wiring harness Connector J4 Pin E4 is drawing current

Not available

available

Not

520918

Relay Driver 6, Channel 30

this pin that has been configured as unused

Connector J4 Pin E8 has a load on

and it is configured as unused check

configuration and or wiring harness Connector J4 Pin E8 is drawing current

Not available

available

Not

this pin that has been configured as

unused

and it is configured as unused check

configuration and or wiring harness

available

520919

520920

Relay Driver 7, Channel 31

Relay Driver 8, Channel 32

Connector J4 Pin E1 has a load on this pin that has been configured as unused

Connector J4 Pin E5 has a load on

Connector J4 Pin E1 is drawing current and it is configured as unused check configuration and or wiring harness

Connector J4 Pin E5 is drawing current

Not available

Not

520922

Switch 6-Pack #3 Location 1

this pin that has been configured as unused

Unexpected switch in switchpack 3

and it is configured as unused check

configuration and or wiring harness Switch actuator installed or bad

Not available

available

Not

520923

Switch 6-Pack #3 Location 2

(MID 3) position 1 from left (Switch 1

of 6)

Unexpected switch in switchpack 3

microswitch in location configured as empty

Switch actuator installed or bad

Not available

available

Not

520924

Switch 6-Pack #3 Location 3

(MID 3) position 2 from left (Switch 2

of 6)

Unexpected switch in switchpack 3

microswitch in location configured as empty

Switch actuator installed or bad

Not available

available

Not

520925

Switch 6-Pack #3 Location 4

(MID 3) position 3 from left (Switch 3

of 6)

Unexpected switch in switchpack 3

microswitch in location configured as empty

Switch actuator installed or bad

Not available

available

Not

520926

Switch 6-Pack #3 Location 5

(MID 3) position 4 from left (Switch 4

of 6)

Unexpected switch in switchpack 3

microswitch in location configured as empty

Switch actuator installed or bad

Not available

available

Not

520927

Switch 6-Pack #3 Location 6

(MID 3) position 5 from left (Switch 5

of 6)

Unexpected switch in switchpack 3

microswitch in location configured as empty

Switch actuator installed or bad

Not available

available

Not

520928

Daytime Running Light Tell Tale

(MID 3) position 6 from left (Switch 6

of 6)

DRL Tell Tale Relay Command is

microswitch in location configured as empty

Open Circuit or Defective Solenoid

Not available

available

Not

520928

Command

Daytime Running Light Tell Tale

Under Current Or Open Circuit

DRL Tell Tale Relay Command is

Short To Ground or Defective Solenoid

Not available

available

Not

109

Command

Coolant Pressure

Overcurrent

High Refrigerant Pressure

High refrigerant pressure in system or

available

168

Electrical Potential (Voltage)

Battery Voltage High

pressure sensor unplugged or faulty Pressure sensor

Battery voltage above 16VDC

168

Electrical Potential (Voltage)

Battery Voltage Low

Battery voltage below 12.1VDC

1547

A/C Evaporator Temperature

Duct Inlet Sensor High

Duct Inlet sensor Low

Recirc sensor wire shorted to power or Recirc sensor missing or open circuit or faulty Recirc sensor

Recirc sensor wire shorted to ground or

1548

HVAC Duct Temperature

Duct temperature sensor voltage

fault Recirc sensor

Duct temperature sensor wire shorted to

high

power or open circuit or faulty sensor

One thought on “International Trucks Diagnostics Trouble Codes (DTCs)”

Phil DeKnight 25/02/2021

I am thinking of purchasing a 2016 international prostar. It has 2 fault codes that I can not find what they are 1) SPN 111, FMI 1, OC 1, SA 1 (2) SPN 524285, FMI 14, OC 1, SA 150 . I hope you can tell me what these codes mean and how to correct them Thank you

Reply ↓

International Trucks Diagnostics Trouble Codes (DTCs)

International Trucks Fault Codes List (DTCs) for Model: 3200, 4100, 4300, 4400, 7300, 7400, 7500, 7600, 7700, 8500, 8600,
BE 200, CE Bus, CXT, DuraStar, LoneStar, MXT, ProStar, RXT, TranStar, WorkStar

Fault codes in PDF

DISPLAYING DIAGNOSTIC TROUBLE CODES

VEHICLES EQUIPPED WITH OPTION TO DISPLAY CODES

Displaying Codes on the Gauge Cluster (Non-VID equipped vehicles)

Displaying Codes on the VID (if equipped)

CLEARING DIAGNOSTIC TROUBLE CODES

DEFINITIONS

FAILURE MODE INDICATORS (FMI)

SOURCE ADDRESSES (SA)

DIAGNOSTIC TROUBLE CODE (DTC) LIST

One thought on “International Trucks Diagnostics Trouble Codes (DTCs)”

Leave a Reply Cancel reply

Copyright

International Trucks Fault Codes List (DTCs) for Model: 3200, 4100, 4300, 4400, 7300, 7400, 7500, 7600, 7700, 8500, 8600, BE 200, CE Bus, CXT, DuraStar, LoneStar, MXT, ProStar, RXT, TranStar, WorkStar

Fault codes in PDF

DISPLAYING DIAGNOSTIC TROUBLE CODES

VEHICLES EQUIPPED WITH OPTION TO DISPLAY CODES

Displaying Codes on the Gauge Cluster (Non-VID equipped vehicles)

Displaying Codes on the VID (if equipped)

CLEARING DIAGNOSTIC TROUBLE CODES

DEFINITIONS

FAILURE MODE INDICATORS (FMI)

SOURCE ADDRESSES (SA)

DIAGNOSTIC TROUBLE CODE (DTC) LIST

One thought on “International Trucks Diagnostics Trouble Codes (DTCs)”

Leave a Reply Cancel reply

Copyright

International Trucks Fault Codes List (DTCs) for Model: 3200, 4100, 4300, 4400, 7300, 7400, 7500, 7600, 7700, 8500, 8600,
BE 200, CE Bus, CXT, DuraStar, LoneStar, MXT, ProStar, RXT, TranStar, WorkStar