Howo Fuel System Fault Codes

By | 01/10/2018

Howo Fuel System Fault Codes List

See also: Howo Trucks Service Repair Manuals PDF

Howo A7 Fault Codes

Howo A7

 

 Table of diagnostic flashing codes for faults of the fuel pump system of Common Rail Diesel engine

Diagnostic Flashing Code Fault Code  

Description

 

Actions of Block (Ecu)

 

Fault

 

Manifestation of Malfunction:

 

 

1

 

 

P1683

 

Short Circuit Short On Mass Additional Motor brake Output

 

 

Alarm Off

 

 

The “mass” of the output OUT6 37

 

 

The motor brake function is not working well.

 

 

1

 

 

P1684

 

 

SC on battery Complementary Motor Brake Output

 

 

Alarm Burns

 

 

KZ +In the exit OUT6 37

 

 

The motor brake function is not working well.

 

 

 

 

 

2

 

 

 

 

 

P1602

 

 

 

 

Code data Qr Have not been entered

 

 

 

 

Alarm Burns

 

 

 

 

Code data Qr Have not been entered (all equal zero)

 

 

 

Lower output power and Increase of toxic emissions, increase of engine noise and emissions of white Smoke

 

 

 

 

 

2

 

 

 

 

 

P0602

 

 

 

 

Data Code Qr Wrong

 

 

 

 

Alarm Burns

 

 

 

Code size Qr Incorrect Eeprom) Kqrsw

Shows 0, 1, 2

 

 

 

Lower output power and Increase of toxic emissions, increase of engine noise and emissions of white Smoke

 

 

 

 

 

2

 

 

 

 

 

P1601

 

 

 

Defining data for code Qr Incorrect (change definition Code Qr Wrong

 

 

 

Alarm not lit, the system does not work

 

Defining data For Code Qr Incorrect (for example, wrong order 40.80, 120,

140). This will not happen in mass production.

 

 

 

Lower output power and Increase of toxic emissions, increase of engine noise and emissions of white Smoke

 

 

 

 

3

 

 

 

 

P0607

 

 

Fault Cpu. Monitor the malfunction of the integrated circuit.

 

The alarm is lit, the cruise

Control does not work, RTO stopped, fuel supply limit 70%.

 

 

Malfunction of the additional Cpu (Monitoring the computer of the main Ecu)

 

 

Lower output power and Increased toxic emissions, increased engine noise and engine stalls

 

 

 

 

3

 

 

 

 

P0606

 

 

 

Fault Cpu, malfunction of the main Cpu

 

 

Alarm Burns Cruise control is not It’s working Rto MtplNovilos, fuel supply limit 70%.

 

 

Malfunction of the main Cpu (Getting Signal Additional faults Ecu)

 

Reduced output power and increased toxic emissions, increased engine noise and engine stalls

 

 

 

 

3

 

 

 

 

P0601

 

 

Check the area specified by the flashing code and errors

 

 

Alarm Burns Cruise control is not It’s working Rto MtplNovilos, fuel supply limit 70%.

 

 

Ecu Constantly spends Circular Check the area specified by the flashing code

 

Reduced output power and increased toxic emissions, increased engine noise, and engine stalls

 

 

 

5

 

 

 

P0686

 

Malfunction of the main relay Relay Zaliplo in Closed Able

 

 

 

Alarm Burns

 

 

When the relay does not work, the voltage is above 16 v.

 

When the ignition is switched off, the fault alarm continues to burn

 

 

6

 

 

P0217

 

Coolant temperature exceeds upper limit

Alarm not lit, cruise control is not Works, LimitedFuel supply 70%.  

The coolant temperature exceeds the upper limit of 107 C.

 

 

Overheating

 

 

 

7

 

 

 

P0219

 

 

Engine Exceeds Limit Momentum

 

Alarm Malfunction Not lit And cruise control is disabled

Warning When Speed exceeds 3000; When Frequency

Rotation Below 2800, Warning Disappears

There are no obvious malfunctions (when the engine speed is Above 2900 rpm)
 

 

8

 

 

U0073

 

Error ECU CAN1

 

Alarm Off

 

“Mass” of wires 157 CAN1H

and 158 CAN1L

 

9

 

U1001

 

Error ECU CAN2

 

Alarm Burns

“Mass” of wires 95 CAN2H And 96 CAN2L
 

 

9

 

 

U0121

 

Abs Disconnected from the bus CAN

The fault alarm is lit and the cruise control is disconnected  

Abs Disconnected from the bus CAN

 

 

9

 

 

U0155

 

Device CAN Disconnected From Tires CAN

The fault alarm is lit and the cruise control is disconnected  

Device CAN Disconnected from the bus CAN

 

 

 

11

 

 

P0118

 

High coolant temperature sensor signal

 

The fault alarm is lit and the cruise control is disconnected

 

 

Break Signal wire Circuit 155Ad7

 

 

Noise and white smoke emissions increase

 

 

11

 

 

P0117

 

Low temperature sensor signal Cooling Liquid

Alarm Burns Cruise control is not Works, LimitedFuel supply of 70%.  

 

EMCO on 55A-GND5

Signal Wires 155Ad7

 

 

Noise and white smoke emissions increase

 

 

 

12

 

 

 

P0342

 

 

Sensor G does not yield ripples

 

The fault alarm is lit and Kruizkontrol Disables

 

 

 

Gap Chain 120g

 

Unstable idling speed and poor start-up (possibly with black smoke ejection)

 

 

 

 

13

 

 

 

 

P0337

 

 

 

Sensor Ne does not yield ripples

 

 

Fault alarm lights, cruise control Disables And FCCB Disables

 

 

 

 

Gap Chain 40ne +

 

 

Unstable idle, poor engine start (possibly with black smoke) and engine Stalls.

 

 

 

 

13

 

 

 

 

P0385

 

 

No sensor pulses Ne And G

The fault alarm is lit, the cruise control is switched off, FCCB Disables Pto Switched off and the motor brake is switched off  

 

 

Simultaneous chain break 40Ne+ and 120G

 

Unstable idle, poor engine start (possibly with black smoke) and engine Stalls.

 

 

14

 

 

P0183

 

High oil temperature sensor signal

 

Alarm Burns

 

Break Signal wire Circuit 162Ad8

 

No visible signs of malfunction

 

 

14

 

 

P0182

 

Low oil temperature sensor signal

 

Alarm Burns

 

EMCO on 55A-GND5

Signal Wires 162Ad8

 

No visible signs of malfunction

 

 

 

15

 

 

 

P2229

 

 

High atmospheric pressure sensor signal

 

 

 

Alarm Burns

 

 

 

SC on 5v internal wire signal Ecu

Increase of white smoke emission, decrease of power, increase of emission toxicity, low engine power on horizontal road

 

 

 

 

 

 

 

15

 

 

 

 

 

P2228

 

 

 

 

Low atmospheric pressure sensor signal

 

 

 

 

 

Alarm Burns

 

 

 

 

“Mass” of the internal signal wire Ecu

 

Increase of white smoke emission, decrease of power, increase of emission toxicity, low engine power on horizontal road

 

 

16

 

 

P0113

 

High ambient air temperature sensor signal

 

Alarm Burns

 

Break Signal wire Circuit 32Ad16

 

Increase Toxic Emissions

 

 

16

 

 

P0112

 

Low ambient temperature sensor signal

 

Alarm Burns

 

EMCO on 55A-GND5

Signal Wires 32Ad16

 

Increase Toxic Emissions

 

 

17

 

 

P0523

 

High signal electronic pressure sensor of motor oil

Alarm Burns Cruise control is not Works, LimitedFuel supply of 70%.  

 

Emco Of 57 A-VCC4 24 ad12

 

Reduced engine power and increased fuel consumption

 

 

17

 

 

P0522

 

Low signal of motor oil pressure electronic sensor

Alarm Burns Cruise control is not Works, LimitedFuel supply of 70%.  

 

Short Circuit 24 ad12

 

Reduced engine power and increased fuel consumption

 

 

 

 

17

 

 

 

 

P0524

 

 

 

 

Low Pressure Motor Oil

 

 

The alarm is lit, the cruise control does not work, the RTO does not work, Limited tion 70% fuel supply.

 

 

 

Low motor oil pressure (defined Mpoilthl_D)

 

 

Reduced engine power and increased fuel consumption

 

 

 

 

 

21

 

 

 

 

 

P0503

 

 

 

 

High frequency car speed signal

 

 

 

The alarm is lit and Cruise control The switch off

 

 

 

Input Signal 27Vs1 above normal sensor frequency Vs

 

The cruise control function can not be used on the car.

The speed shown by the speedometer is different from the actual rate.

 

 

 

 

 

 

21

 

 

 

 

 

P0502

 

 

 

Or circuit break at the sensor inlet Speed Car

 

 

 

The alarm lights up and the cruise-Control off

 

 

 

 

Chain Break 27Vs1 and Kz On Mass Or

+B

 

 

It does not matter if this Code Flashing is served on the stand with running drums (stand is not connected to the sensor)

 

 

 

 

 

21

 

 

 

 

 

P0501

 

 

 

Wrong car speed sensor signal

 

 

 

The alarm lights up and the cruise control is switched off

 

 

 

 

Constant on/off state Entrance 27Vs1

 

 

It does not matter if this Code Flashing is served on the stand with running drums (stand is not connected to the sensor)

 

 

 

 

 

22

 

 

 

 

 

P0122

 

 

 

Low sensor signal Provisions Accelerator pedal 1

 

 

 

The alarm light is on and the cruise control is switched off

 

 

 

 

Signal Wire chain Break 21Ad1

 

 

Poor quality mounts, low engine power, low engine speed, no function work Motor Brake

 

 

 

 

22

 

 

 

 

P0123

 

 

 

High sensor signal Provisions Accelerator pedal 1

 

 

 

The alarm light is on and the cruise control is switched off

 

 

 

EMCO on 125A-Vcc2

Signal Wires 21Ad1

 

Poor quality mounts, low engine power, low engine speed, no function work Motor Brake

 

 

 

 

22

 

 

 

 

P0222

 

 

 

Low sensor signal Provisions Accelerator pedal 2

 

 

 

The alarm light is on and the cruise control is switched off

 

 

 

Signal wire chain Break 22Ad2

 

Poor quality mounts, low engine power, low engine speed, no function work Motor Brake

 

 

 

 

 

22

 

 

 

 

P0223

 

 

 

High sensor signal Provisions Accelerator pedal 2

 

 

 

The alarm is lit and

Cruise control Disables

 

 

 

EMCO on 123A-Vcc3

Signal Wires 22Ad2

 

Poor quality mounts, low power Engine, Low speed Engine does not work Motor function Brakes

 

 

 

 

22

 

 

 

 

P0121

 

Poor quality mounts, low power Engine, Low speed Engine does not work Motor function Brakes

 

 

 

 

22

 

 

 

 

P0221

 

Poor quality mounts, low power Engine, Low speed Engine does not work Motor function Brakes

 

 

 

 

22

 

 

 

 

P0120

 

Poor quality mounts, low power Engine, Low speed Engine does not work Motor function Brakes

 

 

 

 

22

 

 

 

 

P0220

 

Poor quality mounts, low power Engine, Low speed Engine does not work Motor function Brakes

 

 

 

22

 

 

 

P2120

 

Inefficient dual sensor position of the accelerator pedal

 

 

The alarm is lit and

Cruise control Disables

 

 

Simultaneous circuit break 21Ad1 and 22Ad2 Signal Wires

Poor quality mounts, low power Engine, engine speed, does not work motor function Brakes

 

 

 

23

 

 

P0228

 

Low Signal From Rto

Alarm Troubleshooting Minute Not lit and RTO not working  

Signal Wire Chain Break 23Ad10

 

Not It’s working Function Rto

 

 

23

 

 

P0227

 

High Signal From Rto

Alarm The malfunction is lit and Rto Whats  

EMCO on 65A-Vcc5

Signal Wires 23Ad10

 

Not It’s working Function Rto

 

 

25

 

 

P0541

“Mass” of the output wire of the pre-heating relay  

Alarm Burns

KZ on Mass Exit 70 OUT19 And 71 OUT20 (When

Work Glow Heating)

 

Cold engine runs poorly

 

 

25

 

 

P0542

Rupture of the output circuit of the pre-heating/short-circuit relay on the battery  

 

Alarm Burns

 

Exit circuit Break 70 OUT19 and 71 OUT20 or KZ on +B

 

Cold engine runs poorly

 

 

26

 

 

P0563

High voltage in the electric network of the car  

Alarm Burns

InternallyE Voltage VBB > 4 In the i.e

НAprjazhenie Systemss > 32 in

 

Engine BadAbout Starts

 

 

26

 

 

P0562

Low voltage in the electric network of the car  

Alarm Off

Internal tension VBB < 1, 9 In the i.e

Voltage в System < 15 B

 

Engine Not good Starts

 

 

28

 

 

P1681

 

Breaking the chain of motor brake or short circuit to “mass”

 

 

Alarm Burns

 

Gap Chain 36OUT5 и Kz

On Mass

 

The motor brake function cannot be used normally.

 

 

28

 

 

P1682

Circuit on the battery of the motor brake control chain  

Alarm Burns

 

KZ +In the exit 36OUT5

The motor brake function cannot be used normally.
 

 

 

37

 

 

 

P0238

 

High inlet air pressure sensor signal

 

Alarm Lit, and cruise control

Disables

 

 

EMCO on 57A-Vcc4

Signal Wires 128Ad3

Low engine power, poor traction characteristics of the engine, especially at full load of the car.
 

 

 

37

 

 

 

P0237

 

Low ambient temperature sensor signal

 

Alarm Lit, and cruise control

Disables

 

 

Break Signal wire Circuit 128Ad3

Low engine power, poor traction characteristics of the engine, especially at full load of the car.

 

 

 

 

37

 

 

 

P0236

 

 

Works poorly Inlet pressure sensor Air

 

Fault alarm is not lit And Cruise control Disables

 

 

128 Signal WireAd3 is loaded with alternating internal voltage of 5 V.

Low engine power, poor traction characteristics of the engine, especially at full load of the car.
 

 

39

 

 

P0234

 

Pressure sensor signal Inlet Air exceeds the upper limit

The alarm is not lit, Cruise control Does not work, the fuel supply limit is 70%.  

 

PIM>TBOPH (MAP)

exceeds the upper limit

 

 

39

 

 

P0299

 

Pressure sensor signal Inlet Air below the lower limit

Alarm not lit, Cruise control Does not work, the fuel supply limit is 70%.  

 

PIM<TBOPL (MAP)

Above the upper limit

 

 

41

 

 

P0704

 

Fault in the chain of the limit switch of the clutch

 

The alarm is lit and

Cruise control Disables

 

 

Chain Break 77 Sw27 (Car speed

> 80 km/h)

Poor quality mounts (cruise control and motor brake not working, etc.)
 

 

 

43

 

 

 

P1565

 

 

Malfunction in Circuit Breaker Cruise control

 

The fault alarm is lit and

Cruise control Disables

Kz On +B Wire 79 switch Cruise Control 2Sw and 92 switch Cruise control 1Sw, Or you want to press During the Long time  

 

Abnormal Work Cruise- Control

 

 

44

 

 

P1143

 

High sensor signal Potentiometer Idle

 

Alarm Off

 

EMCO on 65A-Vcc5

Signal Wires 30Ad14

 

 

44

 

 

P1142

 

Low sensor signal Potentiometer Idle

 

Alarm Off

 

Signal Wire Circuit Break 30Ad14

 

 

45

 

 

P0617

 

 

Emco Of Akb

Switch Ignition

 

 

Alarm Burns

 

 

Chain Break 48Sw2 and KZ on the supply voltage on the wire 48

 

 

46

 

 

P1530

 

Jamming switch Engine Stuck or Closed

 

 

Alarm Burns

 

 

50SW4 ON

 

 

Abnormal flame ejection from the engine

 

 

 

47

 

 

P0850

 

Circuit malfunction Switch neutral Transfer

 

The alarm light is on and the cruise control is switched off

 

Chain Break 66 Sw9 (speed Car > 80 km/h)

 

Bad work functions RTO, cruise control, etc.

 

 

 

51

 

 

 

P0201

 

Rupture of the nozzle outlet circuit TWV1 and Detaching Electromagnetic Winding Nozzles

Alarm Burns Cruise control is not It’s working FCCB Not It’s working Feed limit Fuel 70%.  

 

 

Gap Chain 103 TWV1

 

Reduced output power and increased toxic emissions, increased engine noise

 

 

 

52

 

 

 

P0202

 

Rupture of the nozzle outlet circuit TWV5 and disconnection of the electromagnetic winding nozzle

Alarm Burns Cruise control is not It’s working FCCB Not It’s working Feed limit Fuel 70%.  

 

 

Gap Chain 105 twv5

 

Reduced output power and increased toxic emissions, increased engine noise

 

 

 

53

 

 

 

P0203

 

Rupture of the nozzle outlet circuit TWV3 and disconnection of the electromagnetic winding nozzle

Alarm Burns Cruise control is not It’s working FCCB Not It’s working Feed limit Fuel 70%.  

 

 

Gap Chain 104 Twv3

 

Reduced output power and increased toxic emissions, increased engine noise

 

 

 

 

54

 

 

 

 

P0204

 

 

Rupture of the nozzle outlet circuit TWV6 and disconnection of the electromagnetic winding nozzle

 

Alarm Burns Cruise control is not It’s working FCCB Not It’s working Feed limit Fuel 70%.

 

 

 

Gap Chain 139 Twv6

 

 

Reduced output power and increased toxic emissions, increased engine noise

 

 

 

 

55

 

 

 

 

P0205

 

Rupture of the nozzle outlet circuit TWV3 and disconnection of the electromagnetic winding nozzle

 

Alarm Burns Cruise control is not It’s working FCCB Not It’s working Feed limit Fuel 70%.

 

 

 

Gap Chain 137 Twv2

 

Reduced output power and increased toxic emissions, increased engine noise

 

 

 

56

 

 

 

P0206

 

Rupture of the nozzle outlet circuit TWV4 and disconnection of the electromagnetic winding nozzle

Alarm Burns Cruise control is not It’s working FCCB Not It’s working Feed limit Fuel 70  

 

Gap Chain 138 TWV4

 

Lower output power and Increased toxic Emissions and increased engine noise

 

 

 

 

 

57

 

 

 

 

P2148

 

 

 

Circuit on the battery of the nozzle chain Com1/KZ on battery Outputs TWV1 3 и 5

 

 

Alarm Burns Cruise control is not It’s working FCCB Not It’s working Fuel supply limit 50%.

 

 

Kz On +B Wires 106, 107 nozzles Com1 / Kz On +B On Wires 103, 104 and 105

 

Reduced output power and increased toxic emissions, increased engine noise

 

 

 

 

57

 

 

 

 

P2147

 

 

 

“Mass” of the nozzle chain Com1/KZ on the output battery TWV1, 3 and 5

 

 

Alarm Burns Cruise control is not It’s working FCCB Not It’s working Fuel supply limit 50%.

 

 

“Mass” in points 106, 107 nozzles Com1 / Kz On +B в Points 103, 104 и 105

 

Reduced output power and increased toxic emissions, increased engine noise

 

 

 

 

57

 

 

 

 

P2146

 

 

Break the output circuit under the nozzle load Com1/Break the output circuit under load TWV1, 3, 5

 

 

Alarm Burns Cruise control is not It’s working FCCB Not It’s working Fuel supply limit 50%.

 

 

 

Chain Break 106, 107 Nozzles Com1/Chain break 103, 104 и 105

 

Reduced output power and increased toxic emissions, increased engine noise

 

 

 

 

58

 

 

 

 

P2151

 

 

 

Circuit on the battery of the nozzle chain Com2/KZ on battery Outputs TWV2 4 и 6

 

 

Alarm Burns Cruise control is not It’s working FCCB Not It’s working Fuel supply limit 50%.

 

 

Kz On +B Wires 142, 143 Nozzles Com2 / Kz On +B Wires 137, 138

and 139

 

Reduced output power and increased toxic emissions, increased engine noise

 

 

 

 

58

 

 

 

 

P2150

 

 

 

“Mass” of the nozzle chain Com2/KZ on the output battery TWV2, 4 and 6

 

 

Alarm Burns Cruise control is not It’s working FCCB Not It’s working Fuel supply limit 50%.

 

 

“Mass” of wires 142, 143 Nozzles Com2/short-circuit on the “mass” of wires 137, 138 and 105

 

Reduced output power and increased toxic emissions, increased engine noise

 

 

 

58

 

 

 

P2149

 

Break output circuit Under Load Com2/Load Break circuit TWV2, 4, and 6

Alarm Burns Cruise control is not It’s working FCCB Not It’s working Fuel supply Limit 50%  

 

Chain Break 142, 143 Nozzles Com2/Chain Break 137, 138 и 139

Reduced output power and increased toxic emissions increase engine noise

 

 

 

 

 

59

 

 

 

 

P0611

 

 

 

Fault Chain Charge Condenser

 

Alarm Burns Cruise control is not It’s working FCCB Not It’s working 50% fuel supply limit and low pressure limit

 

 

 

 

Internal Fault Ecu

 

Reduced output power and increased toxic emissions, increased engine noise

 

 

 

 

59

 

 

 

 

P0200

 

 

 

Fault Chain Charge Condenser

 

Alarm Burns Cruise control is not It’s working FCCB Not It’s working Fuel supply limit 51% and low Limitations- tion Pressure

 

 

 

 

Internal Fault Ecu

 

Reduced output power and increased toxic emissions, increased engine noise

 

 

 

 

 

61

 

 

 

 

 

P0301

 

 

 

 

Circuit malfunction ToplivopoCylinder 1

 

 

 

Alarm Not lit, And the system does not work

 

 

 

The nozzle is damaged, Injection No fuel (definitionBut FCCB)

 

Engine shaking at idle, low engine power at full load, increased fuel consumption compared to normal conditions

 

 

61

 

 

P0263

 

It’s working Damper Flow

№1

 

Alarm not litAnd the system does not work

The damper starts to act and the nozzle stops injectioning the fuel
 

 

 

 

 

62

 

 

 

 

 

P0305

 

 

 

 

Circuit malfunction Toplivopo Cylinder Giving 5

 

 

 

Alarm not lit And the system does not work

 

 

 

Nozzle damaged, no fuel injection (DetermineLeno FCCB)

 

Engine shaking at idle, low engine power at full load, increased fuel consumption compared to normal conditions

 

 

62

 

 

P0266

 

It’s working Damper Flow

№5

 

Alarm not lit And the system does not work

The damper starts to act and the nozzle stops injectioning the fuel

 

 

 

 

 

 

 

63

 

 

 

 

 

 

P0303

 

 

 

 

 

Circuit malfunction Fuel Cylinder 3

 

 

 

 

 

Alarm not litAnd the system does not work

 

 

 

 

 

Nozzle damaged, no fuel injection (DetermineLeno FCCB)

 

 

Engine shaking at idle, low engine power at full load, increased fuel consumption compared to normal conditions

 

 

63

 

 

P0269

 

It’s working Damper Flow № 3

 

Alarm not litAnd the system does not work

The damper starts to act and the nozzle stops injectioning the fuel
 

 

 

 

 

 

64

 

 

 

 

 

 

P0306

 

 

 

 

 

Circuit malfunction Fuel Cylinder 6

 

 

 

 

 

Alarm not litAnd the system does not work

 

 

 

 

 

Nozzle damaged, no fuel injection (DetermineLeno FCCB)

 

 

Engine shaking at idle, low engine power at full load, increased fuel consumption compared to normal conditions

 

 

64

 

 

P0272

 

It’s working Damper Flow № 6

 

Alarm not litAnd the system does not work

The damper starts to act and the nozzle stops injectioning the fuel
 

 

 

 

 

 

65

 

 

 

 

 

 

P0302

 

 

 

 

 

Circuit malfunction Fuel Cylinder 2

 

 

 

 

 

Alarm not litAnd the system does not work

 

 

 

 

 

Nozzle damaged, no fuel injection (DetermineLeno FCCB)

 

 

Engine shaking at idle, low engine power at full load, increased fuel consumption compared to normal conditions

 

 

65

 

 

P0275

 

It’s working Damper Flow № 2

 

Alarm not litAnd the system does not work

The damper starts to act and the nozzle stops injectioning the fuel

 

 

 

 

 

 

 

66

 

 

 

 

 

 

P0304

 

 

 

 

 

Fuel circuit malfunction Cylinder 4

 

 

 

 

 

Alarm not litAnd the system does not work

 

 

 

 

 

Nozzle damaged, no fuel injection (DetermineLeno FCCB)

 

 

Engine shaking at idle, low engine power at full load, increased fuel consumption compared to normal conditions

 

 

66

 

 

P0278

 

It’s working Damper Flow

№4

 

Alarm not litAnd the system does not work

The damper starts to act and the nozzle stops injectioning the fuel
 

 

 

 

 

67

 

 

 

 

 

P0193

 

 

 

High pressure sensor signal in the fuel cell

The alarm is lit, the cruise control does not work, the fuel supply limit is 70%, the pressure limit in the fuel accumulator is up to 80 MPa  

 

 

Simultaneous break of signal wires circuit 21Ad1 and 132Ad5

 

Reduced output power and increased toxic emissions (with white smoke emissions), increased engine noise

 

 

 

 

 

67

 

 

 

 

 

P0192

 

 

 

Low pressure sensor signal in the fuel cell

The alarm is lit, the cruise control does not work, the fuel supply limit is 70%, the pressure limit in the fuel accumulator is up to 80 MPa  

 

 

Simultaneous short-circuit on 134A-Gnd1

121 Signal WiresAd4 and 132Ad5

 

Reduced output power and increased toxic emissions (with white smoke emissions), increased engine noise

 

 

 

 

 

67

 

 

 

 

 

P0191

 

 

 

The pressure sensor signal in the fuel accumulator in the Intermediate Range

The alarm is lit, the cruise control does not work, the fuel supply limit is 70%, the pressure limit in the fuel accumulator is up to 80 MPa  

 

 

The sensor is defective and the output Voltageremains unchanged

 

Reduced output power and increased toxic emissions (with white smoke emissions), increased engine noise

 

 

 

 

68

 

 

 

 

P0088

 

 

The pressure in the fuel accumulator exceeds the upper limit

The alarm is lit, the cruise control does not work, the fuel supply limit is 70%, the pressure limit in the fuel accumulator is up to 80 MPa  

 

 

The pressure in the fuel accumulator exceeds 191 Mpa

 

Reduced power output, increased toxic emissions and white smoke emissions

 

 

 

 

69

 

 

 

 

P1089

 

 

The pressure in the fuel accumulator exceeds the upper limit

 

Alarm Burns Cruise control is not It’s working 70% fuel supply limit, fuel cell pressure limit To 80 Mpa

 

 

Pressure in FuelsBattery exceeds 180 MPa

 

Reduced power output, increased toxic emissions and white smoke emissions

 

 

 

 

71

 

 

 

 

P0629

 

 

 

 

Output circuit Pcv1 and SC on battery

 

 

The alarm is lit, the cruise control does not work, the fuel supply limit is 70%.

 

 

 

 

Kz On +В Contacts 152, 153 Pcv1

 

Reduced output capacity and increased toxic emissions, increased fuel consumption

 

 

 

 

71

 

 

 

 

P0628

 

 

 

Chain break Pcv1 and KZ on Mass

 

 

The alarm is lit, the cruise control does not work, the fuel supply limit is 70%.

 

 

 

Chain Break 152, 153 Pcv1 or KZ On Mass

 

Reduced output capacity and increased toxic emissions, increased fuel consumption

 

 

 

 

72

 

 

 

 

P2634

 

 

 

 

Output circuit Pcv2 and KZ on battery

 

 

The alarm is lit, the cruise control does not work, the fuel supply limit is 70%.

 

 

 

 

Kz On +В Contacts 150, 151 Pcv2

 

Reduced output capacity and increased toxic emissions, increased fuel consumption

 

 

 

72

 

 

 

P2633

 

 

 

Output circuit Pcv2 and KZ to “mass”

 

The alarm is lit, the cruise control does not work, the fuel supply limit is 70%.

 

 

Chain Break 150, 151 Pcv2 or short-circuit on Mass

Reduced output capacity and increased toxic emissions, increased fuel consumption
 

 

 

 

73

 

 

 

 

P0629

 

 

 

 

EMCO of ACB

Power Pcv1 and Pcv2

 

 

The alarm is lit, the cruise control does not work, the RTO does not work, the fuel supply limit is 50% and the engine is immediately stalls.

 

 

 

Simultaneous short-circuit on + in wires 152, 153, 150, 151, Pcv1 and Pcv2

 

Reduced power output, start-up difficulty Engine, increase of flow rate Fuel toxic emissions

 

 

 

 

 

 

 

73

 

 

 

 

 

 

P0628

 

 

 

 

 

Break out Circuit Pcv1 and Pcv2 and KZ on Mass

 

 

Alarm Burns Cruise control is not It’s working RTO not Works, Limited50% fuel supply and the engine is immediately Stalls.

 

 

 

 

Simultaneous break of the circuit 152, 153, 150, 151, Pcv1 and

Pcv2 or short-circuit on Mass

 

 

Reduced output power, difficulty starting the engine, increased fuel consumption And Increased toxic emissions

 

 

 

 

 

76

 

 

 

 

 

P2635

 

 

 

The fuel pump load control circuit is overloaded

 

Alarm Burns Cruise control is not It’s working Fuel supply limit 70%, OgreLimiting pressure in the fuel cell

To 80 Mpa

 

 

 

Mechanical malfunction of fuel pump in overload conditions

 

Reduced output power and increased toxic emissions, increased engine noise, engine stalls

 

 

 

 

 

76

 

 

 

 

 

P1088

 

 

 

The fuel pump control system exceeds the permissible pressure

 

Alarm Burns Cruise control is not It’s working Fuel supply limit 70%, OgreLimiting pressure in the fuel cell

To 80 Mpa

 

 

 

Excess pressure in Fuel Battery Npc> Pfin+ 15 MPa

 

Reduced output power and increased toxic emissions, increased engine noise, engine stalls

 

 

 

 

77

 

 

 

 

P1266

 

 

Fuel pump control without load

Alarm Burns Cruise control is not It’s working Fuel supply limit 70%, OgreLimiting pressure in the fuel cell

To 80 Mpa

 

 

Fuel pump control system can not increase the angle of injection

 

Reduced power output, increased toxic emissions and white smoke emissions

 

 

 

 

78

 

 

 

 

P0093

 

 

Fuel pump control without load, Including Leaks Fuel

Alarm Burns Cruise control is not It’s working Fuel supply limit 70%, OgreLimiting pressure in the fuel cell

To 80 Mpa

 

 

 

Fuel pump without load, including fuel leakage

 

Reduced power output, increased toxic emissions and white smoke emissions