See also:
The car is standing still.
Parameter:
Parking brake status
Fault:
FMI 0 Battery pressure is above 10 bar. Defective air dryer control unit (installed inside the air dryer) is faulty. Replace air dryer.
FMI 2 The signal value of the air pressure sensor in the battery is out of acceptable limits (pressure sensor is installed inside the air dryer). Defective air dryer control unit. Replace with air dryer .
Parameter:
Car speed
Fault:
FMI 2 The speed signal from the vehicle control unit MID144 is incorrect or missing. Breakage or partial damage to the SAE J1587 / J1708 data channel wiring. Damaged or oxidized pins in connectors.Perhaps faulty vehicle control unit.
Parameter:
Torque
Fault:
FMI 2 The signal from the engine control unit MID128 is incorrect or missing. Breakage or partial damage to the SAE J1587 / J1708 data channel wiring. Damaged or oxidized pins in connectors. The engine control unit may be faulty.
Parameter:
Engine speed
Fault:
FMI 2 The signal from the engine control unit MID128 is incorrect or missing. Breakage or partial damage to the SAE J1587 / J1708 data channel wiring. Damaged or oxidized pins in connectors. The engine control unit may be faulty.
Parameter:
Mileage information
Fault:
FMI 2 The signal coming from the MID140 dashboard control unit is incorrect or missing. Breakage or partial damage to the SAE J1587 / J1708 data channel wiring. Damaged or oxidized pins in connectors. Perhaps faulty control unit dashboard. Check for the presence of fault codes for dashboard control units.
Parameter:
date
Fault:
FMI 2 The signal coming from the MID140 dashboard control unit is incorrect or missing. Breakage or partial damage to the SAE J1587 / J1708 data channel wiring. Damaged or oxidized pins in connectors. Perhaps faulty control unit dashboard. Check for the presence of fault codes for dashboard control units.
Parameter:
Downshift switch
Fault:
FMI 2 The signal coming from the car control unit MID144 is incorrect or missing. Breakage or partial damage to the SAE J1587 / J1708 data channel wiring. Damaged or oxidized pins in connectors.Perhaps faulty vehicle control unit.
Parameter:
Idle switch № 1 accelerator pedal
Fault:
FMI 2 The signal coming from the car control unit MID144 is incorrect or missing. Breakage or partial damage to the SAE J1587 / J1708 data channel wiring. Damaged or oxidized pins in connectors.Perhaps faulty vehicle control unit.
Parameter:
SAE J1939 data feed
Fault:
FMI 2 The signals by which the air dryer unit and other control units communicate with each other over an SAE J1939 data channel are out of range or absent. Breakage of wiring, damage to the contacts in the data channel connectors SAE J1939.
Parameter:
Control unit 2
Fault:
FMI 2 Invalid internal calculations. Defective air dryer control unit.
FMI 8 Invalid self test results. Defective air dryer control unit.
FMI 12 Internal malfunction of the control unit.
Parameter:
Program memory
Fault:
FMI 2 Invalid checksum value. Error in the program or incorrectly programmed parameters. Perform reprogramming. If the fault persists, replace the air dryer.
FMI 8 Invalid checksum value. Error in the program. Try restarting MID185.
FMI 9 Malfunction of the internal memory of the air dryer control unit or incorrectly programmed parameters. Try restarting MID185. perform reprogramming. If the fault persists, replace the air dryer.
FMI 10 Parameters in the air dryer control unit are incorrectly programmed. Try restarting MID185. perform reprogramming. If the fault persists, replace the air dryer.
FMI 11 Parameters in the air dryer control unit are incorrectly programmed. Try restarting MID185. Perform reprogramming. If the fault persists, replace the air dryer.
FMI 12 The air dryer control unit is faulty. Replace air dryer.
FMI 14 The air dryer control unit is faulty. Replace air dryer.
Parameter:
Brake pedal switch
Fault:
FMI 2 The signal from the MID136 braking system control unit is incorrect or missing. Breakage or partial damage to the SAE J1587 / J1708 data channel wiring. Damaged or oxidized pins in connectors.The brake control unit MID136 or the car control unit MID144 may be faulty.
Parameter:
Power supply control unit air dryer
Fault:
FMI 0 High voltage between the power contact 3 and the ground contact 4 on the air dryer connector. Possible generator malfunction. Try restarting MID185.
FMI 1 Low voltage between the power contacts 3 or 1 and the ground contact 4 at the air dryer connector. A short to ground on the power supply leads Try restarting MID185.
FMI 5 Break of power wires to the contacts of the air dryer 3 or 1, break of the ground wire to the contact of the air dryer 4. One of the fuses F8 or F47 has blown. Try restarting MID185.
Parameter:
Calibration control unit
Fault:
FMI 14 The control unit is in self-test mode. Try restarting MID185.
Parameter:
Gauge EEPROM Memory
Fault:
FMI 2 Incorrect checksum value at the beginning of work. Parameters in the air dryer control unit are incorrectly programmed. Try restarting MID185. Perform reprogramming.
FMI 6 Internal malfunction in the air dryer control unit. Try restarting MID185. Perform reprogramming. If the fault persists, replace the air dryer.
FMI 7 Incorrect checksum value at the beginning of work. Parameters in the air dryer control unit are incorrectly programmed. Try restarting MID185. Perform reprogramming.
FMI 12 Internal malfunction in the air dryer control unit. Try restarting MID185. Perform reprogramming. If the fault persists, replace the air dryer.
FMI 13 Internal malfunction in the air dryer control unit. Try restarting MID185. Perform reprogramming. If the fault persists, replace the air dryer.
FMI 14 Internal malfunction in the air dryer control unit. Try restarting MID185. Perform reprogramming. If the fault persists, replace the air dryer.
Parameter:
Control unit 1
Fault:
FMI 2, 10, 11, 12 Internal malfunction in the air dryer control unit. Try restarting MID185. Perform reprogramming. If the fault persists, replace the air dryer.
Parameter:
Control unit temperature
Fault:
FMI 2 The sensor signal of the internal temperature of the air dryer control unit is out of range. Defective air dryer control unit. Replace air dryer.
FMI 10 The temperature of the unit is below -48 degrees or above +93 degrees. Extreme weather conditions or defective temperature sensor. Restart MID185 at an ambient temperature of 20 degrees. If the code remains active, replace the air cleaner.
Parameter:
Engine speed control
Fault:
FMI 2 The signal from the engine control unit MID128 is incorrect or missing. Breakage or partial damage to the data channel wiring. Damaged or oxidized pins in connectors. The engine control unit may be faulty.
Parameter:
Air pressure in the parking brake circuit
Fault:
FMI 8 The pressure in the parking brake circuit increases, even with the solenoid valve activated. Air ingress from trailer circuit or defective air dryer. Try to completely empty and fill the pneumatic system.Try restarting MID185.
FMI 9 The circuit of the parking brake is not completely filled for a certain period of time. Leaks in the parking brake or trailer circuit are blocked or partially blocked. Try to completely empty and fill the pneumatic system. Try restarting MID185.
FMI 12 The air pressure in the parking brake circuit or the trailer circuit is lower than 4.5 bar at speeds above 10 km / h. Leaks in the parking brake or trailer circuit are blocked or partially blocked. Try to completely empty and fill the pneumatic system. Try restarting MID185.
Parameter:
Fixed neutral position
Fault:
FMI 2 The signal from MID144 car control unit is incorrect or missing. Breakage or partial damage to the SAE J1587 / J1708 data channel wiring. Damaged or oxidized pins in connectors. Perhaps faulty vehicle control unit.
Parameter:
Front circuit of the main brake system
Fault:
FMI 0 The pressure in the front loop is above 14 Bar, at a speed of more than 10 km / h. Defective air dryer. Try to completely empty and fill the pneumatic system. Try restarting MID185.
FMI 12 The pressure in the front loop is below 4.5 bar, at a speed of more than 10 km / h. The elements of the front contour are leaking or partially clogged. Try restarting MID185.
Parameter:
Rear side of the main brake system
Fault:
FMI 0 The air pressure in the rear loop is 1.5 bar higher. automatic shutdown pressure. Defective air dryer. Try to completely empty and fill the pneumatic system. Try restarting MID185.
FMI 12 The pressure in the rear loop is below 4.5 Bar, at a speed of more than 10 km / h. The elements of the rear loop are leaking or partially clogged. Try restarting MID185.
Parameter:
Main solenoid valve
Fault:
FMI 3, 5 Internal malfunction in the air dryer control unit. Replace air dryer.
Parameter:
Safety valve
Fault:
FMI 3, 5 Internal malfunction in the air dryer control unit. Replace air dryer.
Parameter:
Valve restoring
Fault:
FMI 3, 5, 6, 7, 8, 9 For FMI 8 first check the integrity of the data channel wiring of SAE J1939 and SAE J1587. Internal malfunction in the air dryer control unit. Replace air dryer.
Parameter:
Blocking valve
Fault:
FMI 3, 5, 6, 7, 8, 9 For FMI 8 first check the integrity of the data channel wiring of SAE J1939 and SAE J1587. Internal malfunction in the air dryer control unit. Replace air dryer.
Parameter:
Drive, heating
Fault:
FMI 3 Short circuit of a wire of a food of an air-drier on plus from accumulators or the air-drier is faulty.
FMI 5 Internal malfunction in the air dryer control unit. Replace air dryer.
FMI 6 Internal malfunction in the air dryer control unit. Replace air dryer.
FMI 7 Internal malfunction in the air dryer control unit. Replace air dryer.
FMI 9 Internal malfunction in the air dryer control unit. Replace air dryer.
FMI 13 Parameters in the air dryer control unit are incorrectly programmed. Try restarting MID185. Perform reprogramming. If the fault persists, replace the air dryer.
Parameter:
Air pressure sensor in the front brake circuit
Fault:
FMI 2 The signals from the air pressure sensor in the front loop have values that go beyond normal limits. Defective air dryer control unit.
FMI 10 High differential pressure in front and rear circuits. Air leakage in one of the circuits. Try restarting MID185.
Parameter:
Air pressure sensor in the rear brake circuit
Fault:
FMI 2 The signals from the air pressure sensor in the back loop have values that go beyond normal limits. Internal malfunction in the air dryer control unit. Replace air dryer.
Parameter:
Air pressure sensor in the parking brake circuit
Fault:
FMI 2 The signals from the air pressure sensor in the parking brake circuit have values that go beyond normal limits. Internal malfunction in the air dryer control unit. Replace air dryer.
Parameter:
Solenoid valve setting
Fault:
FMI 13 Internal malfunction in the air dryer control unit. Replace air dryer.
Parameter:
Setting pressure sensors
Fault:
FMI 13 Internal malfunction in the air dryer control unit. Replace air dryer.
Parameter:
Pressure limiter
Fault:
FMI 2 High air pressure in the parking brake circuit and trailer brake circuit. Pressure above 10 bar. The air dryer control unit is faulty. Try restarting MID185.
Parameter:
Air dryer filter element
Fault:
FMI 0 Pressure of 12.5 Bar is not maintained. Air leaks in the vehicle or trailer system, the compressor is faulty, the air line between the compressor and the air dryer is blocked. The air dryer element is completely filled with moisture. Possible defective air dryer. First replace the filter element. Try restarting MID185.
Parameter:
Air dryer filter element.
Fault:
Compressor shutdown pressure 12.5 bar. not achieved for a long time. Air leaks in the vehicle or trailer system, the compressor is faulty, the air line between the compressor and the air dryer is blocked. The air dryer element is completely filled with moisture. Possible defective air dryer. First replace the filter element. Try restarting MID185.
Parameter:
Large amounts of condensate in the brake system
Fault:
FMI 0 Compressor shutdown pressure 12.5 bar. not achieved for a long time. Air leaks in the vehicle or trailer system, the compressor is faulty, the air line between the compressor and the air dryer is blocked. The air dryer element is completely filled with moisture. Possible defective air dryer. First replace the filter element. Try restarting MID185.
Parameter:
Compressor activation
Fault:
FMI 0 Pressure of 12.5 Bar is not maintained. Air leaks in the vehicle or trailer system, the compressor is faulty, the air line between the compressor and the air dryer is blocked. The air dryer element is completely filled with moisture. Possible defective air dryer. First replace the filter element. Try restarting MID185.
Parameter:
Air pressure in the brake system
Fault:
FMI 0 The pressure in the discharge phase is higher by more than 0.5 Bar. The air dryer control unit may be faulty. Try restarting MID185.
FMI 1 The air pressure in the brake system is below normal. Air leaks from the brake system. The actual air pressure in the brake system is different from the pressure measured by the air dryer control unit. Try restarting MID185.
FMI 2 Internal malfunction in the air dryer control unit. Replace air dryer.
Parameter:
Data Link Disruption SAE J1939 with engine control unit MID128
Fault:
FMI 9 The air dryer control unit MID185 does not receive signals from the engine control unit MID128 via the SAE J1939 data channel. Broken or partial damage to data wire between the blocks. Theengine control unit may be faulty.
Parameter:
Data Link Disruption SAE J1939 with car control unit MID144
Fault:
FMI 9 The MID185 air dryer control unit does not receive signals from the MID144 car control unit via the SAE J1939 data channel. Broken or partial damage to data wire between the blocks. Perhaps faulty vehicle control unit.
Parameter:
Data Link Disruption SAE J1939 with dashboard control unit MID140
Fault:
FMI 9 MID185 dehumidifier control unit for 5 seconds is not receiving signals via SAE J1939 data from the instrument panel MID140 control unit. Broken or partial damage to data wire between the blocks.Perhaps faulty control unit dashboard.
Parameter:
Data Link Disruption SAE J1939 with dashboard control unit MID140
Fault:
FMI 9 MID185 dehumidifier control unit within 50 seconds of not receiving signals via SAE J1939 data from the instrument panel MID140 control unit. Broken or partial damage to data wire between the blocks. Perhaps faulty control unit dashboard.
Parameter:
Data Link Disruption SAE J1939 with MID136 braking system control unit
Fault:
FMI 8 Conflict signals from the air dryer control unit MID185 and the braking system control unit MID136. Broken or partial damage to data wire between the blocks. Perhaps defective control unit braking system.
FMI 9 Broken or partial damage to data wire between the blocks. Perhaps defective control unit braking system.
Parameter:
Data Link Disruption SAE J1939 with gearbox control box MID130
Fault:
FMI 9 The air dryer control unit MID185 does not receive signals from the MID136 gearbox control unit via data channel SAE J1939. Broken or partial damage to data wire between the blocks. The gearbox control unit may be faulty.
Parameter:
Data Link Disruption SAE J1939 with air suspension control unit MID150
Fault:
FMI 2 The signals from the MID150 air suspension control unit are incorrect or missing. The air suspension control unit may be faulty.
FMI 9 Breakage or partial damage to the wires of the data channel between the blocks. The air suspension control unit may be faulty.
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