Fault Code 35 J1939 Communication Link (TECU) Detection. Failure Mode Identifier (FMI) Codes on J1939 data link Commercial Vehicle Technology.This link is used to transmit information to the Hybrid Control Module (HCM) as well as communicate with or receive data from the other modules on the network such as the Electronic Control Unit (ECU). MID141 Volvo Dynafleet control unit fault codes(Active fault codes are Troubleshooting Guide SPN FMI DTC / SPN-FMI. /rebates/welcomeurlhttps3a2f2fMar 21, 2020 Break in the power or ground wire. Shorting the signal wire to a higher voltage. The pedal position sensor or the idle switch No. MID 144 PID 91FMI 3 The voltage of the signal coming to the control unit from the accelerator pedal sensor is higher than 4.3 V. MID 144 PID 86FMI 14 The vehicle control unit (VECU) does not receive information from the adaptive cruise control unit (ACC) via the SAE J1939 data channel. Breaking or partial damage to the data channel. The ACC unit may be faulty. MID 144 PID 84FMI 2 There is a big difference between the speed signals from the tachograph (via the SAE J1939 data channel or to the contact of the vehicle control unit PB6) and the speed signals from the wheel rotation sensors (ABS). Before searching for faults in the vehicle control unit system, read the fault codes of the ABS / EBS systems and eliminate the causes of their occurrence. It is also possible that the wiring is faulty or the signals from the tachograph are not correct. Perhaps there were manipulations with the speed sensor or with the wiring between the speed sensor on the gearbox and the tachograph.FMI 14 Tachograph speed signals are not correct. Damaged wiring. Perhaps defective speed sensor on the gearbox or tachograph. Breakage of the signal or supply wires. Shorting the signal wire to ground. Air pressure sensor may be faulty.FMI 14 It appears when the signal from the vehicle control unit is sent to the desiccant, and the air pressure in the system continues to increase. Damaged or blocked tube control valves of the compressor from the desiccant. Faulty valves in the compressor head (jammed in the closed position). Damaged wiring between the vehicle control unit and the discharge valve on the water dryer. Damaged, dirty or clogged compressor discharge valve in the drier. The air pressure sensor is faulty (the sensor is located behind the instrument panel on the right). The safety valve should go off. If the safety valve is clogged and does not work, the compressor head seals may fail and large amounts of air from the compressor may enter the engine cooling system.
MID 144 SID 253FMI 2 Programming error or control unit memory chip is faulty. Try to reprogram the unit (performed only on authorized service stations).FMI 14 Data error Faulty memory chip in control unit or software error. Try to reprogram the unit (performed only on authorized service stations). MID 144 SID 250FMI 2 Errors in messages on the data channel SAE J1708. Partial damage to the data channel wiring. MID 144 SID 231FMI 2 The control unit does not receive messages over the SAE J1939 data channel. Breakage or partial damage to the data channel wiring. Damaged or oxidized pins in connectors.FMI 12 The control unit does not receive messages over the SAE J1939 data channel. Breakage or partial damage to the data channel wiring. Damaged or oxidized pins in connectors. MID 144 SID 230FMI 7 The accelerator pedal is fully released, and the signal from the idle switch does not flow to the vehicle control unit. Break signal or power wires. Shorting the signal wire to ground or positive.Damaged or oxidized pins in connectors. Perhaps a faulty switch integrated with the accelerator pedal. MID 144 PID 152The number of reinstalls car control unitFMI 12 The code is registered in the event of an internal software failure, and the internal independent function of restarting the vehicle control unit is triggered. The code is informational and is not a malfunction code. Break in the power supply wire of the power take-off solenoid valve. Broken wire between the valve and the control unit. Damaged or oxidized pins in connectors. The solenoid valve may be faulty. Minnesota enhanced license requirementsShorting of the power wire to ground, short circuit of the signal wire of the accelerator pedal switch, brake or clutch to ground. MID 144 PPID 70Power supply for accelerator, brake and clutch pedal switchesFMI 4 The vehicle control unit has detected a voltage lower than 3 V on the power wire of the switches. 1 accelerator pedal. Signal wire shorted to ground. 1 accelerator pedal. Signal wire shorted to ground.FMI 4 The signal from the buffered idle switch does not match the signal from the idle switch No. MID 144 PPID 69FMI 3 The signal from the buffered idle switch does not match the signal from the idle switch No. MID 144 PPID 61FMI 7 Faulty wiring or switch. Short circuit to a higher voltage or the relay K2 is faulty (located on the central distribution board of the relay and fuses in the middle of the instrument panel). MID 144 PPID 74Power supply to the engine control unit EECU and the vehicle control unit VECUFMI 3 The control voltage of the relay K2 is from the PB15 contact of the vehicle control unit above 1 V. Shorting of the power wire to ground. The air pressure sensor may be faulty (located behind the instrument panel on the right) or the “Dynafleet” switch. An open circuit of the ground wire, a short circuit of the power wire to a higher voltage, an open circuit of the power wire. The air pressure sensor may be faulty (located behind the instrument panel on the right) or the “Dynafleet” switch.FMI 4 The vehicle control unit has detected a voltage lower than 4.7 V on the power wire. MID 144 PPID 73Power supply air pressure sensor in the primary receiver (air suspension) and switch “Dynafleet”FMI 3 The vehicle control unit has detected a voltage of more than 5.3 V on the power wire.
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