Deciphering the diagnostic trouble codes of the MID128 Volvo engine control units
See also:
Parameter:
ICE fan speed
Fault:
FMI 3 The voltage on the contact of the engine EA6 EAU is higher than 65% of the battery voltage, short to positive, a broken power or ground wire, or a sensor fault on the fan. The fan rotates at maximum frequency, which causes high fuel consumption.
FMI 8 The engine block has detected extra pulses in the fan speed signal, the wiring is damaged or the wires are poorly insulated, the sensor on the fan is faulty, the fan is faulty. The fan rotates at maximum frequency, which causes high fuel consumption.
Parameter:
Preheating air
Fault:
FMI 3 The wire between the engine control unit from the contact EB31 and the relay K48 closes to a constant plus, the relay K48 is faulty. Starting the engine in cold weather is difficult. The code is active only if the ignition lock key is in the preheating position (between the ignition on position and the engine start position)
FMI 4 The wire between the engine control unit from the EB31 contact and the K48 relay is shorted to ground, the K48 preheating relay is defective. The air heater is permanently activated, as a result of overheating, the heating coil may be destroyed and parts of the coil may enter the intake manifold of the engine and the valve mechanism.
FMI 5 An open circuit, a power supply fuse for the heating relay, a wire breakage between the engine control unit and the relay, a break in the power supply relay of the relay. Heating does not turn on, starting in cold weather is difficult.
Parameter:
The pressure difference in the filter microparticles
Fault:
FMI 0 The data are reliable, but are above the norm.
FMI 2 Wrong data
FMI 3 Short circuit or high voltage circuit
FMI 5 Open circuit or low current
FMI 12 Faulty component
Parameter:
Car speed
Fault:
FMI 9 The speed sensor is faulty, the error is the data channel information SAE J1708, an error in the car control unit (VECU). If FMI 11 is present, the engine speed does not exceed 1700 rpm. Check the integrity of the data channel wiring.
FMI 11 Missing or invalid speed signal transmitted via SAE J1939 data channel, speed sensor faulty, SAE J1939 data channel faulty, vehicle control unit faulty (VECU). The speed signal is transmitted via the SAE J1708 data channel. If FMI 9 is present, the engine speed does not exceed 1700 rpm. Check the integrity of the data channel wiring.
Parameter:
System status to maintain a given speed
Fault:
FMI 9 Error in data channel SAE J1708, error in vehicle control unit (VECU). Check the integrity of the data channel wiring.
Parameter:
Accelerator pedal position
Fault:
FMI 9 Accelerator pedal position signal is incorrect or missing, the sensor on the accelerator pedal is faulty, data channel SAE J1587 / J1708 is faulty, an error in the vehicle control unit (VECU). If FMI 11 is present, the engine block goes into idle mode. Check data channel J1587 / J1708 between the engine block and the MA connector (distribution box under the radiator grille on the left) and from the MA connector to the CLF connector (distribution box in the center of the dashboard).
FMI 11 If the wiring is normal, replace the accelerator pedal. The pedal position signal is not transmitted through the data channel SAE J1939, the sensor on the accelerator pedal is faulty, the data channel SAE J1939 is faulty, an error in the vehicle control unit. If FMI 9 is present, the engine block goes into idle mode. Check the integrity of the data channel, replace the accelerator pedal.
Parameter:
Pressure in the fuel supply system
Fault:
FMI 1 For engines D6B, D7C, D10B, D12C: The fuel pressure is below normal. The fuel filter is clogged, fuel leakage, air leakage, the bypass valve opens at low pressure, the mechanical pump does not pump well or the sensor is faulty. Perform a fuel pressure check using a pressure gauge. For engine D16B: The fuel pressure is above normal (more than 700 kPa). The fuel filter is clogged, the bypass valve does not open.
FMI 3 The voltage on the EA27 contact of the engine block is above 4.95 V. Short circuit of the wire to the power supply or to the signal wire. Sensor may be faulty
FMI 4 The voltage on the EA27 contact of the engine block is below 0.08 V. Break of the power supply wires, signal or mass of the fuel pressure sensor. The sensor may be faulty.
FMI 7 Fuel pressure below normal. The fuel filter is clogged, fuel leakage, air leakage, the bypass valve opens at low pressure, the mechanical pump does not pump well, the sensor is faulty. Perform a fuel pressure check using a pressure gauge.
Parameter:
Indicator of water in the fuel separator
Fault:
FMI 3 The voltage at the contact of the engine block EV6 exceeds 91% of the battery voltage. A short to a power or signal wire, a broken signal wire. Indicator may be faulty.
FMI 4 The voltage at the contact of the engine block EV6 below 5% of the battery voltage. Short to minus or wire signal. Indicator may be faulty.
FMI 14 The code informs you that the electric fuel pump has been turned on. Not a malfunction code.
Parameter:
Oil level in ICE
Fault:
FMI 1 Low engine oil level, level sensor faulty.
FMI 4 The voltage at the contacts of the engine block EV15-EB22 is lower than 0.5 V. A short to negative or to a signal wire. The level sensor may be faulty.
FMI 5 The voltage on the contacts of the engine block EV15-EB22 is higher than 4.95 V. Break of the signal wire or ground wire. A short to power or ground. The sensor may be faulty.
Parameter:
Oil pressure in the engine
Fault:
FMI 1 Low oil level. Liquid, thick, dirty oil. Probably faulty bypass valves, oil pump, oil pressure sensor.
FMI 3 The voltage on the contact block of the internal combustion engine EA14 above 4.95 V. A short to power or signal wire. The sensor may be faulty.
FMI 4 The voltage on the contact block of the engine EA14 below 0.08 V. Breakage of the power wire or sensor signal. Short to minus or wire signal. The sensor may be faulty.
Parameter:
Charge air pressure
Fault:
FMI 3 The voltage on the contact block of the internal combustion engine EA3 above 4.95 V. A short to the power or signal wire. Probably faulty charge air sensor.
FMI 4 The voltage on the contact block of the internal combustion engine EA3 is below 0.08 V. Break in the power supply wire or sensor signal. A short to minus or to a signal wire or a sensor is faulty.
Parameter:
Discharge air temperature
Fault:
FMI 3 The voltage on the contact block of the internal combustion engine EA2 is higher than 4.95 V. A short to the power or signal wire, or the sensor is faulty.
FMI 4 The voltage on the contact block of the internal combustion engine EA2 is below 0.08 V. Break of the power supply wire or sensor signal. A short to minus or to a signal wire or a sensor is faulty.
Parameter:
Pressure drop in air filter
Fault:
FMI 0 Large differential pressure, clogged air filter, or defective differential pressure sensor on the air filter.
FMI 3 The voltage on the EB3 contact of the engine block from the sensor on the air filter exceeds 91% of the battery voltage. A short to power, signal or ground. The sensor may be faulty.
FMI 4 The voltage on the EB3 contact of the engine block from the sensor on the air filter is less than 9% of the battery voltage. A short to ground or signal or sensor is faulty.
FMI 5 The voltage on the EB3 contact of the engine block from the sensor on the air filter is from 63 to 91% of the battery voltage. Broken wire signal, ground or defective sensor.
Parameter:
Atmospheric pressure (the sensor is located inside the engine block)
Fault:
FMI 3 Sensor signal is higher than 4.95 V. The engine block is faulty.
FMI 4 Sensor signal below 0.08V. Faulty engine block.
Parameter:
Engine coolant temperature
Fault:
FMI 0 Coolant temperature exceeds 102 degrees. There is no liquid, thermostat or water pump malfunction, the cooling system radiator is clogged inside or outside, the intercooler ( intercooler ) is clogged outside or the fluid temperature sensor is faulty.
FMI 3 The voltage on the EA25 contact from the temperature sensor is higher than 4.95 V. Closure of the signal wire to the power wire. Broken ground supply or signal. The sensor may be faulty.
FMI 4 The voltage on the EA25 contact from the temperature sensor is below 0.08 V. Shorting of the signal wire to ground, the sensor is faulty.
Parameter:
Coolant level
Fault:
FMI 1 The voltage on contact EB7 of the engine block from the level sensor is less than 45% of the battery voltage. Low level of coolant or shorting of the signal wire to ground. The level sensor may be faulty.
FMI 3 The voltage on EB7 of the engine block from the level sensor exceeds 95% of the battery voltage. A short to power wire, 24V circuit, or signal wire, or a level sensor is faulty.
FMI 4 The voltage on the contact ЕВ7 of the engine block from the level sensor is absent. A short to ground or to a signal wire. The level sensor may be faulty.
Parameter:
Back exhaust pressure
Fault:
FMI 2 Wrong data
FMI 3 Short circuit or high voltage circuit
FMI 4 Short circuit or low voltage circuit
FMI 5 Open circuit or low current
FMI 7 Incorrect response of the mechanical system
FMI 10 Large fluctuations
Parameter:
Crankcase pressure
Fault:
FMI 0 Crankcase pressure above 8 kPa. Ventilation crankcase clogged. Piston rings may wear out or the crankcase pressure sensor may be faulty. The engine stalls at a speed of less than 2 km / h.
FMI 3 The voltage on the EB24 contact of the engine block from the sensor exceeds 4.95 V. A short to power, signal or defective sensor.
FMI 4 The voltage on the EB24 contact of the engine block from the sensor is below 0.08 V. Break of the power or signal wires. A short to ground, a signal wire, or a sensor is faulty.
Parameter:
Battery voltage
Fault:
FMI 3 The voltage on the contacts ЕВ11, ЕВ12 of the engine block from batteries above 36 V. The generator is faulty or the starting device is connected.
FMI 4 The voltage on the contacts ЕВ11, ЕВ12 of the engine block from batteries is less than 12 V. The generator is faulty or the batteries are low. Partial damage to the battery leads or terminals is possible.
Parameter:
Transmission range achieved
Fault:
FMI 1 The data are reliable, but are above the norm.
FMI 2 Data is reliable, but below normal
Parameter:
Air temperature outside (sensor on the air filter)
Fault:
FMI 9 Wrong or missing signal from the sensor. Sensor bad, data link error SAE J1587 / J1708. Possible malfunction in the engine block.
Parameter:
Exhaust temperature
Fault:
FMI 0 Temperature too high. The influence of external conditions such as driving style and climate.
FMI 4 The voltage on the contact EB18 of the engine control unit from the temperature sensor is below 0.04 V. A short to ground, a signal wire, or a sensor is faulty.
FMI 5 The voltage on the contact EB18 above 4.95 V. A short to voltage from the battery. Broken wire signal or power. The sensor may be faulty.
Parameter:
Engine oil temperature
Fault:
FMI 0 The temperature of the engine oil is above 125 degrees. Insufficient cooling or defective sensor.
FMI 3 The voltage on the EA1 contact of the engine block from a temperature sensor is higher than 4.95 V. A short to power or signal wire. Broken power wire or temperature sensor malfunction.
FMI 4 The voltage on the EA1 contact of the engine block from the temperature sensor is below 0.08 V. A short to ground or to the signal wire. The sensor may be faulty.
Parameter:
High engine speed
Fault:
FMI 0 Engine speed is above 2500 rpm. Wrong gear selection when braking engines. The ingress of oil into the combustion chamber of the engine. A faulty turbocharger drives oil into the engine intake. After replacing the turbocharger, which expelled the oil, the remaining oil from the intercooler ( intercooler ) is not drained . The closed crankcase ventilation may be faulty (if equipped).
Parameter:
Car security code (immobilizer)
Fault:
FMI 2 Invalid response from the immobilizer unit. The code of the immobilizer unit does not match the code of the engine block. Incorrectly programmed engine block or immobilizer unit.
FMI 12 The response from the immobilizer unit is missing. Breakage of wiring between the engine block and the immobilizer unit or the immobilizer unit is faulty.
Parameter:
Speed sensor calibration data
Fault:
FMI 11 Calibration coefficient “K” is not transmitted through the data channel SAE J1708. Data link error or error in the VECU vehicle control unit.
Parameter:
Total mileage
Fault:
FMI 9 The message about the mileage of the car is not transmitted through the data channel SAE J1708 / J1587. Data channel malfunction or dashboard malfunction.
Parameter:
Post by SAE J1708
Fault:
FMI 9 Message lost over SAE J1708 data channel. Data link between the engine block and the vehicle control unit (VECU) is broken.
Parameter:
Post by SAE J1708
Fault:
FMI 9 Message lost over SAE J1708 data channel. Data link between the engine block and the vehicle control unit (VECU) is broken.
Parameter:
The difference in pressure of exhaust gases of internal combustion engines
Fault:
FMI 3 The voltage on the EA21 contact of the engine block is greater than 5.5 V. The counter-pressure sensor or wiring is faulty.
FMI 5 The voltage on the EA21 contact of the engine block from the backpressure sensor is higher than 4.95 V. A short to power, signal. Broken signal, power, or ground wire. The sensor may be faulty.
Parameter:
EGR temperature
Fault:
FMI 0 The data are reliable, but are above the norm.
FMI 4 Low voltage or low voltage circuit
FMI 5 Open circuit or low current
FMI 10 Large fluctuations
Parameter:
First cylinder nozzle
Fault:
FMI 2 The wire between the nozzles and the contacts EA12 or EA 24, shorted to the power wire. Work 3 of the six injectors.
FMI 3 The closure of one of the wires of the injector circuit to the contacts of the engine block (ЕА11,22,23,34,35,36) to the wire with a higher power supply. Shorting the injector wires to each other. 5 or 3 cylinders do not work.
FMI 4 The closure of one of the wires of the injector circuit to the contacts of the engine block (ЕА11,22,23,34,35,36) or the contacts (ЕА 12,24) to ground. Work 3 of the six injectors.
FMI 5 Open circuit in the injector circuit. If 3 fault codes appear in a single row of injectors, then there is a break between the injectors and the contacts of the engine block EA12 or EA24. If one malfunction code appears, it means a break between the corresponding nozzle and one of the contacts of the engine block (ЕА11,22,23,34,35,36). Work 3 or 5 cylinders.
FMI 7 The cylinder balancing data is high. Faulty injector, low compression in the corresponding cylinder or uneven engine load on the power take-off side. ICE does not work evenly, reduced power, possible extraneous noise.
FMI 11 Unstable faults. The cylinder balancing data is high, the injector is faulty, low compression. Decrease in power, uneven work, extraneous noise is possible.
Parameter:
Second cylinder nozzle
Fault:
FMI 2 The wire between the nozzles and the contacts EA12 or EA 24, shorted to the power wire. Work 3 of the six injectors.
FMI 3 The closure of one of the wires of the injector circuit to the contacts of the engine block (ЕА11,22,23,34,35,36) to the wire with a higher power supply. Shorting the injector wires to each other. 5 or 3 cylinders do not work.
FMI 4 The closure of one of the wires of the injector circuit to the contacts of the engine block (ЕА11,22,23,34,35,36) or the contacts (ЕА 12,24) to ground. Work 3 of the six injectors.
FMI 5 Open circuit in the injector circuit. If 3 fault codes appear in a single row of injectors, then there is a break between the injectors and the contacts of the engine block EA12 or EA24. If one malfunction code appears, it means a break between the corresponding nozzle and one of the contacts of the engine block (ЕА11,22,23,34,35,36). Work 3 or 5 cylinders.
FMI 7 The cylinder balancing data is high. Faulty injector, low compression in the corresponding cylinder or uneven engine load on the power take-off side. ICE does not work evenly, reduced power, possible extraneous noise.
FMI 11 Unstable faults. The cylinder balancing data is high, the injector is faulty, low compression. Decrease in power, uneven work, extraneous noise is possible.
Parameter:
Third cylinder nozzle
Fault:
FMI 2 The wire between the nozzles and the contacts EA12 or EA 24, shorted to the power wire. Work 3 of the six injectors.
FMI 3 The closure of one of the wires of the injector circuit to the contacts of the engine block (ЕА11,22,23,34,35,36) to the wire with a higher power supply. Shorting the injector wires to each other. 5 or 3 cylinders do not work.
FMI 4 The closure of one of the wires of the injector circuit to the contacts of the engine block (ЕА11,22,23,34,35,36) or the contacts (ЕА 12,24) to ground. Work 3 of the six injectors.
FMI 5 Open circuit in the injector. If 3 fault codes appear in a single row of nozzles, then there is a break between the nozzles and the contacts of the engine block EA12 or EA24. If one malfunction code appears, it means an open circuit between the corresponding injector and one of the contacts of the engine block (ЕА11,22,23,34,35,36). Work 3 or 5 cylinders.
FMI 7 cylinder balancing data is high. Faulty injector, low compression in the corresponding cylinder or uneven engine load on the power take-off side. ICE does not work evenly, reduced power, possible extraneous noise.
FMI 11 Intermittent faults. The cylinder balancing data is high, the injector is faulty, low compression. Decrease in power, uneven work, extraneous noise is possible.
Parameter:
Fourth cylinder nozzle
Fault:
FMI 2 The wire between the nozzles and the contacts EA12 or EA 24 is shorted to the supply wire. Work 3 of the six injectors.
FMI 3 Short circuit of one of the wires of the injector circuit to the contacts of the engine block (ЕА11,22,23,34,35,36) on the wire with higher power. Shorting the injector wires to each other. 5 or 3 cylinders do not work.
FMI 4 Short circuit of one of the wires of the injector circuit to the contacts of the engine block (ЕА11,22,23,34,35,36) or contacts (ЕА 12,24) to ground. Work 3 of the six injectors.
FMI 5 Open circuit in the injector. If 3 fault codes appear in a single row of nozzles, then there is a break between the nozzles and the contacts of the engine block EA12 or EA24. If one malfunction code appears, it means an open circuit between the corresponding injector and one of the contacts of the engine block (ЕА11,22,23,34,35,36). Work 3 or 5 cylinders.
FMI 7 cylinder balancing data is high. Faulty injector, low compression in the corresponding cylinder or uneven engine load on the power take-off side. ICE does not work evenly, reduced power, possible extraneous noise.
FMI 11 Intermittent faults. The cylinder balancing data is high, the injector is faulty, low compression. Decrease in power, uneven work, extraneous noise is possible.
Parameter:
Fifth cylinder nozzle
Fault:
FMI 2 The wire between the nozzles and the contacts EA12 or EA 24 is shorted to the supply wire. Work 3 of the six injectors.
FMI 3 Short circuit of one of the wires of the injector circuit to the contacts of the engine block (ЕА11,22,23,34,35,36) on the wire with higher power. Shorting the injector wires to each other. 5 or 3 cylinders do not work.
FMI 4 Short circuit of one of the wires of the injector circuit to the contacts of the engine block (ЕА11,22,23,34,35,36) or contacts (ЕА 12,24) to ground. Work 3 of the six injectors.
FMI 5 Open circuit in the injector. If 3 fault codes appear in a single row of nozzles, then there is a break between the nozzles and the contacts of the engine block EA12 or EA24. If one malfunction code appears, it means an open circuit between the corresponding injector and one of the contacts of the engine block (ЕА11,22,23,34,35,36). Work 3 or 5 cylinders.
FMI 7 cylinder balancing data is high. Faulty injector, low compression in the corresponding cylinder or uneven engine load on the power take-off side. ICE does not work evenly, reduced power, possible extraneous noise.
FMI 11 Intermittent faults. The cylinder balancing data is high, the injector is faulty, low compression. Decrease in power, uneven work, extraneous noise is possible.
Parameter:
The sixth cylinder nozzle
Fault:
FMI 2 The wire between the nozzles and the contacts EA12 or EA 24 is shorted to the supply wire. Work 3 of the six injectors.
FMI 3 Short circuit of one of the wires of the injector circuit to the contacts of the engine block (ЕА11,22,23,34,35,36) on the wire with higher power. Shorting the injector wires to each other. 5 or 3 cylinders do not work.
FMI 4 Short circuit of one of the wires of the injector circuit to the contacts of the engine block (ЕА11,22,23,34,35,36) or contacts (ЕА 12,24) to ground. Work 3 of the six injectors.
FMI 5 Open circuit in the injector. If 3 fault codes appear in a single row of nozzles, then there is a break between the nozzles and the contacts of the engine block EA12 or EA24. If one malfunction code appears, it means an open circuit between the corresponding injector and one of the contacts of the engine block (ЕА11,22,23,34,35,36). Work 3 or 5 cylinders.
FMI 7 cylinder balancing data is high. Faulty injector, low compression in the corresponding cylinder or uneven engine load on the power take-off side. ICE does not work evenly, reduced power, possible extraneous noise.
FMI 11 Intermittent faults. The cylinder balancing data is high, the injector is faulty, low compression. Decrease in power, uneven work, extraneous noise is possible.
Parameter:
Valve drain the water from the fuel separator
Fault:
FMI 3 A short to power wire between the drain valve and the contact of the EB32 ICE block (for a filter housing with an electric pump) or the EA19 ICE block contact (for a filter housing with a manual pump), an internal short circuit in the valve. Water drain is not functioning.
FMI 4 A short to ground between the drain valve and the contact of the engine block EB32 (for filter housing with an electric pump) or the contact of the engine IC EA19 (for filter housing with a hand pump). The fuel flows through the valve with the ignition on or with the engine running. Air may enter the fuel supply system.
FMI 5 An open wire between the drain valve and the engine block, an open inside the valve, fuse F41 blown. The valve is closed, the drain is not functioning.
Parameter:
Camshaft Speed Sensor
Fault:
FMI 3 No shaft speed signal. The closure of one of the wires of the sensor to the power supply, the short of the positive wire to ground. Open positive or negative wire. Incorrect gap between sensor and toothed shaft drive. The sensor wires are interchanged between each other. The sensor is faulty or the gear disk is damaged. Starting the engine is difficult.
FMI 8 Pulses in the signal coming to the engine block are wrong. Interference in the signal, insulation is broken or the wires are damaged, the gap is too large, the sensor is faulty or the gear disk is damaged. Starting the engine is difficult.
Parameter:
Crankshaft speed sensor
Fault:
FMI 2 The signal from the crankshaft speed sensor is incorrect. Signal disturbances, poor contact, damaged insulation or faulty wiring, defective sensor, damaged teeth on the flywheel. The engine block uses a signal from the camshaft sensor.
FMI 3 No shaft speed signal. The closure of one of the wires of the sensor to the power supply, the short of the positive wire to ground. Open positive or negative wire. Wrong gap between sensor and teeth on flywheel. The sensor wires are interchanged between each other. Faulty sensor or damaged teeth on flywheel.
FMI 8 Pulses in the signal coming to the engine block are wrong. Interference in the signal, insulation is broken or the wires are damaged, the gap is too large, the sensor is faulty or the teeth on the flywheel are damaged. The engine block uses a signal from the camshaft sensor.
Parameter:
Variable Geometry Turbocharger
Fault:
FMI 2 The commands from the engine block to the drive are not correct. Boost pressure is low, power is reduced, smoke. Check the SAE J1939 communication channel between the engine block and the drive on the turbocharger.
FMI 4 The voltage on the drive is below 10 V. for 10 seconds. Damaged wiring. Check and, if necessary, replace fuse F41.
FMI 7 Drive does not find position. Faulty position sensor or actuator. Incorrect calibration. Remove the actuator, check for damage, reinstall and calibrate.
FMI 9 The message from the drive does not go to the engine block for more than 5 seconds. Faulty communication link SAE J1939, internal fault in the drive.
FMI 12 Calibration error on SAE J1587 data link. Data channel corrupted. Re-calibrate.
FMI 13 The drive does not determine its extreme position. Self – calibration of the drive and turbocharger failed.
Parameter:
Fan control of the engine cooling system
Fault:
FMI 3 The voltage on the contact ЕВ21 of the engine block from the fan clutch is higher than 65% of the battery voltage. Shorting control wire to power supply wire. The fan rotates continuously at a speed of 100%. Fuel consumption increased.
FMI 4 A short between the EB21 contact of the engine block and the fan clutch to ground. The fan does not turn on. Possible overheating of the engine.
FMI 5 Broken power or control wiring, fan clutch malfunction, fuse F42 blown. The fan rotates continuously at a speed of 100%. Fuel consumption increased.
Parameter:
Engine starter
Fault:
FMI 0 Starter overheated due to long rotation of the engine crankshaft. Starter does not turn on. Wait until the starter cools.
FMI 3 Current strength at contact ЕВ29 from the starter is higher than 3.9 A. Short circuit to the power supply. Starter does not turn on.
FMI 7 Gearbox is not in neutral.
FMI 10 Flywheel gear locked. The starter cannot turn the crankshaft.
FMI 14 Power takeoff enabled. Starter does not turn on.
Parameter:
Fuel distributor
Fault:
FMI 3 Locking wiring or inside distributor to power supply.
FMI 4 Closing wiring or inside distributor to ground.
FMI 5 Open circuit of the distributor or short circuit to the power supply wiring or inside the distributor.
FMI 6 Closing wiring or inside distributor to ground.
Parameter:
Preheater air heater
Fault:
FMI 3 The voltage on the contact ЕВ5 of the engine block from the heating coil is above 65% of the battery voltage. Shorting the signal wire to the power supply. The helix relay is constantly activated. The spiral heats the air constantly, high power consumption, fast discharge of the battery. Possible destruction of the spiral due to overheating and ingress of elements of the spiral into the mechanism of valves of the engine.
FMI 4 The voltage on the contact ЕВ5 of the engine block from the heating coil is less than 7% of the battery voltage. Shorting of the signal wire to ground, defective spiral relay, broken power wire between the relay and the spiral. The heater does not work. engine start in cold weather is difficult.
FMI 5 The voltage on the contact ЕВ5 of the engine block is higher than 5 V. from the battery voltage. A break in a helix, signal wire, or mass. The heater does not work. engine start in cold weather is difficult.
Parameter:
Electric fuel pump
Fault:
FMI 4 Shorting of the control wire between the EA19 terminal of the engine block and the ground pump. The pump runs continuously.
FMI 5 An open wire to the fuel pump supply, fuse F41 blown, fuel pump defective. The fuel pump does not turn on.
Parameter:
Piston cooling valve
Fault:
FMI 3 Short circuit or high voltage circuit
FMI 4 Short Circuit or Low Voltage
FMI 5 open circuit or low current
Parameter:
EGR valve
Fault:
FMI 3 Short circuit or high voltage circuit
FMI 5 open circuit or low current
FMI 7 Incorrect Mechanical System Response
Parameter:
Sensor No. 2 supply (direct current +5 V)
Fault:
FMI 3 Short circuit or high voltage circuit
FMI 4 Short Circuit or Low Voltage
Parameter:
Idle switch
Fault:
FMI 3 Accelerator pedal fully released. The voltage at contact EB5 of the engine control unit (EECU) from the vehicle control unit (VECU) is higher than 75% of the battery voltage. Shorting the wire between the engine block and the vehicle control unit to power. The accelerator pedal sensor may malfunction.
FMI 4 Accelerator pedal depressed by more than 50%. The voltage on the EB4 contact of the engine block from the vehicle control unit is less than 25% of the battery voltage. Shorting the wire between the engine block and the vehicle control unit to ground. Possible accelerator pedal malfunction.
Parameter:
SAE J1939 data feed
Fault:
FMI 2 Messages over the SAE J1939 data channel are not transmitted. Break in data channel wiring. Short circuit of data channel wires to ground, to power supply or to each other. Instead of the data channel SAE J1939, the information channel SAE J1708 is used. The engine brake, preheating, the system maintain a given speed and power take-off does not work.
FMI 3 (D6B engine only) The engine block does not receive signals from the high pressure pump. The load on the communication channel is higher than normal, the injection pump is disconnected from the communication channel, the injection pump is faulty, the wiring is broken between the injection pump and the engine block, the engine block is faulty.
FMI 9 Shorting of the data channel wires between themselves, a malfunction of the control unit, partial damage to the wiring or broken contacts in the connector. Instead of the data channel SAE J1939, the information channel SAE J1708 is used. The engine brake, preheating, the system maintain a given speed and power take-off does not work.
FMI 11 Block ICE does not respond to the information transmitted over the data channel. Internal malfunction of the engine block. Instead of the data channel SAE J1939, the information channel SAE J1708 is used. Power take-off and the system maintain a given speed does not work.
FMI 12 There is no connection between the engine control unit and the vehicle control unit. Instead of the data channel SAE J1939, the information channel SAE J1708 is used. The engine brake, preheating, the system maintain a given speed and power take-off does not work.
FMI 13 (For D6B engine only) The injection pump does not receive signals from the engine block. The load on the data channel is above normal. Perhaps defective engine block.
Parameter:
Power supply 5 V
Fault:
FMI 3 The voltage on the EA4 contact of the engine block exceeds 5.5 V. A short to power. Oil pressure and boost indicators do not work. Active errors on the sensors of pressure of oil and pressurization.
FMI 4 The voltage on the EA4 contact of the engine block is below 4.5 V. A short to ground. Faulty boost pressure or oil sensor. Oil pressure and boost indicators do not work.
Parameter:
Program memory
Fault:
FMI 2 Error in the programming process or the engine block is faulty.
FMI 12 Faulty engine block.
Parameter:
Data Channel SAE J1587 / 1708
Fault:
FMI 12 Data channel is not working due to a malfunction of the engine control unit. Boost pressure, oil pressure, oil temperature, coolant temperature, tachometer readings are not working. Replace engine control unit.
Parameter:
Gauge memory
Fault:
FMI 2 Internal engine control unit malfunction. Reprogram the engine block, if the DTC remains active, replace the engine control unit.
FMI 12 Internal malfunction of the engine control unit. Replace the engine block.
Parameter:
Control block
Fault:
FMI 2, 8, 9, 11, 12, 13 Internal fault in the engine control unit. Replace control unit.
Parameter:
EGR cooler
Fault:
FMI 7 Cooler clogged or damaged. Perform the cleaning procedure.
Parameter:
Engine switch
Fault:
FMI 3 Shorting contact EA15 block the engine from the switch on the power wire. The engine is shutting down.
FMI 5 Breakage from a switch or a faulty switch. The engine is shutting down.
Parameter:
Piston cooling oil pressure
Fault:
FMI 0 Data is reliable, but is above normal
FMI 1 Data is reliable, but below normal
FMI 3 Short circuit or high voltage circuit
FMI 4 Short circuit or low voltage circuit
FMI 5 open circuit or low current
Parameter:
Mass flow rate for EGR
Fault:
FMI 0 The difference between the calculated EGR flow and the requested EGR flow is positive. The valve is stuck or moving with delay.
FMI 1 The difference between the calculated EGR flow and the requested EGR flow is negative. The valve is stuck or moving with delay. EGR cooler clogged.
FMI 7 Incorrect mechanical response.
FMI 14 Special Instructions.
Parameter:
Active transmission
Fault:
FMI 0 Data is reliable, but is above normal
Parameter:
Control unit temperature
Fault:
FMI 0 Engine block temperature too high. High fuel temperature, high ambient temperature.
FMI 4 Short to ground inside the engine block. Replace the engine block.
FMI 5 Short to positive or open inside the engine block. Replace the engine block.
Parameter:
Low range relay
Fault:
FMI 9 Incorrect Update Frequency
Parameter:
Range Lock Valve
Fault:
FMI 3 The current on the contact EB34 of the engine block exceeds 2.2 A. A short to the wire with a higher voltage.
FMI 4 The voltage on the contact EB34 of the engine block is lower than 30% of the battery voltage. A short to low voltage.
FMI 5 The voltage on contact EB34 of the engine block is in the range from 30 to 60% of the battery voltage. Open valve circuit.
Parameter:
Braking torque engine
Fault:
FMI 9 No signal from vehicle control unit (VECU). Malfunction of the data channel SAE J1939 or an internal error in the vehicle control unit (VECU).
Parameter:
Variable-geometry turbocharger drive temperature
Fault:
FMI 0 Driving conditions or the environment will affect the temperature rise of the drive. Check the temperature of the drive and its correct operation.
Parameter:
EPG shutter
Fault:
FMI 3 Short circuit or high voltage circuit
FMI 4 Short circuit or low voltage circuit
FMI 5 open circuit or low current
Parameter:
Coolant temperature above burrow
Fault:
FMI 0 Coolant temperature above 101 degrees. The antifreeze level is below normal, the thermostat is faulty, the radiator is clogged outside or inside, the intercooler is clogged outside, the fluid flow is weak, the water pump is faulty, the valve in the expansion drum upper cap is faulty, the fan is faulty, the temperature sensor is faulty. The mode of reducing engine power is activated.
Parameter:
Compression brake status
Fault:
FMI 1 Oil temperature below 55-60 degrees or defective oil temperature sensor.
FMI 3 Short circuit on EA33 terminal of the engine block from the VCB solenoid valve to the supply wire or short circuit inside the valve. Engine braking does not work.
FMI 4 A short on the EA33 terminal of the engine block from the VCB solenoid valve to ground. Engine braking occurs constantly.
FMI 5 An open circuit between the engine block and the VCB valve. Broken power wire or VCB valve power supply fuse blown. VCB solenoid valve may be faulty.
Parameter:
Turning off the shutter flap EPG No. 2
Fault:
FMI 3 A short in the wire from the EB36 contact of the engine block to the EPG valve to the supply wire or a short in the EPG valve itself.
FMI 4 Shorting of the wire from contact EB36 of the engine block to the EPG valve to ground. The engine brake is permanently activated.
FMI 5 Broken wire between the engine block and the EPG valve. Broken power wire or blown EPG valve power supply fuse. The EPG solenoid valve may be faulty.
Parameter:
EPG No. 1
Fault:
FMI 3 A short in the wire from the EB35 contact of the engine block to the EPG valve to the supply wire or a short in the EPG valve itself. The engine brake and heating function do not work.
FMI 4 Shorting of the wire from the EB35 contact of the engine block to the EPG valve to ground. The engine brake is permanently activated.
FMI 5 Broken wire between the engine block and the EPG valve. Broken power wire or blown EPG valve power supply fuse. The EPG solenoid valve may be faulty. The engine brake does not work.
Parameter:
NOx sensor
Fault:
FMI 2 Bad Data
FMI 3 Short circuit or high voltage circuit
FMI 5 open circuit or low current
FMI 9 Incorrect Update Frequency
FMI 12 Defective Component
FMI 13 Incorrect Calibration Value
FMI 14 Special Instructions
Parameter:
Urea pressure in the SCR system
Fault:
FMI 1 Data is reliable, but below normal
FMI 2 Bad Data
FMI 4 Short circuit or low voltage circuit
FMI 5 open circuit or low current
FMI 7 Incorrect Mechanical System Response
FMI 13 Incorrect Calibration Value
FMI 14 Special Instructions
Parameter:
Urea temperature in the SCR system
Fault:
FMI 0 Data is reliable but above normal
FMI 1 Data is reliable, but below normal
FMI 4 Short circuit or low voltage circuit
FMI 5 open circuit or low current
FMI 8 Wrong pulse frequency
FMI 14 Special Instructions
Parameter:
SCR Urea Filter Temperature
Fault:
FMI 0 Data is reliable, but is above normal
FMI 1 Data is reliable, but below normal
FMI 2 Bad Data
FMI 4 Short Circuit or Low Voltage
FMI 5 open circuit or low current
Parameter:
Urea level in the SCR system
Fault:
FMI 1 Data is reliable, but below normal
FMI 3 Short circuit or high voltage circuit
FMI 5 open circuit or low current
FMI 13 Incorrect Calibration Value
FMI 14 Special Instructions
Parameter:
Soot level
Fault:
FMI 0 Data is reliable, but is above normal
FMI 11 Unknown Malfunction
Parameter:
Cutoff valve in the SCR system
Fault:
FMI 3 Short circuit or high voltage circuit
FMI 4 Short circuit or low voltage circuit
FMI 5 open circuit or low current
FMI 7 Incorrect Mechanical System Response
FMI 14 Special Instructions
Parameter:
SCR nozzle system
Fault:
FMI 2 Bad Data
FMI 3 Short circuit or high voltage circuit
FMI 4 Short circuit or low voltage circuit
FMI 5 open circuit or low current
FMI 14 Special Instructions
Parameter:
Compressor Recirculation Valve
Fault:
FMI 3 Short circuit or high voltage circuit
FMI 4 Short circuit or low voltage circuit
FMI 5 open circuit or low current
FMI 7 Incorrect Mechanical System Response
Parameter:
Switch fan engine
Fault:
FMI 3 Short circuit or high voltage circuit
FMI 4 Short circuit or low voltage circuit
FMI 5 open circuit or low current
Parameter:
The level of ash in the particulate filter fuel
Fault:
FMI 0 Data is reliable, but is above normal
Parameter:
Water pump
Fault:
FMI 3 Short circuit or high voltage circuit
FMI 4 Short Circuit or Low Voltage
FMI 5 open circuit or low current
Parameter:
Voltage of the urea dosing unit of the SCR system
Fault:
FMI 3 Short circuit or high voltage circuit
FMI 4 Short Circuit or Low Voltage
FMI 12 Defective Component
FMI 14 Special Instructions
Parameter:
First exhaust gas temperature sensor
Fault:
FMI 2 Bad Data
FMI 4 Short circuit or low voltage circuit
FMI 5 open circuit or low current
Parameter:
Second exhaust gas temperature sensor
Fault:
FMI 2 Bad Data
FMI 4 Short circuit or low voltage circuit
FMI 5 open circuit or low current
Parameter:
Relative effective moment
Fault:
FMI 0 Data is reliable, but is above normal
FMI 1 Data is reliable, but below normal
Parameter:
Third exhaust temperature sensor
Fault:
FMI 2 Bad Data
FMI 4 Short circuit or low voltage circuit
FMI 5 open circuit or low current
FMI 10 Large fluctuations
Parameter:
Supply pressure sensor in the SCR system
Fault:
FMI 2 Bad Data
FMI 3 Short circuit or high voltage circuit
FMI 5 open circuit or low current
FMI 10 Large fluctuations
Parameter:
SCR Air Conditioning
Fault:
FMI 0 Data is reliable, but is above normal
FMI 7 Incorrect Mechanical System Response
FMI 14 Special Instructions (Periodic Heating Not Completed)
Parameter:
Low quality urea
Fault:
FMI 1 Data is reliable, but below normal
FMI 14 Special Instructions
Parameter:
Urea consumption
Fault:
FMI 1 Data is reliable, but below normal
FMI 14 Special Instructions
Parameter:
Stop dosing
Fault:
FMI 14 Special Instructions
Parameter:
Incorrect EGR Flow
Fault:
FMI 2 Bad Data
FMI 14 Special Instructions
Parameter:
EGR shutdown
Fault:
FMI 14 Special Instructions
Parameter:
High NOx content
Fault:
FMI 0 Data is reliable, but is above normal
FMI 14 Special Instructions
Parameter:
NOx monitoring failure
Fault:
FMI 2 Bad Data
FMI 14 Special Instructions
Parameter:
Regeneration of the filter particulates
Fault:
FMI 0 Data is reliable, but is above normal
FMI 1 Data is reliable, but below normal
Parameter:
Thermostat bypass valve
Fault:
FMI 0 Data is reliable, but is above normal
FMI 1 Data is reliable, but below normal
FMI 3 Short circuit or high voltage circuit
FMI 4 Short Circuit or Low Voltage
FMI 7 Incorrect Mechanical System Response
Parameter:
SCR Urea Tank Preheater Valve
Fault:
FMI 3 Short circuit or high voltage circuit
FMI 4 Short Circuit or Low Voltage
FMI 5 open circuit or low current
Parameter:
ACM control unit memory
Fault:
FMI 3 Short circuit to high voltage or high voltage (high internal voltage of the control unit)
FMI 4 Short circuit or low voltage (low internal voltage of the control unit)
FMI 12 Defective Component
Parameter:
SCR Urea Filter Heater
Fault:
FMI 3 Short circuit or high voltage circuit
FMI 4 Short circuit or low voltage circuit
FMI 5 open circuit or low current
Parameter:
Urea Heated Urea No. 2 SCR System
Fault:
FMI 3 Short circuit or high voltage circuit
FMI 4 Short circuit or low voltage circuit
FMI 5 open circuit or low current
Parameter:
The main relay of the control unit of the dosing system SCR
Fault:
FMI 3 Short circuit or high voltage circuit
FMI 4 Short Circuit or Low Voltage
FMI 5 open circuit or low current
FMI 6 Short to ground or high current
Parameter:
SCR Urea Pump Motor Frequency
Fault:
FMI 0 Data is reliable, but is above normal
FMI 1 Data is reliable, but below normal
FMI 10 Large oscillation (no signal from the pump)
Parameter:
SCR Urea Dosing Valve
Fault:
FMI 3 Short circuit or high voltage circuit
FMI 4 Short circuit or low voltage circuit
FMI 5 open circuit or low current
FMI 7 Incorrect Mechanical System Response
FMI 10 Large fluctuations
FMI 14 Special Instructions (Frequent Freezing)
Parameter:
SCR Urea System
Fault:
FMI 1 Data is reliable, but below normal
FMI 11 Unknown Malfunction
FMI 14 Special Instructions
Parameter:
SCR Urea Rate
Fault:
FMI 0 Data is reliable, but is above normal
FMI 1 Data is reliable, but below normal
Parameter:
Fuel cell pressure
Fault:
FMI 0 Data is reliable, but is above normal
FMI 1 Data is reliable, but below normal
FMI 4 Short Circuit or Low Voltage
FMI 7 Incorrect Mechanical System Response
FMI 12 Defective Component
Parameter:
Pressure reducing valve
Fault:
FMI 0 Data is reliable, but is above normal
FMI 7 Incorrect Mechanical System Response
FMI 11 Unknown Malfunction
FMI 14 Special Instructions
Parameter:
Pressure in the air injection system
Fault:
FMI 0 Data is reliable, but is above normal
FMI 1 Data is reliable, but below normal
Parameter:
Catalyst
Fault:
FMI 7 Incorrect Mechanical System Response
FMI 13 Incorrect Calibration Value
Parameter:
SCR Urea Cooling Valve
Fault:
FMI 3 Short circuit or high voltage circuit
FMI 4 Short circuit or low voltage circuit
FMI 5 open circuit or low current
FMI 7 Incorrect Mechanical System Response
Parameter:
Urea Heated Hose No. 3 SCR System
Fault:
FMI 3 Short circuit or high voltage circuit
FMI 4 Short Circuit or Low Voltage
FMI 5 open circuit or low current
Parameter:
Urea Heated Urea No. 1 SCR System
Fault:
FMI 3 Short circuit or high voltage circuit
FMI 4 Short Circuit or Low Voltage
FMI 5 open circuit or low current
Parameter:
Urea Heated Urea No. 4 SCR System
Fault:
FMI 3 Short circuit or high voltage circuit
FMI 4 Short Circuit or Low Voltage
FMI 5 open circuit or low current
Parameter:
SCR Urea Guide Valve
Fault:
FMI 3 Short circuit or high voltage circuit
FMI 4 Short Circuit or Low Voltage
FMI 5 open circuit or low current
FMI 7 Incorrect Mechanical System Response
Parameter:
Catalyst
Fault:
FMI 7 Incorrect Mechanical System Response
FMI 12 Defective Component
Parameter:
Heated urea in the SCR filter
Fault:
FMI 3 Short circuit or high voltage circuit
FMI 4 Short Circuit or Low Voltage
FMI 5 open circuit or low current
Parameter:
SCR Urea Injection
Fault:
FMI 7 Incorrect Mechanical System Response
Parameter:
There is no urea in the tank
Fault:
FMI 1 Data is reliable, but below normal
Parameter:
No response from other control units
Fault:
FMI 12 Defective Component
Parameter:
Wrong answer from other control units
Fault:
FMI 2 Bad Data
Parameter:
MID144 data channel
Fault:
FMI 9 Incorrect data refresh rate (No communication with car control unit MID144)
Parameter:
Data Channel MID140
Fault:
FMI 9 Incorrect data refresh rate (No communication with the control unit in the dashboard MID140)
Parameter:
MID136 data channel
Fault:
FMI 9 Incorrect data refresh rate (No communication with the braking system control unit ABS, EBS)
Parameter:
MID130 data channel
Fault:
FMI 9 Incorrect data refresh rate (There is no communication with the control unit of the gearbox MID130)
Parameter:
MID222 data channel
Fault:
FMI 9 Incorrect data refresh rate (There is no communication with the control unit of the gearbox MID222)
Parameter:
MID219 data channel
Fault:
FMI 9 Incorrect data refresh rate (There is no communication with the control unit of the gearbox MID219)
Parameter:
MID249 data channel
Fault:
FMI 9 Incorrect data refresh rate (There is no communication with the control unit of the gearbox MID249)
Parameter:
MID233 data channel, subnet number 1, SAE J1939
Fault:
FMI 9 Incorrect update rate
FMI 11 Unknown Malfunction
Parameter:
Data channel, subnet number 1, SAE J1939-1
Fault:
FMI 2 Bad Data
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