BMW engine electronics fault codes
The 531 fault codes the engine electronics can store, and what each one means. Some codes mean different things in different versions of the module; tap a code to see which applies to your car.
On: 3 Series (E46), X3 (E83), 1 Series (E87), 3 Series (E90), 3 Series (E91)
- 48F2 48F2 CAN Bus A
- 48F3 48F3 CAN Bus A
- 4900 4900 Torque intervention DSC (nv)
- 4912 4912 CAN Bus B
- 4913 4913 CAN Bus B
- 4920 4920 Torque intervention transmission (nv)
- 4930 4930 Misfire detection cylinder 3
- 4940 4940 Misfire detection cylinder 4
- 4950 4950 Misfire detection cylinder 5
- 4960 4960 Misfire detection cylinder 6
- 4970 4970 (FRM3) Message
- 4971 4971 (FRM3) Message
- 4972 4972 (FRM3) Message
- 4973 4973 (FRM3) Message
- 4991 4991 Message (STAT_KOMBI, 0x1B4)
- 4992 4992 Message (STAT_KOMBI, 0x1B4)
- 4993 4993 Message (STAT_KOMBI, 0x1B4)
- 49A2 49A2 Message (A_TEMP_RELATIVZEIT, 0x310)
- 49A3 49A3 Message (A_TEMP_RELATIVZEIT, 0x310)
- 49F2 49F2 Message (WHEEL_SPEED, 0xCE)
- 49F3 49F3 Message (WHEEL_SPEED, 0xCE)
- 4A02 4A02 Terminal 15
- 4A03 4A03 Terminal 15
- 4A10 4A10 Bit serial data interface BSD
- 4A13 4A13 Bit serial data interface BSD
- 4A30 4A30 Multifunction steering wheel
- 4A31 4A31 Multifunction steering wheel
- 4A32 4A32 Multifunction steering wheel
- 4A33 4A33 Multifunction steering wheel
- 4A41 4A41 EWS interface error
- 4A42 4A42 EWS interface error
- 4A43 4A43 EWS interface error
- 4A51 4A51 EWS EEPROM alternating code storage faulty
- 4A60 4A60 EWS Manipulation
- 4A61 4A61 EWS Manipulation
- 4A62 4A62 EWS Manipulation
- 4A63 4A63 EWS Manipulation
- 4A70 4A70 Map FMTC_trq2qBas_MAP incorrect
- 4A80 4A80 Charge air hose monitoring
- 4AB2 4AB2 Electric heater
- 4AC2 4AC2 Electric heater 2 (nv)
- 4AD2 4AD2 Electric heater 3 (nv)
- 4AE0 4AE0 E-box fan
- 4AE1 4AE1 E-box fan
- 4AE2 4AE2 E-box fan
- 4AE3 4AE3 E-box fan
- 4AF0 4AF0 control unit temperature sensor
- 4AF1 4AF1 control unit temperature sensor
- 4B00 4B00 control unit temperature
- 4B10 4B10 (4728) idle smoothness control
- 4B11 4B11 (4729) idle smoothness control
- 4B22 4B22 electric fan
- 4B32 4B32 electric fan 2 (nv)
- 4B42 4B42 electric fan 3 (nv)
- 4B50 4B50 quantity calibration
- 4B60 4B60 quantity drift compensation
- 4B80 4B80 Rail Pressure Plausibility quantity controlled (nv)
- 4B90 4B90 Rail Pressure Monitoring at Engine Start
- 4BA0 4BA0 (275) Intake Air Temperature Sensor
- 4BA1 4BA1 (274) Intake Air Temperature Sensor
- 4BB0 4BB0 (12905) Supply Voltage Air Mass Meter
- 4BB1 4BB1 (12912) Supply Voltage Air Mass Meter
- 4BB5 4BB5 (12915) Air Mass Meter
- 4BB6 4BB6 (12916) Air Mass Meter
- 4BC0 4BC0 (258) Air Mass Meter
- 4BC1 4BC1 (259) Air Mass Meter
- 4BC2 4BC2 (257) Air Mass Meter
- 4BC5 4BC5 Intake Air Temperature Sensor (Reference Signal for Air Mass Meter)
- 4BC6 4BC6 Intake Air Temperature Sensor (Reference Signal for Air Mass Meter)
- 4BC7 4BC7 Intake Air Temperature Sensor (Reference Signal for Air Mass Meter)
- 4BD2 4BD2 Torque request ARS
- 4BD5 4BD5 Engine mount
- 4BD6 4BD6 Engine mount
- 4BD7 4BD7 Engine mount
- 4BD8 4BD8 Engine mount
- 4BE2 4BE2 Message (GEARBX_DATA, 0xBA)
- 4BE3 4BE3 Message (GEARBX_DATA, 0xBA)
- 4BE7 4BE7 Message (GEARBX_DATA2, 0x1A2)
- 4BE8 4BE8 Message (GEARBX_DATA2, 0x1A2)
- 4BF2 4BF2 Message (HEAT_AC, 0x1B5)
- 4BF3 4BF3 Message (HEAT_AC, 0x1B5)
- 4BF7 4BF7 Message (MILEAGE_RANGE, 0x330)
- 4BF8 4BF8 Message (MILEAGE_RANGE, 0x330)
- 4C00 4C00 Message (OP_CRCTLACC, 0x194)
- 4C01 4C01 Message (OP_CRCTLACC, 0x194)
- 4C02 4C02 Message (OP_CRCTLACC, 0x194)
- 4C03 4C03 Message (OP_CRCTLACC, 0x194)
- 4C06 4C06 Message (STAT_ARS, 0x1AC)
- 4C07 4C07 Message (STAT_ARS, 0x1AC)
- 4C08 4C08 Message (STAT_ARS, 0x1AC)
- 4C12 4C12 Message (STAT_DSC, 0x19E)
- 4C13 4C13 Message (STAT_DSC, 0x19E)
- 4C15 4C15 Message (TERMINAL, 0x130)
- 4C16 4C16 Message (TERMINAL, 0x130)
- 4C17 4C17 Message (TERMINAL, 0x130)
- 4C18 4C18 Message (TERMINAL, 0x130)
- 4C20 4C20 Message (TORQUE_DSC, 0xB6)
- 4C21 4C21 Message (TORQUE_DSC, 0xB6)
- 4C22 4C22 Message (TORQUE_DSC, 0xB6)
- 4C23 4C23 Message (TORQUE_DSC, 0xB6)
- 4C27 4C27 Message (VELOCITY, 0x1A0)
- 4C28 4C28 Message (VELOCITY, 0x1A0)
- 4C30 4C30 (FRM1) Message
- 4C31 4C31 (FRM1) Message
- 4C32 4C32 (FRM1) Message
- 4C33 4C33 (FRM1) Message
- 4C35 4C35 (FRM2) Message
- 4C36 4C36 (FRM2) Message
- 4C37 4C37 (FRM2) Message
- 4C38 4C38 (FRM2) Message
- 4C40 4C40 Particle filter heating
- 4C41 4C41 Particle filter heating
- 4C42 4C42 Particle filter heating
- 4C43 4C43 Particle filter heating
- 4CC0 4CC0 (FRM4) Message
- 4CC3 4CC3 (FRM4) Message
- 4CE0 4CE0 Particulate filter system
- 4CF3 4CF3 Particulate filter system
- 4D00 4D00 Particulate filter system
- 4D01 4D01 Particulate filter system
- 4D03 4D03 Particulate filter system
- 4D13 4D13 Particulate filter system
- 4D23 4D23 Particulate filter system
- 4D40 4D40 Particulate filter system
- 4D73 4D73 Particulate filter system
- 4DF0 4DF0 Message (TORQUE_GEARBX, 0xB5)
- 4DF1 4DF1 Message (TORQUE_GEARBX, 0xB5)
- 4DF2 4DF2 Message (TORQUE_GEARBX, 0xB5)
- 4DF3 4DF3 Message (TORQUE_GEARBX, 0xB5)
- CD87 CD87 CAN bus A
- CD8B CD8B CAN bus B
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