Central Electronic Module (CEM)

CEM Code Charts
CEM-1A03 S-Power supply. Signal too low
CEM-1A05 X-Power supply. Signal too high
CEM-1A04 X-Power supply. Signal too low
CEM-1A06 15-Power supply. Signal too low
CEM-1A07 15-Power supply. Signal too high
CEM-1A08 50-Power supply. Signal missing
CEM-1A09 50-Power supply. Signal too high
CEM-1A51 Communication with the supplemental restraint system module (SRS). Signal missing
CEM-1A52 Communication with the driver door module (DDM). Signal missing
CEM-1A53 Communication with the passenger door module (PDM). Signal missing
CEM-1A54 Communication with the power seat module (PSM). Signal missing
CEM-1A55 Communication with the climate control module (CCM). Signal missing
CEM-1A56 Communication with the driver information module (DIM). Signal missing
CEM-1A57 Communication with the RTI module. Signal missing
CEM-1A58 Communication with the phone module (PHM). Signal missing
CEM-1A59 Communication with the audio module (AUM). Signal missing
CEM-1A5A Communication with the rear electronic module (REM). Signal missing
CEM-1A5C Communication with the upper electronic module (UEM). Signal missing
CEM-1A5E Communication with the steering wheel angle sensor module (SAS). Signal missing
CEM-1A5F Communication with the brake control module (BCM). Signal missing
CEM-1A61 Communication with the transmission control module (TCM). Signal missing, AW50/51 AWD
CEM-1A61 Communication with the transmission control module (TCM). Signal missing, AW55-50/51SN
CEM-1A62 Communication with the engine control module (ECM). Signal missing
CEM-1A63 Communication with the accessory electronic module (AEM). Signal missing
CEM-1A64 Communication with the differential electronic module (DEM). Signal missing
CEM-1A65 Communication with the suspension module (SUM). Signal missing
CEM-1A66 Communication with the infotainment control module (ICM). Signal missing
CEM-1C05 30-Power supply. Signal too low
CEM-1C06 Alternator control module (ACM). Electrical fault, B5254T2
CEM-1C06 Alternator control module (ACM). Electrical fault, B6294S2
CEM-1C06 Alternator control module (ACM). Electrical fault, B6294T
CEM-1C07 Alternator control module (ACM). Over heated, B5254T2
CEM-1C07 Alternator control module (ACM). Over heated, B6294S2
CEM-1C07 Alternator control module (ACM). Over heated, B6294T
CEM-1C08 Alternator control module (ACM). Mechanical fault, B5254T2
CEM-1C08 Alternator control module (ACM). Mechanical fault, B6294S2
CEM-1C08 Alternator control module (ACM). Mechanical fault, B6294T
CEM-1C0A Alternator control module (ACM). Voltage too high, B5254T2
CEM-1C0A Alternator control module (ACM). Voltage too high, B6294S2
CEM-1C0A Alternator control module (ACM). Voltage too high, B6294T
CEM-1D01 Control module. Internal fault
CEM-1D02 Control module. Internal fault
CEM-1D03 Control module not fully programmed. Internal fault
CEM-1D06 Control module. Configuration fault
CEM-1D07 Control module. Internal fault
CEM-1D08 Control module. Internal fault
CEM-1D09 Control module. Internal fault
CEM-1D0A Control module. Internal fault
CEM-1D0B Control module. Internal fault
CEM-1F00 ECM, software. Faulty signal
CEM-1F01 TCM, software. Faulty signal
CEM-3F02 Shift lock signal. Signal too high
CEM-3F03 Shift lock signal. Signal too low
CEM-3F81 Immobilizer signal. Signal too high, B5254T2
CEM-3F81 Immobilizer signal. Signal too high, B6294S2
CEM-3F81 Immobilizer signal. Signal too high, B6294T
CEM-3F82 Immobilizer signal. Signal too low, B5254T2
CEM-3F82 Immobilizer signal. Signal too low, B6294S2
CEM-3F82 Immobilizer signal. Signal too low, B6294T
CEM-3F83 Immobilizer signal. Signal too low
CEM-3F84 Immobilizer signal. Faulty signal
CEM-3F90 Fuel pump relay. Open-circuit or short-circuit to ground
CEM-3F91 Fuel pump relay. Short-circuit to supply voltage
CEM-4A31 Ejector sensor. Faulty signal
CEM-4A33 Fuel level sensor. Short-circuit to supply voltage or open-circuit
CEM-4A34 Fuel level sensor. Short-circuit to ground
CEM-4A35 Fuel level sensor. Faulty signal
CEM-4A37 Fuel level sensor. Short-circuit to supply voltage or open-circuit
CEM-4A38 Fuel level sensor. Short-circuit to ground
CEM-4F00 Reset button. Activated too long
CEM-4F01 Read button. Activated too long
CEM-4F41 Light emitting diode, left camera module. Signal too low
CEM-4F42 Light emitting diode, right camera module. Signal too low
CEM-4F43 Light emitting diode, left camera module. Signal too high
CEM-4F44 Light emitting diode, right camera module. Signal too high
CEM-4F45 Light emitting diode, left camera module. No signal
CEM-4F46 Light emitting diode, right camera module. No signal
CEM-4F47 Left camera module. Internal fault
CEM-4F48 Right camera module (RCM). Internal fault
CEM-4F90 Seat belt reminder. Signal too high
CEM-4F91 Seat belt reminder. Signal too low
CEM-4F92 Seat belt reminder. Signal missing
CEM-4F93 Seat belt reminder. Faulty signal
CEM-5A00 Sun sensor. Signal too high
CEM-5A01 Sun sensor. Signal too low
CEM-5F31 Coolant temperature sensor Open circuit or short circuit to supply
CEM-5F32 Coolant temperature sensor Short circuit to ground
CEM-5F36 Flame sensor Short circuit to ground
CEM-5F37 Factory set diagnostic trouble code (DTC). Faulty code
CEM-5F39 Flame sensor Flame interuption
CEM-5F3A Water pump. Signal too high
CEM-5F3B Water pump. Signal too low
CEM-5F3C Combustion fan. Signal too high
CEM-5F3D Combustion fan. Signal too low
CEM-5F3E Combustion fan. Faulty signal
CEM-5F3F Fuel pump (FP). Signal too high
CEM-5F40 Fuel pump (FP). Signal too low
CEM-5F41 Overheat protection thermostat. Signal too low
CEM-5F42 Power supply. Faulty
CEM-5F43 Power supply. Missing
CEM-5F46 Glow plugs. Faulty signal
CEM-5F47 Control module power supply. Signal too high
CEM-5F4C Power supply. Signal too low
CEM-5F4D On-board diagnostic (OBD) system. Too long time
CEM-5F4F Start attempt. Too many unsuccessful attempts
CEM-5F50 Overheat protection thermostat. Signal too high
CEM-6C17 Glass breakage loop. Signal missing
CEM-6C18 Glass breakage loop. Signal too high
CEM-6C41 Antenna/light ring-clock signal cable. Signal too high
CEM-6C42 Antenna / light ring - clock signal cable. Signal too low
CEM-6C43 Antenna / light ring - data communication cable. Signal too high
CEM-6C44 Antenna / light ring - data communication cable. Signal too low
CEM-6C45 Antenna/light ring. Communication problems
CEM-6C46 Antenna / light ring. Internal fault
CEM-6C48 Transponder type. Faulty signal
CEM-6C49 Transponder communication. Faulty signal
CEM-6E01 Switch, fuel tank filler cover. Faulty signal
CEM-6F01 Cruise control ON/OFF button. Activated too long
CEM-6F02 Cruise control Set+ button. Activated too long
CEM-6F03 Cruise control Set- button. Activated too long
CEM-6F04 Cruise control, Resume button. Activated too long
CEM-6F05 Cruise control, Cancel button. Activated too long
CEM-6F06 Cruise control. Faulty signal
CEM-6F07 Cruise control. Faulty signal
CEM-7A01 Scan- button. Activated too long
CEM-7A02 Scan+ button. Activated too long
CEM-7A03 Scan- button. Activated too long
CEM-7A04 Volume+ button. Activated too long
CEM-7A05 Phone YES button. Activated too long
CEM-7A06 Phone NO button. Activated too long
CEM-7A07 RTI Right button. Activated too long
CEM-7A08 RTI Left button. Activated too long
CEM-7A09 RTI Down button. Activated too long
CEM-7A0A RTI Up button. Activated too long
CEM-7A0B RTI Back button. Activated too long
CEM-7A0C RTI Enter button. Activated too long
CEM-8A01 Invalid switch position for the light switch. Faulty position
CEM-8A20 Low beam left. Signal too low
CEM-8A21 Low beam right. Signal too low
CEM-8A30 Daytime running lamps, left. Faulty signal
CEM-8A31 Daytime running lamps, right. Faulty signal
CEM-8A32 High beam flash. Activated too long
CEM-8B01 Parking lamps. Signal too low
CEM-8C11 Switch, front fog lamps. Activated too long
CEM-8C12 Switch, rear fog lamps. Activated too long
CEM-8D01 Stop lamps. Signal too low
CEM-8E01 Back-up (reversing) lamp switch. Faulty signal
CEM-8F02 Left-hand turn signal lamp. Signal too low
CEM-8F03 Right-hand turn signal lamp. Signal too low
CEM-8F04 Turn signal lamp. Faulty signal
CEM-8F05 Switch, hazard warning signal flashers. Activated too long
CEM-8F06 Switch, hazard warning signal flashers. Signal missing
CEM-8F07 Switch, hazard warning signal flashers. Signal too low
CEM-8F08 Engine control module (ECM). Signal too low
CEM-8F09 Engine control module (ECM). Signal too high
CEM-8F11 CEM Headlamp beam height control. Signal too high
CEM-8F12 CEM Headlamp beam height control. Signal too low
CEM-8F13 LSM Headlamp beam height control. Signal too high
CEM-8F14 LSM Headlamp beam height control. Signal too low
CEM-8F15 Xenon lamp left. Faulty signal
CEM-8F16 Xenon lamp left. Signal too low
CEM-8F17 Xenon lamp left. Faulty signal
CEM-8F18 Xenon lamp left. Signal too high / Signal missing
CEM-8F19 Xenon lamp right. Faulty signal
CEM-8F1A Xenon lamp right. Signal too low
CEM-8F1B Xenon lamp right Faulty signal
CEM-8F1C Xenon lamp right. Signal too high / Signal missing
CEM-8F1D X-supply relay circuit. Short-circuit to supply voltage
CEM-8F21 Windshield wiper. Faulty signal
CEM-8F22 Windshield wiper. Signal too low
CEM-8F23 Relay, windshield wiper. Signal too high
CEM-8F25 Relay, windshield wiper. Signal too low
CEM-8F26 Windshield wipers. Signal too high
CEM-8F2C Windshield wiper. Signal too high
CEM-8F2D Windshield wiper. Signal too low
CEM-8F2E Windshield wiper. Signal too low
CEM-8F30 Windshield wiper lever. Signal missing
CEM-8F31 Windshield wiper lever. Faulty signal
CEM-8F32 Windshield wiper lever. Faulty signal
CEM-8F44 Windshield wiper lever. Faulty signal
CEM-8F45 Windshield wiper lever. Faulty signal
CEM-8F51 Relay, headlamp wash / wipe. Signal too low
CEM-8F52 Relay, headlamp wash / wipe. Signal too low or signal missing
CEM-8FD0 Relay, auxiliary lamp. Signal too high
CEM-8FF0 Rain sensor button. Activated too long
CEM-8FF1 Light emitting diode, Rain sensor button. Signal too low
CEM-9C01 Glove compartment lighting. Signal too low
CEM-9C02 Antenna / light ring. Short-circuit to ground
CEM-9C03 Antenna / light ring. Signal missing
CEM-9E01 Interior lighting. Signal too low
CEM-9F20 Twilight sensor. Short-circuit to supply voltage
CEM-9F21 Twilight sensor. Short-circuit to ground
CEM-9F24 Rheostat. Signal too high
CEM-9F25 Rheostat. Signal too low
CEM-9F26 Interior lighting. Signal too low
CEM-DD00 Communication with the light switch module (LSM). Communication fault
CEM-DD01 Communication with the light switch module (LSM). Signal missing
CEM-DD02 Communication with the light switch module (LSM). Short-circuit to ground
CEM-DD10 Communication with the light switch module (LSM). Signal missing
CEM-DD11 Communication with the combustion preheater module (CPM). Signal missing
CEM-DD20 LIN-bus 2. Communication fault
CEM-DD21 LIN-bus 2. No signal
CEM-DD30 Communication with the alternator control module (ACM). Signal missing
CEM-DD31 Communication with left camera module (LCM). No signal
CEM-DD32 Communication with right camera module (LCM). No signal
CEM-DD40 Communication with the steering wheel module (SWM). Communication fault
CEM-DD41 Communication with the steering wheel module (SWM). Signal missing
CEM-DD50 Communication with the steering wheel module (SWM). Signal missing
CEM-DD51 Communication with the steering wheel module (SWM). Signal missing
CEM-DD52 Communication with the steering wheel module (SWM). Signal missing
CEM-DF01 CAN-H, low speed network. Signal too high
CEM-DF03 CAN-H, low speed network. Signal too high
CEM-DF04 CAN-L, low speed network. Signal too low
CEM-DF05 CAN-H, low speed network. Signal too low
CEM-DF06 CAN-L, low speed network. Signal too high
CEM-DF07 CAN-H, low speed network. Signal too high
CEM-DF11 CAN-H, high speed network. Signal too high
CEM-DF13 CAN-H, high speed network. Signal too high
CEM-DF14 CAN-L, high speed network. Signal too low
CEM-DF15 CAN-H, high speed network. Signal too low
CEM-DF16 CAN-L, high speed network. Signal too high
CEM-DF17 CAN-H, high speed network. Signal too high
CEM-E000 Control module communication
CEM-E001 Control module communication
CEM-XXXX Unknown diagnostic trouble code (DTC) for the current control module version