Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2007 Volvo S60 Base, FWDFACTORY OEM SERVICE PROCEDURE
Central Electronic Module (CEM) DTCS
CENTRAL ELECTRONIC MODULE (CEM) DTC INDEX
| Volvo Code | Description |
|---|---|
| CEM-1A03 | S-Power supply Signal too low |
| CEM-1A04 | X-Power supply. Signal too low |
| CEM-1A05 | X-Power supply Signal too high |
| 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; AW55-50/51SN) |
| CEM-1A62 | Communication with the engine control module (ECM). Signal missing |
| CEM-1A62 | Communication with the engine control module (ECM). Signal missing (B5204T5; B5254T4) |
| CEM-1A62 | Communication with the engine control module (ECM). Signal missing (B5244T5; B5254T2) |
| 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-1A67 | Communication with HCM control module Signal missing |
| CEM-1C05 | 30-Power supply. Signal too low |
| CEM-1C06 | Alternator control module (ACM). Electrical fault (B5204T5; B5254T4) |
| CEM-1C06 | Alternator control module (ACM). Electrical fault (B5244T5; B5254T2) |
| CEM-1C07 | Alternator control module (ACM). Over heated (B5204T5; B5254T4) |
| CEM-1C07 | Alternator control module (ACM). Over heated (B5244T5; B5254T2) |
| CEM-1C08 | Alternator control module (ACM). Mechanical fault (B5204T5; B5254T4) |
| CEM-1C08 | Alternator control module (ACM). Mechanical fault (B5244T5; B5254T2) |
| CEM-1C0A | Alternator control module (ACM). Voltage too high (B5204T5; B5254T4) |
| CEM-1C0A | Alternator control module (ACM). Voltage too high (B5244T5; B5254T2) |
| 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 |
| CEM-3F82 | Immobilizer signal. Signal too low |
| 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-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 | Rear fog switch Activated too long |
| CEM-8D01 | Stop lamps. Signal too low |
| CEM-8D03 | Brake light switch internal fault |
| CEM-8D04 | Internal fault in control module |
| 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 missing |
| 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. Faulty signal |
| CEM-DF11 | CAN-H, high speed network. Signal missing |
| 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. Faulty signal |
| CEM-E000 | Control module communication |
| CEM-E001 | Control module communication |
| CEM-XXXX | Unknown diagnostic trouble code (DTC) for the current control module version |
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.
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