VOLVO
CEM-B104F17 - Switch Polling Pullup. General Electrical Failures. Circuit voltage above threshold
System
Sentral elektronikk (CEM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
2 modellerV40 (2013–), V40 Cross Country (2013–)
Vis modeller per årsmodell og motor (2)
Hva betyr feilkoden?
The CEM keeps watch on a group of switches and contacts, including those for the doors, bonnet and brake lights. The fault is set when the CEM reads the signal as meaning that all of these have been active for too long. The code does not necessarily mean the CEM is faulty; it can also be set for other reasons.
Mulige årsaker
- Internal fault in the CEM
- Insufficient battery voltage
Hva du kan gjøre
- 1Switch the ignition off and on once, then read off the codes again
- 2Check the battery charge and that the terminal clamps are tight and free from corrosion
- 3Check that the connectors to the doors, tailgate and brake lights are fully engaged and not damaged
- 4If you have a diagnostic tool, follow in live data how the status of the doors, tailgate and brake pedal changes when you open, close and press the brake
- 5If the code comes back and stays, have a workshop with diagnostic equipment check the central electronic module
Symptomer du kan merke5
- The tailgate or trunk lid is hard to open
- Hazard warning lights do not work
- Passenger compartment lighting does not work
- Automatic engine start and stop does not work
- Tail lights or brake lights do not work
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