VOLVO
CEM-B109F09 - Average Quiescent Current. General Failure Information. Component Failures
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?
Information about the vehicle's power supply is stored in the central electronic module (CEM) and in the battery monitoring sensor (BMS). The fault shows that the average standby current draw of the vehicle is higher than normal, which may be due to a control module that does not sleep, an internal short in a module, or leakage current. The code alone does not indicate a fault in the CEM.
Mulige årsaker
- One control module does not go to sleep mode
- One control module has an internal short circuit
- Leakage current in wiring or connectors somewhere in the car
Hva du kan gjøre
- 1Clear the code and check whether it returns after the car has been parked for a few days
- 2Check that the doors, hatches and bonnet are fully closed when the car is parked and that no lights stay on
- 3Check that the battery terminal clamps are tight and clean, and that the battery holds its charge
- 4Remove any extra equipment fitted afterwards and see whether the fault clears
- 5Have a workshop measure the standby current with measuring equipment and find which control module or circuit draws too much
Symptomer du kan merke4
- The battery is dead
- The battery has low voltage
- The engine does not start or does not turn over
- The central locking does not work
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