VOLVO
CEM-B110B77 - Rear door passenger side central locking motor. Mechanical Failures. Commanded position not reachable
System
Sentral elektronikk (CEM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
9 modellerS60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V60 (2011–), V60 Cross Country (2015–), V70 (2008–), XC60 (2009–), XC70 (2008–)
Hva betyr feilkoden?
The code is stored when the central locking motor in the passenger side rear door has not reached the correct position after two attempts, so that door does not lock as it should. The CEM tracks the position through switches in the lock units. The passenger side rear door then does not lock with the central locking.
Mulige årsaker
- Damaged switch that indicates the lock motor position
- The lock motor is stuck
Hva du kan gjøre
- 1If you have a diagnostic tool: read the fault codes in the driver and passenger door modules (DDM and PDM). Rear door faults also show in the front modules
- 2Test locking and unlocking a few times and watch which doors respond. Pause between attempts
- 3Check that the lock in this door moves freely and is not blocked by anything
- 4Look for chafing and loose connectors on the wiring to this lock. The door trim must come off, so leave that to a workshop
- 5If the fault returns, have a workshop with diagnostic equipment check the wiring and replace the lock unit if needed
Symptomer du kan merke2
- Passenger side rear door does not lock or unlock with the central locking
- Central locking does not work
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