VOLVO
CEM-B105292 - Rear Washer Switch. Component Failures. Performance or incorrect operation
System
Central Electronic Module (CEM)
Volvo models this fault code applies to
Applies to the following models:
2 modelsV40 (2013–), V40 Cross Country (2013–)
Show models by year and engine (2)
What does this fault code mean?
The central electronic module (CEM) runs the washer fluid pump when the steering wheel module (SWM) requests washing. The fault shows that the rear window washer switch has been active for longer than it should, which suggests it has stuck in the active position. Rear window washing is then switched off.
Possible causes
- The rear wash control has jammed in the on position
What you can do
- 1Read off and note the code, clear it and check whether it returns when you use the rear window washer
- 2Press the rear washer control a few times and check that it returns fully and does not stay down
- 3Check that the washer fluid level is sufficient and that the fuses for the washer pump are intact
- 4If you have a diagnostic tool, read the rear washer switch in live data and check that it changes from off to on and back when you wash
- 5With a diagnostic tool, activate the rear washer pump and listen for it to start and stop
- 6If the fault remains, have a workshop check the washer control and the steering wheel module
Symptoms you may notice1
- The rear window washer does not work
What the fault can affect1
- Rear window washing is switched off
General guidance for car owners. Diagnosis on the car can point to a different cause.