VOLVO
CEM-8F24 - Wiper motor module (WMM). Jammed
System
Central Electronic Module (CEM)
Volvo models this fault code applies to
Applies to the following models:
5 modelsC30 (2007–2013), C30 Electric (2011–2013), C70 (2006–2013), S40 (2004–2013), V50 (2004–2013)
What does this fault code mean?
The CEM talks to the wiper motor module (WMM), which has registered that a windscreen wiper has stuck. The cause is something blocking the wiper mechanically, so the wipers do not move as they should.
Possible causes
- One of the wipers has jammed in its position
What you can do
- 1Check that the wiper blades and linkage arms are not blocked, for example by ice, snow or an object
- 2With the ignition on, activate the wipers: if the blades move across the glass the fault is intermittent, if they do not move it is permanent
- 3Clear the code once the obstruction is gone and check that the wipers work
- 4If the fault returns although nothing blocks the wipers, have a workshop check the wiper control module
Symptoms you may notice1
- The windscreen wipers do not work
General guidance for car owners. Diagnosis on the car can point to a different cause.