VOLVO
CEM-4F41 - Seat belt buckle, right rear seat. Signal too high
System
Central Electronic Module (CEM)
Volvo models this fault code applies to
This fault code has different meanings depending on model, model year or engine. Select the meaning that applies to your car.
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 monitors the right rear belt buckle. If the voltage in the signal wire is too high, the code is set. The information lamp may light, and a message may appear in the display.
Possible causes
- A short to supply voltage in the signal wire between the buckle and the CEM
- A short to supply voltage in the connector
- A short inside the seat belt buckle
- Cross-connected signal wires between the buckle and the CEM
What you can do
- 1Safety: the seat belt system is part of the crash protection. Do not work on the wiring or the buckle yourself. Have a workshop check the wires
- 2Look for chafed or pinched cables at the rear right seat belt, without removing anything
- 3Check that the belt latches and releases normally and that the buckle is not damaged
- 4After the work, clear the code and check that the information lamp goes out
Symptoms you may notice2
- The information lamp is lit
- A message appears in the display
General guidance for car owners. Diagnosis on the car can point to a different cause.