VOLVO
CEM-6F71 - Switch, fuel tank filler cover. Signal too low
System
Central Electronic Module (CEM)
Volvo models this fault code applies to
Applies to the following models:
5 modelsS60 (2001–2009), S80 (1999–2006), V70 (2000–2008), V70 XC / XC70 (2001–2007), XC90 (2003–)
What does this fault code mean?
CEM checks whether the button for opening the fuel filler cover has become stuck. If CEM notes that the button is pressed for longer than normal, the fault code is set. The cause is either a button stuck in the pressed position or a defective light switch module.
Possible causes
- Button has stuck in the pressed position
- Defective light switch module (LSM)
What you can do
- 1Check that the fuel filler button in the light switch has not stuck in the pressed position, and press it once to see that it springs back
- 2Clear the fault code and road test the car to see whether it returns
- 3If the button works but the fault remains, a workshop should replace the light switch
Symptoms you may notice1
- No noticeable symptoms for the driver
General guidance for car owners. Diagnosis on the car can point to a different cause.