VOLVO
CEM-6E01 - Switch, fuel tank filler cover. Faulty signal
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 talks to the light switch module (LSM). If the LSM reports that the fuel filler opening button has been held on for too long, the fault code is set. The fault shows as the fuel filler cap not locking or unlocking. The code may be set if the button is stuck or if the communication with the LSM is faulty.
Possible causes
- Damaged switch for opening the fuel filler cover
- Communication fault with the light switch module (LSM)
What you can do
- 1Check that the fuel filler button does not stick or stay jammed in the activated position
- 2Clear the fault code and road test the car to see whether it returns
- 3If the fault returns and the button works, a workshop should check the communication with the light switch module
- 4If the button is damaged, a workshop should replace it
Symptoms you may notice1
- Fuel filler cap does not lock or unlock
General guidance for car owners. Diagnosis on the car can point to a different cause.