VOLVO
CEM-3F0B - Reverse gear inhibit. Signal too low
System
Sentral elektronikk (CEM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
4 modellerC30 (2007–2013), C70 (2006–2013), S40 (2004–2013), V50 (2004–2013)
Hva betyr feilkoden?
This variant applies to the C30, C70, S40 and V50. The CEM checks the reverse gear inhibitor. The fault is set if the circuit is shorted to ground. Reverse gear may then be possible to engage even while the car is rolling forwards.
Mulige årsaker
- The signal cable to the reverse gear inhibitor is shorted to ground
Hva du kan gjøre
- 1With the ignition on, try to engage reverse gear and check whether the inhibitor activates
- 2Check that the connectors at the reverse gear inhibitor are seated and not corroded or chafed
- 3Use a multimeter to check that the signal wire to the inhibitor is not shorted to ground
- 4After the work, clear the code and check that the reverse gear inhibitor works
Symptomer du kan merke1
- Reverse gear can be engaged even though the car is rolling forwards
Generell veiledning for bileiere. Feilsøking på bilen kan peke på en annen årsak.