VOLVO
CEM-2E04 - Comfort Relay, Signal too high
System
Sentral elektronikk (CEM)
Volvo-modeller feilkoden gjelder for
Feilkoden har ulik betydning avhengig av modell, årsmodell eller motor. Velg betydningen som gjelder din bil.
Gjelder følgende modeller:
5 modellerC30 (2007–2013), C30 Electric (2011–2013), C70 (2006–2013), S40 (2004–2013), V50 (2004–2013)
Hva betyr feilkoden?
The CEM has registered too high a signal from the output to the coil of the comfort relay. The usual cause is a damaged relay or a short to supply voltage in the relay drive circuit. The blower fan and the climate control may be affected.
Mulige årsaker
- A damaged relay
- A short to supply voltage in the relay drive circuit
Hva du kan gjøre
- 1Check the fuses for the comfort functions in the passenger compartment and engine bay. If one has blown, replace it once
- 2The comfort relay is inside the CEM box. Replace it only if you can do so safely, otherwise have a workshop do it
- 3Check that the connectors in the CEM and at the fan are seated and not corroded
- 4Use a multimeter to check that the wire to the comfort relay has no short to supply voltage
- 5After the work, clear the code and check that the fan works
Symptomer du kan merke3
- The blower fan does not work
- The climate control smells unusual
- The battery may show low voltage
Generell veiledning for bileiere. Feilsøking på bilen kan peke på en annen årsak.