VOLVO
CPM-3141 - Engine coolant temperature (ECT) sensor. Signal too high / Signal missing
System
Forbrenningsvarmer (CPM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
5 modellerC30 (2007–2013), C30 Electric (2011–2013), C70 (2006–2013), S40 (2004–2013), V50 (2004–2013)
Hva betyr feilkoden?
Although the code name refers to a signal that is too high or a missing signal, the fault concerns the signal from the coolant temperature sensor, which is too low. The heater cannot be activated until the code has been cleared. The cause may be a break in the cable or a damaged sensor.
Mulige årsaker
- Break in the wire between the CPM and the coolant temperature (ECT) sensor
- Damaged engine coolant temperature (ECT) sensor
Hva du kan gjøre
- 1Clear the code and switch the ignition on; if the code returns, the fault is still present
- 2If you have a diagnostic tool, read the coolant temperature and compare it with the engine temperature; they should be roughly equal
- 3Check that the connectors at the preheater module and at the sensor are secure and free from oxidation
- 4Use a multimeter to check that the cable between the connectors is intact; a break means the cable must be repaired or replaced
- 5If the fault returns, have a workshop measure the sensor resistance and replace the sensor if needed
Symptomer du kan merke2
- Poor heating in the passenger compartment
- The parking heater does not work
Hva feilen kan påvirke1
- The heater cannot be activated until the fault code has been cleared
Generell veiledning for bileiere. Feilsøking på bilen kan peke på en annen årsak.