VOLVO
CPM-3002 - Engine coolant temperature (ECT) sensor. Signal too low
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 low, the fault relates to the signal from the coolant temperature sensor that the module registers as too high. The CPM responds to it, and the heater cannot be activated until the code has been cleared.
Mulige årsaker
- Contact resistance, oxidation or loose connections in the connectors
- 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
- 4If 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
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