VOLVO
CPM-0504 - Fuel pump. 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?
The CPM has registered a break in the cable to the heater fuel pump, so the signal is missing. The heater cannot be activated until the code has been cleared. The cause may be a broken cable, poor connections or a damaged pump.
Mulige årsaker
- Open circuit in the cable between the CPM and the fuel pump
- Contact resistance, oxidation or loose connections
- Damaged fuel pump
Hva du kan gjøre
- 1Clear the code and try starting the heater again
- 2If you have a diagnostic tool, activate the fuel pump; if it does not start, the fault is probably permanent, while a pump that starts points to an intermittent fault
- 3Check that the connectors at the fuel pump are tight and free from oxidation
- 4Use a multimeter to check that the cable between the heater connector and the pump connector is intact; a break means the cable must be replaced
- 5If the fault returns, have a workshop check the fuel pump and the wiring
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.