VOLVO
CPM-3702 - Control module. Supply voltage 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?
The CPM has logged a supply voltage that stayed too low for some time, and this sets the code. The cause may be a poorly charged battery, poor contact at the module connections or a blown fuse. The heater cannot be activated until the code has been cleared.
Mulige årsaker
- Poorly charged battery
- Contact resistance in the module connections
- Blown fuse
Hva du kan gjøre
- 1Check the battery: charge it if needed and check that the terminals are tight and clean
- 2Replace the fuse feeding the CPM with a new one if it has blown
- 3Check that the connectors at the CPM are secure and free from oxidation
- 4If you have a diagnostic tool, read battery voltage in live data as the heater starts and see whether it drops sharply
- 5Clear the code and start the heater again; if nothing is found, it may have been a temporary fault
Symptomer du kan merke3
- Poor heating in the passenger compartment
- The parking heater does not work
- An information lamp is lit
Hva feilen kan påvirke1
- The heater cannot be activated until the fault code has been cleared
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