VOLVO
CPM-B1D2311 - Overheat Sensor. General Electrical Failures. Circuit short to ground
System
Verbrennungsheizung (CPM)
Volvo-Modelle, für die dieser Fehlercode gilt
Gilt für folgende Modelle:
2 ModelleV40 (2013–), V40 Cross Country (2013–)
Modelle nach Baujahr und Motor anzeigen (2)
Was bedeutet der Fehlercode?
The CPM has logged a signal from the overheat thermostat that reads too low. This may be caused by the cable being shorted to earth, poor connections or a damaged thermostat. The heater cannot be activated until the fault code has been cleared.
Mögliche Ursachen
- The cable between the CPM and the overheat protection thermostat is shorted to earth
- Contact resistance, oxidation or loose connections
- Damaged overheat protection thermostat
Was Sie tun können
- 1Clear the code and check whether it returns when the ignition is switched on
- 2Disconnect the connector at the overheat protection thermostat and check that the contacts are secure and free from oxidation
- 3Use a multimeter to check that the cable has no contact with the body (earth); if it does, the cable is shorted
- 4If you have a diagnostic tool, activate the heater and check that the temperature rises; if it does not, suspect the thermostat
- 5If the fault returns, have a workshop measure the thermostat resistance and check the wiring
Symptome, die Sie bemerken können1
- The parking heater does not work
Was der Fehler beeinflussen kann1
- The heater cannot be activated until the fault code has been cleared
Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.