VOLVO
CPM-B1D2315 - Overheat Sensor. General Electrical Failures. Circuit short to battery or open
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 combustion preheater module (CPM) has registered a signal from the overheat protection thermostat that is too high. The cause may be a short to supply voltage in the cable, a break, a damaged thermostat or poor contact. 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 supply voltage
- Break in the cable between the CPM and the overheat protection thermostat
- Damaged overheat protection thermostat
- Contact resistance, oxidation or loose connections
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 carries no voltage when the heater is off; if it does, the cable is shorted to positive
- 4Use a multimeter to check the cable is intact between the heater connector and the thermostat connector; a break means the cable must be replaced
- 5If the fault returns, have a workshop measure the thermostat resistance
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.