VOLVO
CPM-B1D2386 - Overheat Sensor. Bus Signal / Message Failures. Signal invalid
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 an excessive temperature gap between the overheat thermostat and the sensor. The heater is then deactivated and the code is set. The cause may be air or a leak in the cooling system, a damaged water pump, a damaged coolant temperature sensor or a damaged overheat protection thermostat.
Mögliche Ursachen
- Air or leakage in the cooling system
- Damaged water pump
- Damaged coolant temperature sensor
- Damaged overheat protection thermostat
Was Sie tun können
- 1Check that the cooling system does not leak and that there is no air in it
- 2If you have a diagnostic tool, activate the water pump; if it does not start, the fault is probably permanent, while a pump that starts points to a temporary fault
- 3Check that the temperatures at the thermostat and the sensor roughly agree once the engine is warm
- 4If the fault returns, have a workshop measure the thermostat resistance and replace it if needed
Symptome, die Sie bemerken können1
- The parking heater does not work
Was der Fehler beeinflussen kann2
- The heater is deactivated when the code is set
- If the heater is activated again, it makes a new start attempt
Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.