VOLVO
CPM-B1D3466 - Heater in lock out mode. Algorithm Based Failures. Signal has too many transitions / events
System
Forbrenningsvarmer (CPM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
2 modellerV40 (2013–), V40 Cross Country (2013–)
Vis modeller per årsmodell og motor (2)
Hva betyr feilkoden?
The heater has overheated more than ten times in a row, and the control module has therefore locked it in the switched-off state. The fault code may be set together with other fault codes, and the cause may lie in the cooling system, for example in a sensor, a thermostat or the pump.
Mulige årsaker
- Damaged coolant temperature sensor
- Damaged overheat protection thermostat
- Air or leakage in the cooling system
- Damaged water pump
Hva du kan gjøre
- 1With the ignition on, read the fault codes. Fix any other stored fault codes first, as they may be the cause.
- 2Check that the cooling system does not leak and that the hoses to the heater are firmly attached. A leak gives a low coolant level.
- 3If you have a diagnostic tool: watch the coolant temperature in live data while the heater runs, and see whether it rises and falls evenly.
- 4If the fault returns after these checks, have a workshop check the water pump and the overheat protection thermostat.
Symptomer du kan merke1
- The parking heater does not work
Hva feilen kan påvirke1
- The heater locks in the switched-off state after repeated overheating
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