Was bedeutet der Fehlercode CPM-B12B211?

Diagnose und Fehlercodedefinition für CPM-B12B211 (Volvo V60 (2011–), Volvo V60 (2011–)). Steuergerätereparatur bei OBD Tuning.

VOLVO

CPM-B12B211 - AUX Heater Coolant Diverter Valve. General Electrical Failures. Circuit short to ground

System

Verbrennungsheizung (CPM)

Volvo-Modelle, für die dieser Fehlercode gilt

Gilt für folgende Modelle:

1 Modell

V60 (2011–)

Modelle nach Baujahr und Motor anzeigen (2)

Was bedeutet der Fehlercode?

The combustion preheater module (CPM) measures the resistance across the coolant diverter valve for the auxiliary heater. The code is set when the valve has an electrical fault, here a short to earth. The heater's function is then blocked.

Mögliche Ursachen

Damaged cable to the distribution valve
Damaged connector
Distribution valve shorted to earth
Damaged distribution valve

Was Sie tun können

1Check the cable to the diverter valve visually for any damage
2Check that the connector at the diverter valve is 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
4Clear the code and start the heater again to see whether the fault returns
5If the fault is not fixed, have a workshop replace the diverter valve

Symptome, die Sie bemerken können5

The parking heater does not work
The rear of the cabin is not warm enough
The front of the cabin is not warm enough
The heater does not work
The cabin heats up slowly

Was der Fehler beeinflussen kann1

The heater's function is blocked

Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.