Was bedeutet der Fehlercode CPM-E001?

Diagnose und Fehlercodedefinition für CPM-E001 (Volvo C30 (2007–2013), Volvo C30 Electric (2011–2013), Volvo C70 (2006–2013)). Steuergerätereparatur bei OBD Tuning.

VOLVO

CPM-E001 - Control module communication. Faulty communication

System

Verbrennungsheizung (CPM)

Volvo-Modelle, für die dieser Fehlercode gilt

Gilt für folgende Modelle:

5 Modelle

C30 (2007–2013), C30 Electric (2011–2013), C70 (2006–2013), S40 (2004–2013), V50 (2004–2013)

Modelle nach Baujahr und Motor anzeigen (5)

Was bedeutet der Fehlercode?

The heater control module cannot communicate on the CAN network, and it then disconnects itself from the network. It stays switched off until the power supply has been broken, and makes new attempts when the power is connected again. The fault may be caused by a short or an open circuit in the CAN wiring, or by an internal fault in the control module or in another module on the same part of the network.

Mögliche Ursachen

Short circuit between the CAN wires
Open circuit in one of the CAN wires
Internal fault in the heater control module
Internal fault in another control module on the same part of the CAN network

Was Sie tun können

1Check that the battery has good voltage, as low voltage can make control modules lose contact with the network.
2With the ignition off, check that the connectors to the heater are firmly seated and clean, as looseness can cause communication faults.
3If you have a diagnostic tool: read the fault codes in several control modules. Faults in several modules at the same time may point to a fault in the network.
4Do not replace control modules before a workshop has traced the network, as the fault may lie in the wiring or in another module.
5Have a workshop measure the CAN network with diagnostic equipment. The measurement requires central control modules to be disconnected.

Symptome, die Sie bemerken können2

Poor heating in the cabin
The parking heater does not work

Was der Fehler beeinflussen kann2

The control module disconnects itself from the CAN network (bus-off)
The control module makes new communication attempts when the power is connected again

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