Was bedeutet der Fehlercode ECM-C422?

Diagnose und Fehlercodedefinition für ECM-C422 (Volvo C30 (2007–2013), Volvo C70 (2006–2013), Volvo S40 (2004–2013)). Steuergerätereparatur bei OBD Tuning.

VOLVO

ECM-C422 - Communication, central electronic module (CEM). Faulty signal

System

Motorsteuergerät (ECM)

Volvo-Modelle, für die dieser Fehlercode gilt

Gilt für folgende Modelle:

4 Modelle

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

Modelle nach Baujahr und Motor anzeigen (6)

Was bedeutet der Fehlercode?

The engine control module checks the communication with the central electronic module (CEM) and records the fault when it is not working. The cause can be the power supply, connectors or wiring, or a CEM that does not suit this car.

Mögliche Ursachen

Look for CAN-related fault codes in the CEM
No supply voltage to the CEM
Poor contact, contact resistance or oxidation in the connections
Breaks in the CAN network wiring to the CEM
Internal fault in a different unit on the same network section
The CEM is not made for this car, for example a used unit with other software or hardware

Was Sie tun können

1Read out the fault codes in the CEM first, and fix any CAN-related codes there
2Check that the fuses supplying the CEM are intact and that the battery has a good charge
3Check the connectors at the CEM and the engine control module for play and corrosion
4Look for breaks and chafing on the CAN wiring that runs to the CEM
5If the CEM has been replaced, check that it fits this exact car and has the right software
6Erase the fault code only once the faults are fixed, then road test the car to see whether it returns

Symptome, die Sie bemerken können2

A text message and warning symbol appear in the display
Warning lamps and warning signals behave abnormally, for example the Check engine lamp

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