Was bedeutet der Fehlercode CEM-DE64?

Diagnose und Fehlercodedefinition für CEM-DE64 (Volvo C30 (2007–2013), Volvo C30 Electric (2011–2013), Volvo C70 (2006–2013)). Steuergerätereparatur bei OBD Tuning.

VOLVO

CEM-DE64 - Communication with the phone module (PHM). Signal missing

System

Zentralelektronik (CEM)

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 CEM has lost contact with the phone module (PHM), so the phone functions and Volvo On Call do not work fully. The cause is most often supply, earth or a connector at the PHM. A break in the LS-CAN wiring can also give the same fault.

Mögliche Ursachen

No supply to the phone module (PHM)
Open circuit in the earth wire to the PHM
Contact resistance in the connections
Open circuit in the LS-CAN wires to the PHM
The PHM does not suit the car, for example a used module with other software or hardware

Was Sie tun können

1Switch on the infotainment system and press the phone button. If no request for a phone number appears on the display, the PHM probably has no supply or earth
2Check the infotainment fuse in the engine bay fuse box and the PHM fuse in the CEM. If one has blown, check its circuit for a short to earth
3Use a multimeter to check that the wire between the fuse and the PHM has no break and that the earth wire to the earth point is intact
4Check the PHM connector for contact resistance, oxidation and damage
5With a diagnostic tool, read the PHM ID. If it reads, the communication is probably fine and the fault may be intermittent and harder to find
6After the repair, clear the fault code and check that the phone function works

Symptome, die Sie bemerken können1

No or reduced Volvo On Call function

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