Was bedeutet der Fehlercode CEM-U025700?

Diagnose und Fehlercodedefinition für CEM-U025700 (Volvo S60 (2011–), Volvo S80 (2007–), Volvo V60 (2011–)). Steuergerätereparatur bei OBD Tuning.

VOLVO

CEM-U025700 - Lost Communication With Front Controls / Display Interface Module. General Failure Information. No sub type information

System

Zentralelektronik (CEM)

Volvo-Modelle, für die dieser Fehlercode gilt

Gilt für folgende Modelle:

6 Modelle

S60 (2011–), S80 (2007–), V60 (2011–), V70 (2008–), XC60 (2009–), XC70 (2008–)

Modelle nach Baujahr und Motor anzeigen (6)

Was bedeutet der Fehlercode?

The fault code means that the control module storing the fault has no working link to the front display module (HLDF), or the link is disturbed. The front display may then fail to fold up or light. The fault may be intermittent, so the function should be checked again if it starts working.

Mögliche Ursachen

No voltage feed to the front display module (HLDF)
Broken ground wire to the HLDF
Contact resistance in the connections
Open or shorted CAN wiring
A module not intended for the car, such as a used unit with other software or hardware

Was Sie tun können

1Turn on the navigation system. The display should fold up and its backlight should come on. If it does, power and CAN communication are fine and the fault is intermittent
2Check the fuse for the circuit
3Check the supply voltage and the body connection, and confirm the connectors are seated
4If the fault returns, have a workshop replace or check the front display module. Replace the CEM only if testing has shown it is damaged

Symptome, die Sie bemerken können1

Front display does not work

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