Was bedeutet der Fehlercode CEM-8A0B?

Diagnose und Fehlercodedefinition für CEM-8A0B (Volvo S60 (2001–2009), Volvo S80 (1999–2006), Volvo V70 (2000–2008)). Steuergerätereparatur bei OBD Tuning.

VOLVO

CEM-8A0B - Relay, daytime running lamp. Signal too high

System

Zentralelektronik (CEM)

Volvo-Modelle, für die dieser Fehlercode gilt

Gilt für folgende Modelle:

5 Modelle

S60 (2001–2009), S80 (1999–2006), V70 (2000–2008), V70 XC / XC70 (2001–2007), XC90 (2003–)

Modelle nach Baujahr und Motor anzeigen (5)

Was bedeutet der Fehlercode?

CEM picks up a high signal on the status flag when the relay control for the daytime running lamp is activated. The fault code is set because the control to the relay is short-circuited to battery voltage, and the front lighting then does not work.

Mögliche Ursachen

Relay control for the daytime running lamp relay short-circuited to battery voltage

Was Sie tun können

1Switch the ignition off and check the daytime running lamp relay, making sure it is seated and its contacts are not corroded
2Use a multimeter to check that the wire to the relay control has no contact with battery voltage
3Remedy what is found and clear the fault code
4If no fault is found, try a new relay

Symptome, die Sie bemerken können1

The front lighting does not function

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