VOLVO
CEM-8A31 - Daytime running lamps, right. Faulty signal
System
Zentralelektronik (CEM)
Volvo-Modelle, für die dieser Fehlercode gilt
Dieser Fehlercode hat je nach Modell, Modelljahr oder Motor unterschiedliche Bedeutungen. Wählen Sie die Bedeutung, die für Ihr Fahrzeug gilt.
Gilt für folgende Modelle:
5 ModelleS60 (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?
The CEM feeds the right-hand daytime running lamp from its own output. If the current drawn on that output is too high, the signal wire to the daytime running lamp is probably in contact with ground, and the output is then switched off after repeated faults until the code is cleared.
Mögliche Ursachen
- The signal wire to the daytime running lamp is short-circuited to ground
Was Sie tun können
- 1Check that the daytime running lamp fuse is intact and that the lamp is firmly seated in its holder
- 2With the ignition off and the connector to the CEM unplugged, use a multimeter to check that the right daytime running lamp wire has no contact with ground (the body)
- 3Look for chafing and pinched areas on the wire, especially at the headlamp and where it enters the wiring harness
- 4Clear the code and start the car to see whether the fault comes back
- 5If the fault comes back, have a workshop with diagnostic equipment check the wiring and the module
Symptome, die Sie bemerken können1
- The daytime running lamp does not work
Was der Fehler beeinflussen kann1
- The output to the right daytime running lamp is switched off permanently after repeated faults, until the code is cleared
Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.