VOLVO
CEM-8A20 - Low beam left. Signal too low
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 central electronic module (CEM) supplies the left-hand low beam directly from one output. The module has registered a current draw on that output that is too high, which points to the signal wire to the lamp being shorted to ground. If the fault keeps returning over several ignition cycles, the output is switched off completely until the code is cleared.
Mögliche Ursachen
- The signal wire to the left low beam lamp is short-circuited to ground
Was Sie tun können
- 1Check that the low beam fuse is intact and that the left bulb sits firmly in its holder
- 2With the ignition off and the connector to the left low beam unplugged, use a multimeter to check that the wire has no contact with ground (the body)
- 3Look for chafed or pinched spots along the wire, especially where it enters the headlamp and the wiring harness. A chafed spot can make contact with the body
- 4Clear the code and switch on the low beam to see whether the fault returns
- 5If the fault returns, have a workshop with diagnostic equipment check the wiring and the module
Symptome, die Sie bemerken können1
- The left low beam does not work
Was der Fehler beeinflussen kann1
- The output to the left low beam 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.