VOLVO
CEM-8C21 - Rear fog lamp. Signal too low
System
Zentralelektronik (CEM)
Volvo-Modelle, für die dieser Fehlercode gilt
Gilt für folgende Modelle:
5 ModelleC30 (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?
Although the code is named too low signal, the CEM registers too high a current draw on the output that feeds the rear fog lamps. That points to the signal wire to the fog lamps being shorted to ground.
Mögliche Ursachen
- The signal wire to the rear fog lamps is short-circuited to ground
Was Sie tun können
- 1Turn on the rear fog lamps. If they do not light, the fault is likely permanent; if they light but the code was stored earlier, it is intermittent
- 2Check that the rear fog lamp fuse is intact
- 3With the ignition off and the lamp connector unplugged, use a multimeter to check that the wire has no contact with ground (the body)
- 4Look for chafing and pinched spots along the rear cables, especially where they run through the wiring harness
- 5If the fault returns, have a workshop check the wiring and the module
Symptome, die Sie bemerken können1
- The rear fog lamps do not work
Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.