VOLVO
CEM-8C20 - Rear fog lamp. Faulty signal
Układ
Centralny moduł elektroniczny (CEM)
Modele Volvo, których dotyczy ten kod błędu
Dotyczy następujących modeli:
5 modeliC30 (2007–2013), C30 Electric (2011–2013), C70 (2006–2013), S40 (2004–2013), V50 (2004–2013)
Co oznacza ten kod błędu?
The CEM feeds the rear fog lamps straight from one output. It has registered a power draw on that output that is lower than expected, which may be caused by a break, a short to battery voltage, or a lamp that is faulty or missing.
Możliwe przyczyny
- The signal wire to the rear fog lamps is short-circuited to battery voltage
- Open circuit in the signal wire to the rear fog lamps
- One or more lamps are faulty or missing
Co możesz zrobić
- 1Switch on the rear fog lamps. If they stay dark the fault is likely permanent; if they light but the code was stored earlier, it is intermittent
- 2Check that the rear fog bulbs are intact and sit properly in their holders
- 3With the ignition off, use a multimeter to check that the wire to the rear fog lamps is unbroken and has no battery voltage
- 4Look for chafing and pinched spots along the rear cables
- 5If the fault remains, have a workshop with diagnostic equipment check the wiring and the module
Objawy, które możesz zauważyć2
- The rear fog lamps do not work
- The rear fog lamps stay lit constantly
Ogólne wskazówki dla właścicieli. Diagnostyka na samochodzie może wskazać inną przyczynę.