VOLVO
CEM-8F2D - Wipers. Signal too low. Intermittent fault
Układ
Centralny moduł elektroniczny (CEM)
Modele Volvo, których dotyczy ten kod błędu
Ten kod błędu ma różne znaczenie w zależności od modelu, rocznika lub silnika. Wybierz znaczenie, które dotyczy Twojego samochodu.
Dotyczy następujących modeli:
5 modeliS60 (2001–2009), S80 (1999–2006), V70 (2000–2008), V70 XC / XC70 (2001–2007), XC90 (2003–)
Co oznacza ten kod błędu?
The fault is intermittent: on an earlier occasion the CEM registered that the wiper stayed somewhere on the glass too long, while the steering wheel module (SWM) had not asked for it to run. It is no longer present, but the cause may be a signal wire shorted to ground, or a damaged wiper motor.
Możliwe przyczyny
- Signal wire between the CEM and the rain sensor shorted to ground
- Signal wire from the wiper motor position sensor to the CEM shorted to ground
- Damaged windscreen wiper motor
- Signal wire to the rain sensor may be pinched under the base of the interior mirror
Co możesz zrobić
- 1Clear the code and check whether it returns; an intermittent fault can be a temporary disturbance
- 2Check that the wipers have not stuck on the glass
- 3Look for an intermittent short to ground in the signal wires to the rain sensor and the wiper motor position sensor
- 4Check that the connectors are firmly seated and clean
- 5If the fault returns, have a workshop check the wiring and replace the wiper motor if needed
Objawy, które możesz zauważyć2
- The wiper motor does not work, and the wiper may have stuck on the glass
- The rain sensor does not work
Na co może wpływać usterka2
- The wipers run at low speed for a while and then stop anywhere on the glass
- After several repeats the wipers stand still for a while before the cycle starts again
Ogólne wskazówki dla właścicieli. Diagnostyka na samochodzie może wskazać inną przyczynę.