VOLVO
CEM-B104422 - Rear Axle Sensor. General Signal Failures. Signal too high
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:
7 modeliS60 (2011–), S80 (2007–), V60 (2011–), V60 Cross Country (2015–), V70 (2008–), XC60 (2009–), XC70 (2008–)
Co oznacza ten kod błędu?
The central electronic module (CEM) monitors the rear axle level sensor. The signal from the sensor is higher than the permitted range compared with the supply voltage, which the CEM treats as a fault. The headlight height and side adjustment are therefore affected by the wrong value.
Możliwe przyczyny
- The signal cable to the rear sensor is shorted to battery voltage
- Open circuit in the ground lead to the sensor
- Damaged sensor
Co możesz zrobić
- 1Read off and note the code, clear it and carry out a short test drive to see whether it returns
- 2Check that the fuses for the headlight level control are intact
- 3Check that the connector at the rear sensor is fully engaged and not corroded, and that the cable is not chafed
- 4Use a multimeter (ignition on, connector unplugged) to check that the signal wire is not connected to battery voltage
- 5With a diagnostic tool, watch the rear sensor value in live data as the rear is pressed: it should change smoothly, not stay at its highest value
- 6If the fault remains, have a workshop check the wiring and the sensor
Objawy, które możesz zauważyć2
- Headlight side adjustment does not follow the steering wheel
- Headlight height adjustment does not work or is set wrongly
Na co może wpływać usterka2
- The headlight beam stays at a fixed level instead of being adjusted
- Side adjustment stays fixed straight ahead
Ogólne wskazówki dla właścicieli. Diagnostyka na samochodzie może wskazać inną przyczynę.