VOLVO
CEM-B104711 - Axle level Supply. General Electrical Failures. Circuit short to ground
Układ
Centralny moduł elektroniczny (CEM)
Modele Volvo, których dotyczy ten kod błędu
Dotyczy następujących modeli:
2 modeleV40 (2013–), V40 Cross Country (2013–)
Pokaż modele wg rocznika i silnika (2)
Co oznacza ten kod błędu?
The central electronic module (CEM) supplies the level sensors with voltage and uses their signals to control the headlights. The fault shows that the supply voltage to the sensors is too low, which can be caused by a short to ground in the supply wire or by a damaged sensor.
Możliwe przyczyny
- The supply cable to the sensors is shorted to ground
- 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 connectors at the front and rear level sensors are fully engaged and not corroded
- 4Use a multimeter (ignition off, connector unplugged) to check that the supply lead to the sensors has no connection to ground
- 5If you have a diagnostic tool, follow the sensor values in live data and check that they change when the front and rear of the car are pressed down and released
- 6If the fault remains, have a workshop check the wiring and the sensors
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 headlights use a fixed beam length instead of an adjusted one
- Side adjustment stays fixed straight ahead
Ogólne wskazówki dla właścicieli. Diagnostyka na samochodzie może wskazać inną przyczynę.