VOLVO
CEM-B104712 - Axle level Supply. General Electrical Failures. Circuit short to battery
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 monitors them. The fault shows that the supply wire to one or both sensors is shorted to battery voltage, so the signals cannot be used for the headlight setting. The fault is checked when the ignition is switched on.
Możliwe przyczyny
- The supply wire to one or both sensors is shorted to battery
- 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 level sensors are fully engaged and not corroded, and that the cables are not chafed
- 4Use a multimeter (ignition off, connectors unplugged) to check that the supply wires are not at battery voltage
- 5If you have a diagnostic tool, read the sensor values in live data and check whether either one stays stuck at its highest level
- 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.