VOLVO
CEM-B129A86 - LIN Bus "D". Bus Signal / Message Failures. Signal invalid
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 CEM shares a LIN bus with the wiper motor module (WMM), the rain sensor (RSM) and the battery monitoring sensor (BMS). The fault is stored when messages sent on the bus become corrupt. The fault can affect the automatic start/stop function and the wipers, and
Możliwe przyczyny
- Contact resistance, oxidation or poor contact in the connector terminals and connections
- Damaged wiper motor module (WMM)
- Damaged battery monitoring sensor (BMS)
- Damaged rain sensor (RSM)
Co możesz zrobić
- 1Check that the battery is charged and that the fuses are intact
- 2Check the connectors at the wiper motor module, the rain sensor and the battery monitoring sensor: oxidised or loose connectors should be cleaned and pressed in
- 3Check the LIN wire between the units for chafing and pinch damage
- 4Have a workshop with diagnostic equipment establish which unit on the LIN bus is sending incorrect messages
- 5If the fault remains, have a workshop check the rain sensor, the wiper module and the battery monitoring sensor
Objawy, które możesz zauważyć3
- The automatic start/stop function does not work while driving
- The automatic start/stop function does not work at idle
- Yellow warning symbol and text message in the display
Na co może wpływać usterka1
- If the wipers are switched on they run at the lowest speed
Ogólne wskazówki dla właścicieli. Diagnostyka na samochodzie może wskazać inną przyczynę.