VOLVO
CEM-U001300 - Medium Speed CAN Communication Bus (+) Low. General Failure Information. No sub type information
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?
On the V40 the positive wire of the medium speed CAN is shorted to earth, which disturbs communication between the control modules. The instrument lighting, gauges, central locking and climate control can then be affected. The fault most often lies in the wiring where it may have rubbed against the body.
Możliwe przyczyny
- Short circuit between the positive wire of the medium speed CAN and earth
Co możesz zrobić
- 1Note which functions have dropped out. Several systems dropping out at once points to a fault in the network
- 2Check the harness for chafing and pinch damage where it may have touched the body
- 3Check the connectors on the network for loose connections and corrosion
- 4With a diagnostic tool, read the fault codes from all control modules and see which ones show communication faults
- 5Use a multimeter to check that the positive wire has no contact with earth or the body along its length
- 6Gently flex the cable with the ignition on and see whether the functions change
Objawy, które możesz zauważyć4
- The instrument and button lighting does not work
- Some gauges do not work properly
- The central locking does not work
- The climate control does not work
Ogólne wskazówki dla właścicieli. Diagnostyka na samochodzie może wskazać inną przyczynę.