VOLVO
CEM-U002812 - Extended CAN Communication Bus. General Electrical Failures. Circuit short to battery
Układ
Centralny moduł elektroniczny (CEM)
Modele Volvo, których dotyczy ten kod błędu
Dotyczy następujących modeli:
4 modeleS60 (2011–), V60 (2011–), V60 Cross Country (2015–), XC60 (2009–)
Pokaż modele wg rocznika i silnika (4)
Co oznacza ten kod błędu?
The fault code means that one of the wires in the extended CAN network has contact with voltage. The extended network is the part where the control modules for the park assist camera, blind spot system and rear cross traffic alert talk to the rest of the car. Voltage on a CAN wire disturbs the signals, so the systems on that network may not work until the fault is gone.
Możliwe przyczyny
- Chafed or pinched wiring lets one extended-network wire touch a live wire
Co możesz zrobić
- 1Read and note the fault codes in all control modules, clear them and road test the car to see whether the code returns
- 2Switch the ignition off and inspect the wiring for chafing, pinch damage and connectors that are loose or corroded
- 3Use a multimeter to confirm the extended-network wires have no contact with voltage. Wiggle harness and connectors during the test
- 4If the code returns, have a workshop with diagnostic equipment measure the voltage drop on the CAN wires. Replace the CEM only if testing shows it is faulty
Objawy, które możesz zauważyć3
- Park assist camera does not work
- Blind spot monitoring (BLIS) does not function
- Cross Traffic Alert (CTA) does not work
Ogólne wskazówki dla właścicieli. Diagnostyka na samochodzie może wskazać inną przyczynę.