VOLVO
CEM-U002811 - Extended CAN Communication Bus. General Electrical Failures. Circuit short to ground
System
Sentral elektronikk (CEM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
4 modellerS60 (2011–), V60 (2011–), V60 Cross Country (2015–), XC60 (2009–)
Vis modeller per årsmodell og motor (4)
Hva betyr feilkoden?
The fault code means that one of the wires in the extended CAN network has contact with ground (the car body). 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. Contact with ground disturbs the signals, and the systems on that network can stop working.
Mulige årsaker
- Chafed or pinched wiring lets one extended-network wire touch ground
Hva du kan gjøre
- 1Read 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 check the extended CAN wiring for chafing, pinch damage and loose connectors
- 3With the battery negative lead disconnected, use a multimeter to confirm the wires have no contact with ground. Twist the harness during the test
- 4If the fault remains after the wiring check, have a workshop with diagnostic equipment measure the voltage drop in the wires
Symptomer du kan merke3
- Park assist camera does not work
- Blind spot monitoring (BLIS) does not function
- Cross Traffic Alert (CTA) does not work
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