VOLVO
DEM-U012100 - Lost Communication With Brake Control Module. General Failure Information. No sub type information
Układ
Moduł napędu na cztery koła AWD (DEM)
Modele Volvo, których dotyczy ten kod błędu
Dotyczy następujących modeli:
8 modeliS60 (2011–), S80 (2007–), V40 Cross Country (2013–), V60 (2011–), V60 Cross Country (2015–), V70 (2008–), XC60 (2009–), XC70 (2008–)
Co oznacza ten kod błędu?
The four-wheel drive control module (DEM) continuously receives information from the brake control module (BCM), including the speed of each wheel, over CAN communication. If communication with the brake control module is lost, the code is set. The fault may lie in the brake control module, in the communication cable, or in the connectors between them.
Możliwe przyczyny
- Open circuit in the communication cable
- Communication cable shorted to ground
- Communication cable shorted to voltage
- Contact resistance or oxidation in the connections
- Damaged brake control module (BCM)
Co możesz zrobić
- 1Check that the fuses are intact; their locations are in the owner's manual or on the fuse box cover
- 2Test drive the vehicle to see if the fault returns, and note whether the brakes feel different
- 3If you have a diagnostic tool, read the brake control module fault codes first and remedy them before clearing this code
- 4Check the connectors on the communication cable for oxidation and loose fit, and follow the cable for chafing and damage
- 5The braking system is safety-critical: if the fault remains or the brakes feel different, have a workshop check the brake control module and the communication
Objawy, które możesz zauważyć1
- Four-wheel drive does not work
Na co może wpływać usterka2
- Four-wheel drive is disengaged
- Four-wheel drive has reduced function
Ogólne wskazówki dla właścicieli. Diagnostyka na samochodzie może wskazać inną przyczynę.