VOLVO
BCM-U011400 - Failed communication with differential electronic module (DEM). General malfunction information. No information on malfunction type
System
Bremsestyring (BCM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
1 modellXC90 (2003–)
Hva betyr feilkoden?
The brake control module (BCM) is not receiving confirmation from the all-wheel drive control module (DEM) that the all-wheel drive is working. The fault applies to cars with all-wheel drive and DSTC. The stability function must not be activated in all-wheel drive, so when the signal is missing the stability systems are switched off. The fault most often lies in the all-wheel drive module or in the data network.
Mulige årsaker
- Fault in the all-wheel drive control module (DEM)
- Interference or intermittent breaks on the CAN network
Hva du kan gjøre
- 1Read codes in the central electronic module first, as this fault often follows other communication faults
- 2Read and troubleshoot codes in the all-wheel drive control module
- 3If the fault is intermittent only, clear the code and check that it does not return
- 4Check that the all-wheel drive module has the latest software; programming is carried out by a workshop according to procedure
- 5The brake system is safety-critical, so have a workshop carry out all work on the network and the modules
Symptomer du kan merke4
- General warning lamp on
- Traction control does not work
- Stability function does not work
- Anti-skid function does not work
Hva feilen kan påvirke3
- Stability control is disabled
- Traction control is disabled, including all-wheel drive traction control, without any warning lamp coming on
- Dynamic stability control (AYC) is disabled
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