VOLVO
BCM-U000155 - High Speed CAN Communication Bus. System Programming Failures. Not configured
System
Bremsestyring (BCM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
3 modellerV40 (2013–), V40 Cross Country (2013–), V60 (2011–)
Hva betyr feilkoden?
The control modules on the CAN network listen for an identity number that the central electronic module sends out regularly. The brake control module (BCM) has not received the expected number, or its configuration ID does not match the one being sent. It then cannot communicate correctly with the other modules.
Mulige årsaker
- Short circuit between the CAN wires
- Open circuit in one of the CAN wires
- Internal fault in a different module on that section of the CAN network
- Internal fault in the brake control module
- Incorrect configuration ID, for example a used module not intended for the car
- Open circuit in the CAN wires between the brake control module and the central electronic module
Hva du kan gjøre
- 1Read codes in the central electronic module and the other modules; these should be troubleshot first, as this code often follows other communication faults
- 2Check that the correct brake control module is fitted for the car, especially if a used module has been installed
- 3Have a workshop measure the CAN wires against ground, against supply voltage and against each other, looking for damage
- 4Clear the codes only once the other faults have been repaired, and check that the code does not return
- 5The brake system is safety-critical, so have a workshop carry out all work on the network and the module
Symptomer du kan merke5
- ABS warning lamp lit and ABS does not work
- Brake circuit warning lamp lit
- Traction control warning lamp lit
- Stability function does not work
- Cruise control will not engage
Hva feilen kan påvirke3
- The brake control module switches itself off and stays off until the power supply is broken and restored
- ABS, stability control and traction control are disabled
- Dynamic stability control (AYC) is disabled
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