VOLVO
BCM-U000188 - High Speed CAN Communication Bus. Bus Signal / Message Failures. Bus off
Układ
Sterownik układu hamulcowego (BCM)
Modele Volvo, których dotyczy ten kod błędu
Dotyczy następujących modeli:
6 modeliC30 (2007–2013), C70 (2006–2013), S40 (2004–2013), V40 (2013–), V40 Cross Country (2013–), V50 (2004–2013)
Pokaż modele wg rocznika i silnika (7)
- Volvo C30 (2007–2013)2011–2013Tylko silnik: D4162T, D5204T, D5204T5
- Volvo C70 (2006–2013)2011Tylko silnik: D5204T, D5204T5
- Volvo C70 (2006–2013)2012–2013Wszystkie silniki oprócz: B5254T7
- Volvo S40 (2004–2013)2011–2012Tylko silnik: D4162T, D5204T, D5204T5
- Volvo V40 (2013–)2013–2015
- Volvo V40 Cross Country (2013–)2013–2015
- Volvo V50 (2004–2013)2011–2012Tylko silnik: D4162T, D5204T, D5204T5
Co oznacza ten kod błędu?
The brake control module (BCM) has gone into bus-off on the CAN network, meaning it has lost contact with the other control modules. The fault arises when communication is disturbed by another module or when the brake module's own messages disturb the network. As communication cannot be restored while driving, the code can usually only be read out when the fault is intermittent.
Możliwe przyczyny
- Short circuit between the CAN wires
- Open circuit in one of the CAN wires
- Internal fault in another module on the same part of the CAN network
- Internal fault in the brake control module
Co możesz zrobić
- 1Read codes in the central electronic module and in the other modules on the CAN network, and troubleshoot those first
- 2Measure the resistance in the CAN wires against ground and supply voltage and look for shorts and open circuits
- 3Have a workshop identify which module disturbs the network by disconnecting them one at a time, and replace it if it communicates incorrectly
- 4Check that the connectors on the network are secure and that the wiring does not run close to sources of interference
- 5The brake system is safety-critical, so have a workshop carry out all work on the network and the modules
Objawy, które możesz zauważyć5
- ABS warning lamp lit
- Brake circuit warning lamp lit
- Traction control warning lamp lit
- Stability function does not work
- Traction control does not work
Na co może wpływać usterka3
- The brake control module switches itself off and stays off until the power supply is broken and restored
- Stability control and traction control are disabled
- Dynamic stability control (AYC) is disabled
Ogólne wskazówki dla właścicieli. Diagnostyka na samochodzie może wskazać inną przyczynę.