Network
generic / SAE
U0141
Lost Communication with Body Control Module A
A second body control module (BCM "A") has dropped off the bus. Several comfort, lighting and locking functions stop working until the BCM is back online.
SystemNetwork
Typegeneric / SAE
GroupU0
Range / number1 / 41
Possible causes
- BCM A unpowered high
- CAN wiring to BCM A broken medium
- Gateway module routing CAN messages incorrectly low
Symptoms
- Multiple warning lights may illuminate
- Affected modules may go into limp mode or shut down
- Specific functions inoperative depending on module
- Diagnostic tools may show communication faults
Inspection / repair
- Difficulty: hard
- DIY: shop recommended
- Estimated cost: 80–1500 €
- Estimated time: 0.5–6 h
- Component: body control module
- Component: can bus wiring
- MIL / check engine light
Sources
References
sae:J2012