Network
generic / SAE
U0322
Software Incompatibility with Body Control Module B
A second body control module (BCM "B") is running software that other modules do not accept. Some comfort and convenience functions stop working until coded correctly.
SystemNetwork
Typegeneric / SAE
GroupU0
Range / number3 / 22
Possible causes
- Incompatible flash after BCM swap high
- Gateway module routing CAN messages incorrectly low
- CAN terminating resistor (120 Ω) drifted out of spec 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: 100–600 €
- Estimated time: 0.5–2.5 h
- Component: body control module
Sources
References
sae:J2012