Network
generic / SAE
U0308
Software Incompatibility with Body Control Module
The BCM software does not match what other vehicle modules expect. Comfort or lighting features can behave erratically until reflashing or coding is performed.
SystemNetwork
Typegeneric / SAE
GroupU0
Range / number3 / 08
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
- Component: vehicle gateway
Sources
References
sae:J2012