Network
generic / SAE
U0431
Invalid Data Received from Body Control Module
Other modules receive implausible body status data (e.g. all doors reported closed while ajar). Comfort and lighting features can behave inconsistently.
SystemNetwork
Typegeneric / SAE
GroupU0
Range / number4 / 31
Possible causes
- BCM software version mismatch medium
- 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: 80–800 €
- Estimated time: 0.5–3 h
- Component: body control module
Sources
References
sae:J2012