OBD-II code · Network
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.
Is it safe to drive with U0431?
Usually safe for short trips, but don’t ignore it: the underlying fault can get more expensive over time.
Common causes
- PossibleBCM software version mismatch
- Less likelyGateway module routing CAN messages incorrectly
- Less likelyCAN terminating resistor (120 Ω) drifted out of spec
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
Repair at a glance
- Difficulty
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 0.5–3 h
- Emissions test
- Usually unaffected
- Parts involved
- Body Control Module
Related codes
- U0422Invalid Data Received from Body Control Module
- U042EInvalid Data Received From Generator A Control Module
- U042FInvalid Data Received From Camshaft Position Control Module
- U0430Invalid Data Received from Tire Pressure Monitoring Sensor
- U0432Invalid Data Received from 4-Wheel Drive Clutch Control Module
- U0433Invalid Data Received From Front Distance Range Sensor — Single Sensor or Center
- U0434Invalid Data Received From Active Roll Control Module
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.