OBD-II code · Network
U05B6 Invalid Data Received From Front Radar Module B
A receiving module detected implausible data from front radar module B. Distance/closing-speed values fail plausibility checks against camera/lidar and are rejected; ACC, AEB and FCW degrade.
Is it safe to drive with U05B6?
Usually safe for short trips, but don’t ignore it: the underlying fault can get more expensive over time.
Common causes
- Most likelyModule internal fault or sensor input drift
- PossibleSoftware version mismatch after replacement
- Less likelyGateway module routing CAN messages incorrectly
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
- 1–4 h
- Emissions test
- Usually unaffected
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Front Radar Module B
Related codes
- U05B5Invalid Data Received From Front Radar Module A
- U05B3Invalid Data Received From Comfort and Convenience Display B
- U05B4Invalid Data Received From Driver Monitoring System Module
- U05B7Invalid Data Received From Rear Radar Module A
- U05B8Invalid Data Received From Rear Radar Module B
- U05B9Invalid Data Received From Rear Radar Module C
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.