Network
generic / SAE
U05B5
Invalid Data Received From Front Radar Module A
A receiving module detected implausible data from front radar module A. Distance/closing-speed values fail plausibility checks against camera/lidar and are rejected; ACC, AEB and FCW degrade.
SystemNetwork
Typegeneric / SAE
GroupU0
Range / number5 / B5
Possible causes
- Module internal fault or sensor input drift high
- Software version mismatch after replacement medium
- Gateway module routing CAN messages incorrectly 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: 400–2500 €
- Estimated time: 1–4 h
- Component: front radar module a
- MIL / check engine light
- drive cycle required
Sources
References
sae:J2012