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.
Affected components
- Front radar module a
Common causes
- High likelihood: Module internal fault or sensor input drift
- Medium likelihood: Software version mismatch after replacement
- Low likelihood: Gateway module routing CAN messages incorrectly
Possible 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
Diagnostic notes
- The malfunction indicator lamp may illuminate
- A drive cycle may be required after repair
Related codes
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.