Invalid Data Received from Vehicle Immobilizer Control Module
The ECU receives an authorisation message from the immobilizer that does not match the expected rolling code. Engine start is blocked.
Affected components
- Immobilizer module
- Ecm
Common causes
- High likelihood: Key not properly learned
- Medium likelihood: Software version mismatch
- 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
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.