Control Module Security Certificate Missing/Invalid
The control module's security certificate (used for authenticated communication, secure boot or vehicle anti-tamper) is missing or fails validation.
Affected components
- Control module
- Security module
Common causes
- High likelihood: Certificate not provisioned in module
- Medium likelihood: Certificate expired or revoked
- 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
- Reduced-power or limp mode may occur
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.