Network
generic or reserved
U3033
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.
SystemNetwork
Typegeneric or reserved
GroupU3
Range / number– / 33
Possible causes
- Certificate not provisioned in module high
- Certificate expired or revoked 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: 100–800 €
- Estimated time: 0.5–3 h
- Component: control module
- Component: security module
- MIL / check engine light
- limp mode possible
Sources
References
sae:J2012