OBD-II code · Network (extended)
U3002 Vehicle Identification Number
The control module reports a problem with the stored Vehicle Identification Number (VIN) — missing, mismatched between modules, or invalid format.
Is it safe to drive with U3002?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyVIN mismatch after module replacement
- PossibleVIN not programmed in replacement module
- Less likelyGateway module routing CAN messages incorrectly
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
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 0.5–2 h
- Emissions test
- Usually unaffected
- Parts involved
- Control Module, Module Eeprom
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.