Network
generic / SAE
U0326
Software Incompatibility With Vehicle Immobilizer Control Module
A module reports a software version mismatch with the vehicle immobilizer control module — typically after replacing one of the modules without programming the new unit to match the rest of the network. The engine may refuse to start.
SystemNetwork
Typegeneric / SAE
GroupU0
Range / number3 / 26
Possible causes
- Module replaced without programming high
- Wrong part number for the vehicle 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: medium
- DIY: shop recommended
- Estimated cost: 50–800 €
- Estimated time: 0.5–3 h
- Component: immobilizer module
- MIL / check engine light
- limp mode possible
Sources
References
sae:J2012