Network
generic / SAE
U0306
Software Incompatibility with Fuel Injector Control Module
The injector driver module identifies itself with a software version that does not match what the engine ECU expects. Engine may not start or runs roughly until both modules are reflashed to compatible versions.
SystemNetwork
Typegeneric / SAE
GroupU0
Range / number3 / 06
Possible causes
- Software flash incomplete or wrong file high
- Gateway module routing CAN messages incorrectly low
- CAN terminating resistor (120 Ω) drifted out of spec 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: 100–600 €
- Estimated time: 0.5–2.5 h
- Component: injector driver module
- Component: ecm
- MIL / check engine light
Sources
References
sae:J2012