Network
generic / SAE
U0302
Software Incompatibility with TCM
A control module has detected that its software/calibration is incompatible with the transmission control module. Often appears after a TCM swap or partial flash.
SystemNetwork
Typegeneric / SAE
GroupU0
Range / number3 / 02
Possible causes
- Software/calibration mismatch with TCM high
- Used TCM from different vehicle fitted 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: 80–800 €
- Estimated time: 0.5–3 h
- Component: tcm
- Component: control module
- MIL / check engine light
Sources
References
sae:J2012