Powertrain
generic / SAE
P0614
ECM and TCM Incompatible
The ECM and TCM exchange identification or calibration data over the powertrain bus and detect that they are not a valid pair - typically appears after replacing one of the modules with a unit from a different vehicle variant.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number6 / 14
Possible causes
- Replacement part from wrong variant high
Symptoms
- Check engine light on
- Possible limp mode or no-start
- Multiple follow-up faults across modules
- Reset/relearn may be needed after repair
Inspection / repair
- Difficulty: medium
- DIY: shop recommended
- Estimated cost: 200–1500 €
- Estimated time: 1–4 h
- Component: ecm
- Component: tcm
- MIL / check engine light
Sources
References
sae:J2012