Fault code index · high
P0740
TCC malfunction
TCC malfunction
Documented for: 2.0L gasoline; 2.5L/3.0L gasoline · System(s): TRANS EOBD, TRANS OBD II · Factory MIL flag: 2 · Default action: TCM Default: –No TCC control
Common causes
- J-Gate adjustment incorrect Transmission oil level low Transmission mechanical failure
- J Gate – incorrect setting Transmission oil level low Transmission mechanical failure
Quick checks
- Confirm freeze-frame and conditions when the code set
- Compare live sensor values vs expected (unplugged/biased sensors are common)