Transmission Code

SYMPTOM
P0740 - TORQUE CONVERTER CLUTCH CONTROL CIRCUIT

WHEN MONITORED
During Electronically Modulated Converter Clutch (EMCC) Operation.

SET CONDITION
A) Transmission must be in EMCC, with input speed > than 1750 RPM. TCC/L - R solenoid achieves the maximum duty cycle & can't pull engine RPM within 60 RPM of input speed.

B) Transmission is in FEMCC & engine slips TCC > than 100 RPM for 10 seconds.

POSSIBLE CAUSES
- Related DTC's present
- Intermittent operation
- Internal transmission problem - TCC out of range