P0740

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) Transmissions 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