P0740

P0740 - TORQUE CONVERTER CLUTCH CONTROL CIRCUIT

When Monitored and Set Condition:
P0740 - TORQUE CONVERTER CLUTCH CONTROL CIRCUIT

When Monitored: During Electronically Modulated Converter Clutch (EMCC) Operation.

Set Condition: Transmission must be in EMCC, with input speed > than 1750 RPM.
TCC - L/R Solenoid achieves the maximum duty cycle and can not pull engine speed within 60 RPM of input speed. Also when the transmission is in FEMCC and the engine slips TCC than 100 RPM for 10 seconds.

POSSIBLE CAUSES:
RELATED DTC P0750 PRESENT
INTERMITTENT WIRING AND/OR CONNECTORS
INCORRECT FLUID LEVEL
INTERNAL TRANSMISSION PROBLEM - TCC OUT OF RANGE
L/R SOLENOID INOPERATIVE