P0740

Symptom:
P0740-TORQUE CONVERTER CLUTCH CONTROL CIRCUIT

Test 1-2:

Test 3-5:

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

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

POSSIBLE CAUSES
- RELATED DTC'S PRESENT
- INTERNAL TRANSMISSION
- INTERMITTENT WIRING AND CONNECTORS