P0743 Torque Converter Clutch Solenoid Circuit

SYMPTOM
P-0743 TORQUE CONVERTER CLUTCH SOLENOID CIRCUIT

WHEN MONITORED
With the ignition key on.

SET CONDITION
An open or shorted condition is detected in the Torque Converter Clutch Solenoid Control Circuit.

POSSIBLE CAUSES
- Fused ignition switch output circuit open
- Torque converter clutch solenoid defective
- TCC solenoid circuit W/H intermittent defect
- TCC solenoid circuit W/H observable defect
- TCC solenoid control circuit open
- TCC solenoid control circuit short to ground
- PCM defective (TCC solenoid control circuit)