P0743 Torque Converter Clutch Solenoid/Trans Relay Circuits

SYMPTOM
P-0743 TORQUE CONVERTER CLUTCH SOL/TRANS RELAY CKTS

WHEN MONITORED
Continuously with the key on.

SET CONDITION
This code is set if the voltage detected on the TCC Solenoid Control Circuit at the PCM is different than the expected voltage.

POSSIBLE CAUSES
- No possible causes remaining
- PCM defective
- Fused ignition switch output circuit open
- TCC sol control circuit shorted to ground
- TCC solenoid control circuit open
- TCC solenoid defective
- TCC solenoid harness observable defect
- TCC solenoid wiring harness intermittent defect
- TCC solenoid wiring harness intermittent defect (drive)