P0743

Tests 919 - 923:

Tests 924 - 925:

SYMPTOM
P0743 - TORQUE CONVERTER CLUTCH SOLENOID/TRANS RELAY CIRCUITS

WHEN MONITORED
Continuously with the 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
- Intermittent torque converter clutch solenoid
- TCC solenoid control circuit open
- TCC solenoid control circuit short to ground
- Torque converter clutch solenoid defective
- PCM defective (TCC solenoid control circuit)