DTC P0743: Torque Converter Clutch Solenoid/Trans Relay Circuits: Description

Circuits are monitored with ignition on and battery voltage more than 10 volts. DTC will set when an open or short condition is detected in Torque Converter Clutch (TCC) solenoid control circuit. Possible causes are: defective TCC solenoid, fused ignition switch output circuit open, TCC solenoid control circuit open or shorted, or defective PCM.