P0743

Tests 1 - 2:

Tests 3 - 6:

Tests 7 - 11:

Tests 12 - 16:

Tests 17 - 18:

SYMPTOM
P0743 - TORQUE CONVERTER CLUTCH SOLENOID/TRANSMISSION RELAY CIRCUITS

WHEN MONITORED
Continuously with the key ON.

SET CONDITION
This code will set if the voltage detected on the Torque Converter Clutch Solenoid Control circuit at the PCM is different than the expected voltage.

POSSIBLE CAUSES
- Determine if P-1765 condition is present
- Fused ignition switch output circuit open
- Transmission control relay output circuit shorted to voltage
- Intermittent torque converter clutch solenoid
- TCC transmission control relay output circuit shorted to ground
- Transmission control relay output circuit open
- PCM
- TCC solenoid circuit shorted to ground
- TCC solenoid control circuit open
- TCC solenoid
- PCM