P0743

Tests 1 - 2:

Tests 3 - 6:

Tests 7 - 10:

Test 11:

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
- P1765 - Transmission 12 Volt Supply Relay Control Circuit
- TCC solenoid control circuit open
- TCC solenoid control circuit shorted to ground
- TCC solenoid control circuit shorted to voltage
- Transmission control relay output circuit open
- Transmission control relay output circuit shorted to ground
- Transmission control relay output circuit shorted to voltage
- TCC solenoid
- Intermittent TCC solenoid
- Powertrain Control Module