Question 1

What does P0743 mean?

Accepted Answer

P0743 - Torque Converter Clutch Circuit Electrical. Electrical fault in TCC solenoid circuit.

Question 2

What are the symptoms of P0743?

Accepted Answer

Check engine light, TCC not engaging, Reduced fuel economy, Possible shudder

Question 3

What causes P0743?

Accepted Answer

TCC solenoid coil failure, Wiring issue, Connector corrosion, TCM driver failure

Question 4

How much does it cost to fix P0743?

Accepted Answer

Typical repair cost: $150-$1,000. Check wiring to TCC solenoid before assuming solenoid failure.

P0743 — Torque Converter Clutch Circuit Electrical

Don't guess — diagnose P0743 the right way