P0740 – Torque Converter Clutch Circuit Malfunction
Description
The torque converter clutch circuit is malfunctioning.
Need More Than Just the Fault Code?
A diagnostic scanner with live data, freeze-frame information and the right system access can help you investigate the actual cause before replacing parts.
Compare Diagnostic ScannersSymptoms
- Slipping
- Poor acceleration
- Harsh shifting
- Limp mode
- Check engine light
Causes
- Faulty TCC solenoid
- Damaged wiring
- Low fluid
- Torque converter issue
- TCM issue
Diagnosis
- Inspect wiring
- Test TCC solenoid
- Check fluid level
- Scan live data
- Inspect converter
Repair
- Replace TCC solenoid
- Repair wiring
- Refill fluid
- Replace converter
- Replace TCM
