P0740 OBD II Trouble Code Torque Converter Clutch Circuit Malfunction DTC

Symptoms of P0740 OBD II Trouble Code

  • Malfunction Indicator Lamp (MIL) illuminated (a.k.a. Check Engine Light)
  • Minimal decrease in fuel economy, this will not affect engine performance

Common Causes of P0740 OBD II Trouble Code

  • Wiring harness to transmission damaged, loose connection, open or shorted circuit
  • Torque converter clutch (TCC) solenoid
  • Transmission control module (TCM)