Error code

OBD2 P0744

OBD2P0744
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.

What it means

Torque Converter Clutch Circuit Intermittent.

Severity

highCan drive but may experience transmission issues.

Summary

P0744 indicates an intermittent issue with the torque converter clutch (TCC) solenoid circuit, which affects how the TCC operates in automatic transmissions.

Symptoms

  • Transmission slipping or delayed engagement
  • Reduced fuel efficiency

Common Causes

  • Damaged, burnt, shorted, disconnected, or corroded wiring and connectors
  • Defective torque converter lockup clutch control solenoid(s)
  • Failed PCM or TCM

Diagnosis

  1. Check for damaged wiring and connectors in the TCC circuit.
  2. Inspect the torque converter lockup clutch control solenoid(s).

Fixes

  • Replace faulty wiring, connectors, or solenoids

FAQ

Can I drive with P0744?

You can drive but may experience transmission issues. It's best to address the issue promptly.

What causes P0744?

Common causes include damaged wiring, faulty solenoids, or a malfunctioning PCM/TCM.

View source

Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.

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