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Home >> Infiniti >> 2015 >> QX60 Base, FWD >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission (Re0F10J) (Diagnostic Trouble Codes (DTCS), Symptom Diagnosis And R & I) (Except Hybrid) >> DTC/Circuit Diagnosis >> DTC P0740: Torque Converter >> DTC Logic >> DTC Detection Logic

DTC Detection Logic

DTC CONSULT screen terms
(Trouble diagnosis content)
DTC detection condition Possible causes
P0740 TORQUE CONVERTER
(Torque Converter Clutch Circuit/Open)
When all of the following conditions are satisfied and this state is maintained for 5 seconds:
  • TCM power supply voltage: More than 11 V
  • P0743 is not detected.
  • TCM judges that solenoid valve circuit is open.
  • Harness or connector

    (Torque converter clutch solenoid valve circuit is open or shorted to power supply)

  • Torque converter clutch solenoid valve