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Home >> Infiniti >> 2014 >> QX60 Base, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 48 (Automatic Transmission (Re0F10J) (DTC/Circuit Diagnosis) (Except Hybrid) (2 Of 2)) >> DTC/Circuit Diagnosis >> DTC P0740: Torque Converter >> DTC Logic >> DTC Detection Logic

DTC Detection Logic

WARNING: This page is about a different car, the 2016 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.
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
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