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Home >> Infiniti >> 2013 >> FX37 Base, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 5 (Automatic Transmission) >> DTC/Circuit Diagnosis >> DTC P0729: 6GR Incorrect Ratio >> DTC Logic >> DTC Detection Logic

DTC Detection Logic

WARNING: This page is about a different car, the 2013 Infiniti FX50. However, it is still accessible from the selected car via links, so may be relevant.
DTC Trouble diagnosis name DTC is detected if... Possible cause
P0729 Gear 6 Incorrect Ratio The gear ratio is:
  • 0.916 or more
  • 0.812 or less
  • Input clutch solenoid valve
  • Direct clutch solenoid valve
  • High and low reverse clutch solenoid valve
  • Front brake solenoid valve
  • Low brake solenoid valve
  • 2346 brake solenoid valve
  • Anti-interlock solenoid valve
  • Each clutch and brake
  • Output speed sensor
  • Input speed sensor 1, 2
  • Hydraulic control circuit