LEMON Manuals: Even more car manuals for everyone
Home >> Infiniti >> 2013 >> FX37 Base, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 5 (Automatic Transmission) >> DTC/Circuit Diagnosis >> DTC P1730: Interlock >> 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
P1730 Interlock The output speed sensor detects the deceleration of 12 km/h (7 MPH) or more for 1 second.
  • Harness or connectors (Solenoid valve circuit is open or shorted.)
  • 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
  • Hydraulic control circuit
NOTE: When the vehicle is driven fixed in second gear, a input speed sensor malfunction is displayed, but this is not a input speed sensor malfunction.