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Home >> Infiniti >> 2009 >> EX35 Base, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 14 (Automatic Transmission) >> Component Diagnosis >> P1730: A/T Interlock >> DTC Logic >> DTC Detection Logic
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DTC Detection Logic

WARNING: This page is about a different car, the 2008 Infiniti EX35. However, it is still accessible from the selected car via links, so may be relevant.
DTC DETECTION LOGIC CHART

DTC Item (CONSULT-III screen terms) A/T CHECK indicator lamp judgment flicker Diagnostic item is detected when... Possible cause
P1730 A/T INTERLOCK 12th Except during shift change, the gear position and ATF pressure switch states are monitored and comparative judgment made.
  • Harness or connectors (Solenoid and switch circuit is open or shorted.)
  • Low coast brake solenoid valve
  • ATF pressure switch 2
NOTE: When the vehicle is driven fixed in 2nd gear, a turbine revolution sensor malfunction is displayed, but this is not a turbine revolution sensor malfunction.