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Home >> Infiniti >> 2008 >> QX56 AWD >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System - DTCS P0327 To P1145 >> DTC P1140, P1145: IVT Control Position Sensor >> On Board Diagnosis Logic

On Board Diagnosis Logic

DTC DETECTING CONDITION CHART

DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1140
1140 (Bank 1)		 Intake valve timing control position sensor circuit An excessively high or low voltage from the sensor is sent to ECM.
  • Harness or connectors (Intake valve timing control position sensor circuit is open or shorted)
  • Intake valve timing control position sensor
  • Crankshaft position sensor (POS)
  • Camshaft position sensor (PHASE)
  • Accumulation of debris to the signal pick-up portion of the camshaft sprocket
P1145
1145 (Bank 2)
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