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Home >> Infiniti >> 2014 >> QX80 AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS P0137 To P0456 >> DTC P0340, P0345: CMP Sensor >> DTC Logic >> DTC Detection Logic
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DTC Detection Logic

DTC No. Trouble diagnosis name (Trouble diagnosis content) DTC detecting condition Possible cause
P0340 CMP SEN/CIRC-B1 [Camshaft position sensor (bank 1) circuit]
  • The cylinder No. signal is not sent to ECM for the first few seconds during engine cranking.
  • The cylinder No. signal is not sent to ECM during engine running.
  • The cylinder No. signal is not in the normal pattern during engine running.
  • Harness or connectors

    [Camshaft position sensor (bank 1) circuit is open or shorted.]

    (APP sensor 2 circuit is shorted.)

    (Battery current sensor circuit is shorted.)

    [Crankshaft position sensor circuit is shorted.]

    (Refrigerant pressure sensor circuit is open or shorted.)

    (EVAP control system pressure sensor circuit is open or shorted.)

  • Camshaft position sensor (bank 1)
  • Accelerator pedal position sensor
  • Battery current sensor
  • Crankshaft position sensor
  • Refrigerant pressure sensor
  • EVAP control system pressure sensor
  • Camshaft (INT)
  • Starter motor
  • Starting system circuit
  • Dead (Weak) battery
P0345 CMP SEN/CIRC-B2 [Camshaft position sensor (bank 2) circuit]
  • Harness or connectors [Camshaft position sensor (bank 2) circuit is open or shorted.]
  • Camshaft position sensor (bank 2)
  • Camshaft (INT)
  • Starter motor
  • Starting system circuit
  • Dead (Weak) battery
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