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HOMESERVICE MANUALSINFINITI2019Q70 3.7 LUXE, AWDREPAIR AND DIAGNOSISENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROL SYSTEM (3.7L) (DTC/CIRCUIT DIAGNOSIS) (4 OF 9)DTC/CIRCUIT DIAGNOSISDTC P0340, P0345: CMP SENSOR (PHASE)DTC LOGICDTC DETECTION LOGIC
2019 Infiniti Q70 3.7 Luxe, AWD

DTC Detection Logic

2019 Infiniti Q70 3.7 Luxe, AWDSECTION DTC Detection Logic
NOTE: If DTC P0340 is displayed with DTC P0643, first perform the trouble diagnosis for DTC P0643. Refer to DTC Logic .

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

P0340

Camshaft position sensor (PHASE) (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

    [CMP sensor (PHASE) (bank 1) circuit is open or shorted.]

  • Camshaft position sensor (PHASE) (bank 1)
  • Camshaft (INT)
  • Starter motor
  • Starting system circuit
  • Dead (Weak) battery

P0345

Camshaft position sensor (PHASE) (bank 2) circuit
  • Harness or connectors

    [CMP sensor (PHASE) (bank 2) circuit is open or shorted.]

  • Camshaft position sensor (PHASE) (bank 2)
  • Camshaft (INT)
  • Starter motor
  • Starting system circuit
  • Dead (Weak) battery
  • Sensor power supply 2 circuit
RENDER: 1.0x

NO RELATED

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Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.