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Home >> Infiniti >> 2021 >> QX80 Sensory, RWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (DTCS) (3 Of 5) >> Engine (ECM) >> DTC P0345: CMP Sensor >> DTC Description >> DTC Detection Logic
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DTC Detection Logic

NOTE: If DTC P0340 is displayed with DTC P0643, first perform the trouble diagnosis for DTC P0643.

Refer to DTC Description .

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.]

  • Camshaft position sensor (bank 1)
  • 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
  • Sensor power supply 2