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Home >> Infiniti >> 2015 >> Q60 Base, 2D Convertible >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (Diagnostic Trouble Codes (DTCS) P0031-P0445) (Convertible) >> DTC/Circuit Diagnosis >> DTC P0340, P0345: CMP Sensor (Phase) >> Diagnosis Procedure >> Diagnostic Test
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Diagnostic Test

  1. CHECK STARTING SYSTEM

    Turn ignition switch to START position.

    Does the engine turn over? Does the starter motor operate?

    YES 

    GO TO STEP 2  .

    NO 

    Check starting system. (Refer to WORK FLOW .)

  2. CHECK GROUND CONNECTION

    1. Turn ignition switch OFF.
    2. Check ground connection M95. Refer to Ground Inspection in CIRCUIT INSPECTION .

    Is the inspection result normal?

    YES 

    GO TO STEP 3  .

    NO 

    Repair or replace ground connection.

  3. CHECK CAMSHAFT POSITION (CMP) SENSOR (PHASE) POWER SUPPLY CIRCUIT

    1. Disconnect camshaft position (CMP) sensor (PHASE) harness connector.
    2. Turn ignition switch ON.
    3. Check the voltage between CMP sensor (PHASE) harness connector and ground.
      DTC CMP sensor (PHASE) Ground Voltage (V)
      Bank Connector Terminal
      P0340 1 F5 1 Ground Approx. 5
      P0345 2 F18 1

    Is the inspection result normal?

    YES 

    GO TO STEP 4  .

    NO 

    Repair or replace error-detected parts.

  4. CHECK CMP SENSOR (PHASE) GROUND CIRCUIT FOR OPEN AND SHORT

    1. Turn ignition switch OFF.
    2. Disconnect ECM harness connector.
    3. Check the continuity between CMP sensor (PHASE) harness connector and ECM harness connector.
      DTC CMP sensor (PHASE) ECM Continuity
      Bank Connector Terminal Connector Terminal
      P0340 1 F5 2 F102 96 Existed
      P0345 2 F18 2 92
    4. Also check harness for short to ground and short to power.

    Is the inspection result normal?

    YES 

    GO TO STEP 5  .

    NO 

    Repair or replace error-detected parts.

  5. CHECK CMP SENSOR (PHASE) INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT

    1. Check the continuity between CMP sensor (PHASE) harness connector and ECM harness connector.
      DTC CMP sensor (PHASE) ECM Continuity
      Bank Connector Terminal Connector Terminal
      P0340 1 F5 3 F102 59 Existed
      P0345 2 F18 3 63
    2. Also check harness for short to ground and short to power.

    Is the inspection result normal?

    YES 

    GO TO STEP 6  .

    NO 

    Repair or replace error-detected parts.

  6. CHECK CAMSHAFT POSITION SENSOR (PHASE)

    Refer to COMPONENT INSPECTION .

    Is the inspection result normal?

    YES 

    GO TO STEP 7  .

    NO 

    Replace malfunctioning camshaft position sensor (PHASE). Refer to EXPLODED VIEW .

  7. CHECK CAMSHAFT (INTAKE)

    Check the following.

    • Accumulation of debris to the signal plate of camshaft front end
      Fig 1: Inspecting Camshaft Signal Plate
      G05733383Courtesy of NISSAN NORTH AMERICA, INC.
    • Chipping signal plate of camshaft front end

    Is the inspection result normal?

    YES 

    GO TO STEP 8  .

    NO 

    Remove debris and clean the signal plate of camshaft front end or replace camshaft. Refer to EXPLODED VIEW .

  8. CHECK INTERMITTENT INCIDENT

    Refer to INTERMITTENT INCIDENT .

    INSPECTION END

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