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Home >> Infiniti >> 2017 >> QX60 Base, FWD >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (DTCS) (Except Hybrid) (1 Of 4) >> DTC/Circuit Diagnosis >> Power Supply And Ground Circuit >> Electric Intake Valve Timing Control Module >> Diagnosis Procedure >> Diagnostic Test
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Diagnostic Test

  1. CHECK FUSE

    1. Turn ignition switch OFF.
    2. Check that the following fuse is not blowing.
      Location Fuse No. Capacity
      IPDM E/R #45 10A

    Is the fuse blown (open)?

    YES 

    Replace the fuse after repairing the applicable circuit.

    NO 

    GO TO STEP 2  .

  2. CHECK FUSIBLE LINK

    Check that the following fusible link is not blowing.

    Fusible link No. Capacity
    #Q 50A
    #R 50A

    Is the fusible link blown (open)?

    YES 

    Replace the fusible link after repairing the applicable circuit.

    NO 

    GO TO STEP 3  .

  3. CHECK GROUND CONNECTION

    Check ground connection F107 and F108. Refer to Ground Inspection in CIRCUIT INSPECTION .

    Is the inspection result normal?

    YES 

    GO TO STEP 4  .

    NO 

    Repair or replace error-detected parts.

  4. CHECK ELECTRIC INTAKE VALVE TIMING CONTROL MODULE GROUND CIRCUIT

    1. Disconnect electric intake valve timing control module harness connectors.
    2. Check the continuity between electric intake valve timing control module harness connector and ground.
      Electric intake valve timing control module - Continuity
      Connector Terminal
      F106 3 Ground Existed
    3. Also check harness for short to power.

    Is the inspection result normal?

    YES 

    GO TO STEP 5  .

    NO 

    Repair or replace error-detected parts.

  5. CHECK ELECTRIC INTAKE VALVE TIMING CONTROL MODULE POWER SUPPLY

    1. Reconnect electric intake valve timing control module harness connectors.
    2. Check the voltage between electric intake valve timing control module harness connector terminals as follows.
      Electric intake valve timing control module Voltage
      Connector + -
      Terminal
      F106 1 3 Battery voltage
      2

    Is the inspection result normal?

    YES 

    GO TO STEP 6  .

    NO 

    Perform trouble diagnosis for power supply circuit.

  6. CHECK IGNITION SWITCH SIGNAL

    Check the voltage between electric intake valve timing control module harness connectors as follows.

    Electric intake valve timing control module Condition Voltage
    + -
    Connector Terminal Connector Terminal
    F105 18 F106 3 Ignition switch: ON Battery voltage
    Ignition switch: OFF 0 V

    Is the inspection result normal?

    YES 

    Check intermittent incident. Refer to INTERMITTENT INCIDENT .

    NO 

    GO TO STEP 7  .

  7. CHECK IGNITION SWITCH SIGNAL

    1. Turn ignition switch OFF.
    2. Disconnect electric intake valve timing control module harness connectors.
    3. Disconnect IPDM E/R harness connector.
    4. Check the continuity between IPDM E/R harness connector and electric intake valve timing control module harness connector.
      IPDM E/R Electric intake valve timing control module Continuity
      Connector Terminal Connector Terminal
      F19 54 F105 18 Existed
    5. Also check harness for short to power and short to ground.

    Is the inspection result normal?

    YES 

    Perform trouble diagnosis for power supply circuit.

    NO 

    Repair or replace error-detected parts.

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