LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Infiniti >> 2019 >> QX50 Essential, 4WD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (DTC/Circuit Diagnosis) (11 Of 12) >> DTC/Circuit Diagnosis >> DTC P34AE: Electric Intake Valve Timing Control Position Sensor >> Diagnosis Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Diagnosis Procedure

  1. CHECK ELECTRIC INTAKE VALVE TIMING CONTROL POSITION SENSOR CIRCUIT 
    1. Turn ignition switch OFF.
    2. Disconnect electric intake valve timing control position sensor harness connector.
    3. Disconnect electric intake valve timing control module harness connector.
    4. Check the continuity between the electric intake valve timing control position sensor harness connector and the electric intake valve timing control module harness connector.

      Electric intake valve timing control position sensor

      Electric intake valve timing control module

      Continuity

      Connector

      Terminal

      Connector

      Terminal

      F93

      3

      F91

      9

      Existed

      4

      35

      5

      6

    5. Also check harness for short to power and short to ground.

    Is the inspection result normal?

    YES

    GO TO 2.

    NO

    Repair or replace error-detected parts.

  2. CHECK INTERMITTENT INCIDENT 

    Check intermittent incident. Refer to Intermittent Incident .

    Is the inspection result normal?

    YES

    Replace electric intake valve timing control actuator. Refer to Exploded View .

    NO

    Repair or replace error-detected parts.