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Home >> Infiniti >> 2014 >> QX60 Base, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Diagnostic Codes & Symptom Tests) (Except Hybrid) >> DTC/Circuit Diagnosis >> Variable Induction Air System >> Component Function Check

Component Function Check

  1. CHECK OVERALL FUNCTION-I 

    With CONSULT 

    1. Start engine and warm it up to the normal operating temperature.
    2. Perform "VIAS S/V-1" in "ACTIVE TEST" mode with CONSULT.
    3. Turn VIAS control solenoid valve 1 "ON" and "OFF", and check that power valve actuator 1 rod moves.
      Fig 1: Checking Variable Induction Air System
      G09404650Courtesy of NISSAN NORTH AMERICA, INC.

    Without CONSULT 

    1. Start engine and warm it up to the normal operating temperature.
    2. Rev engine quickly up to approximately 5, 000 RPM.
    3. Check that power valve actuator 1 rod moves.
      Fig 2: Checking Power Valve Actuator 1 Rod Movement
      G09404651Courtesy of NISSAN NORTH AMERICA, INC.

    Is the inspection result normal? 

    YES: GO TO  2.

    NO: Proceed to "DIAGNOSIS PROCEDURE ".

  2. CHECK OVERALL FUNCTION-II 

    With CONSULT 

    1. Perform "VIAS S/V-2" in "ACTIVE TEST" mode with CONSULT.
    2. Turn VIAS control solenoid valve 2 "ON" and "OFF", and check that power valve actuator 2 rod moves.
      Fig 3: Checking Power Valve Actuator 2 Rod Movement
      G09404652Courtesy of NISSAN NORTH AMERICA, INC.

    Without CONSULT 

    1. When revving engine up to 5, 000 RPM quickly.
    2. Rev engine quickly up to approximately 5, 000 RPM.
    3. Check that power valve actuator 2 rod moves.
      Fig 4: Checking Power Valve Actuator 2 Rod Movement
      G09404653Courtesy of NISSAN NORTH AMERICA, INC.

    Is the inspection result normal? 

    YES: INSPECTION END

    NO: Proceed to "DIAGNOSIS PROCEDURE ".