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Home >> Infiniti >> 2008 >> QX56 AWD >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System - DTCS U1000 To P0308 >> DTC P0075, P0081: IVT Control Solenoid Valve >> Component Inspection >> Intake Valve Timing Control Solenoid Valve

Intake Valve Timing Control Solenoid Valve

  1. Disconnect intake valve timing control solenoid valve harness connector.
  2. Check resistance between intake valve timing control solenoid valve terminals as follows.
    RESISTANCE SPECIFICATION CHART

    Terminals Resistance
    1 and 2 7.1 - 7.7Ω [at 20°C (68°F)]
    1 or 2 and ground ∞Ω (Continuity should not exist)
    Fig 1: Checking Resistance Between Intake Valve Timing Control Solenoid Valve Terminals
    G05739345Courtesy of NISSAN MOTOR CO., U.S.A.

    If NG, replace intake valve timing control solenoid valve. Refer to INTAKE VALVE TIMING CONTROL .

    If OK, go to next step.

  3. Remove intake valve timing control solenoid valve. Refer to INTAKE VALVE TIMING CONTROL .
  4. Provide 12V DC between intake valve timing control solenoid valve terminals and then interrupt it. Make sure that the plunger moves as shown in the figure.
    CAUTION: Do not apply 12V DC continuously for 5 seconds or more. Doing so may result in damage to the coil in intake valve timing control solenoid valve.

    If NG, replace intake valve timing control solenoid valve. Refer to INTAKE VALVE TIMING CONTROL .

    NOTE: Always replace O-ring when intake valve timing control solenoid valve is removed.
    Fig 2: Checking Plunger Movement
    G05739346Courtesy of NISSAN MOTOR CO., U.S.A.