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Camshaft Timing Oil Control Valve Assembly: Inspection

  1. INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY 
    1. Check the resistance.
      1. Using an ohmmeter, measure the resistance between the terminals.

        Resistance 

        TESTER CONNECTION - SPECIFIED CONDITIONS

        Tester Connection Specified Condition
        1 (+B) - 2 (GND) 6.9 to 7.9 k at 20°C (68°F)

        If the result is not as specified, replace the camshaft timing oil control valve.

        Fig 1: Inspecting Camshaft Timing Oil Control Valve Assembly Resistance
        G04460440Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Check the operation.
      1. Apply battery voltage across the terminals, and check that the spool valve operates.
        NOTE: Check that the spool valve is not stuck.

        HINT:

        The spool valve may not return if foreign objects are caught in it. This may cause subtle pressure leaks to the advance side, and a DTC may be set.

        Fig 2: Inspecting Camshaft Timing Oil Control Valve Assembly Operation
        G04460441Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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