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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.

        Standard 

        TESTER CONNECTIONS AND SPECIFIED CONDITIONS

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

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

        Fig 1: Measuring Resistance Between Terminals Using Ohmmeter
        G04407406Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Check the operation.
      1. Connect the positive (+) lead from the battery to terminal 1 and negative (-) lead to terminal 2, and check that the 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 leakage to the advance side, and a DTC may, be set.

        Fig 2: Checking If Valve Operates
        G04407407Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002