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Camshaft Oil Control Valve: Inspection: Inspection

  1. INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY 
    Fig 1: Measuring Resistance Between Terminals
    GTY191679Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Check the resistance.
      1. Using an ohmmeter, measure the resistance between the terminals.

        Standard

        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.

    2. Check the operation.
      Fig 2: Checking Valve Operation
      GTY191453Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      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.

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