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Camshaft Timing Oil Control Valve Assembly: Inspection

  1. INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY 
    1. Measure the resistance of the oil control valve.

      Standard resistance 

      CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY TESTER CONNECTION AND SPECIFIED CONDITION

      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 oil control valve assembly.

      Fig 1: Measuring Resistance Of Oil Control Valve
      G04869320Courtesy 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: Checking Oil Control Valve Operation
        G04869321Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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