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Camshaft Timing Oil Control Valve Assembly: Inspection

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

        Standard 

        STANDARD REFERENCE CHART

        Tester Connection Specified Condition
        1 (+B) - 2 (GND) 6.9 to 7.9 kΩ 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
        G05198391Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
    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 leakage to the advance side, and a DTC may be set.

        Fig 2: Applying Battery Voltage Across Terminals
        G05198392Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
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