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Camshaft Oil Control Valve: Inspection

  1. INSPECT CAMSHAFT TIMING OIL CONTROL ASSEMBLY 
    1. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      CAMSHAFT TIMING OIL CONTROL ASSEMBLY

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

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

    2. Connect the battery's positive (+) lead to terminal 1 and negative (-) lead to terminal 2, and check the movement of the valve.

      OK 

      CAMSHAFT TIMING OIL CONTROL ASSEMBLY (CONNECTING BATTERY TERMINALS)

      Condition Specified Condition
      Battery positive (+) voltage is applied Valve moves in left arrow direction shown in illustration
      Battery positive (+) voltage is cut off Valve moves in right arrow direction shown in illustration
      Fig 1: Identifying Camshaft Oil Control Valve
      G04943005Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

      NOTE: Do not allow foreign matter to contact the oil seal face of the oil control valve (connecting surface with cylinder head cover sub-assembly).

      HINT:

      If the valve cannot return properly because of foreign matter, a small pressure leak in the advanced direction may occur and a DTC may be output.

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