Camshaft Timing Oil Control Valve Assembly: Inspection

WARNING: This page is about a different car, the 2007 Lexus RX 350. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY
1. Resistance inspection.
  1. Using an ohmmeter, measure the resistance between the terminals.
    Resistance:
    
    6.9 to 7.9 Ω at 20°C (68°F)
    
    If necessary, replace the camshaft oil control valve assembly.
    
    Fig 1: Locating Camshaft Timing Oil Control Valve Connector And Bolt (For Bank 2 Intake Side)
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Movement inspection.
  1. Connect the positive (+) lead from the battery to terminal 1 and the negative (-) lead to terminal 2, and check the movement of the valve.
    NOTE: Confirm that the valve moves freely and does not stick in any position.
    
    If necessary, replace the camshaft oil control valve assembly.
    
    HINT:
    
    Accumulation of foreign objects causes subtle pressure leaks. The subtle pressure leaks will cause the cam to advance, and this will cause a DTC to be set.
    
    Fig 2: Inspecting Camshaft Timing Oil Control Valve Assembly Operation
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002