Camshaft Timing Oil Control Valve Assembly: Inspection

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 timing oil control valve assembly.
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 timing oil control valve assembly.
    
    Fig 1: Inspecting Camshaft Timing Oil Control Valve Assembly For Movement
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    
    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.