Camshaft Timing Oil Control Valve Assembly: Inspection

WARNING: This page is about a different car, the 2008 Toyota Yaris. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY

Check the resistance.
1. Measure the resistance between the terminals.
  Standard resistance: 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: Identifying Camshaft Timing Oil Control Valve Assembly
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Check the operation.

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

Standard

SPECIFIED CONDITION CHART

Condition	Specified Condition
Battery positive (+) voltage applied	Valve moves to the left as shown in the illustration
Battery positive (+) voltage cut off	Valve moves to the right as shown in the illustration

Fig 2: Identifying Movement Of Valve

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

NOTE: If the valve does not return properly because of foreign matter intrusion, a small amount of leakage in the advanced direction may occur and a DTC may be output.