Camshaft Timing Oil Control Valve Assembly: Inspection

WARNING: This page is about a different car, the 2008 Lexus IS 350. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY

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.

Fig 1: Measuring Resistance Between Camshaft Timing Oil Control Valve Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Connect the battery's positive (+) lead to terminal 1 and negative (-) lead to terminal 2, and check the movement of the valve.

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 2: Connecting Battery's Positive (+) Lead To Terminal 1 And Negative (-) Lead To Terminal 2

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

NOTE: 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.