Camshaft Timing Oil Control Valve Assembly: Inspection

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.