Camshaft Timing Oil Control Valve Assembly: Inspection

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INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY

Measure the resistance according to the value (s) in the below.

Standard resistance

RESISTANCE SPECIFICATION

Tester Connection	Condition	Specified Condition
1 - 2	20°C (68°F)	6.9 to 7.9 Ω

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

Fig 1: Measuring Resistance Between Camshaft Timing Oil Control Valve Terminals

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.

CAMSHAFT TIMING OIL CONTROL VALVE CONDITION

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

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

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

Fig 2: Inspecting Camshaft Timing Oil Control Valve Assembly