INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY

Measure the resistance between the terminals.

Fig 1: Measuring Resistance Between Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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.

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

Fig 2: Identifying Battery'S Positive Lead To Terminal 1 And Negative Lead To Terminal

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Specified condition

SPECIFIED CONDITION CHART

Condition	Specified Condition
Battery positive (+) voltage is applied	Valve moves in left arrow direction shown in the illustration
Battery positive (+) voltage is cut off	Valve moves in right arrow direction shown in the illustration

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

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.

• Brakes feel soft, pull hard to one side, or make grinding noises.

• The engine overheats, stalls repeatedly, or misfires under load.

• You are missing required tools, torque specs, or safe lifting equipment.

• You are not confident in the next step or safety outcome.

Safety Warning

Camshaft Timing Oil Control Valve Assembly: Inspection

Use the Manual With the Right Hardware

When to See a Mechanic

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