Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSTOYOTA2007HIGHLANDER 4WD L4-2.4L (2AZ-FE)REPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSVARIABLE VALVE TIMING ACTUATORTESTING AND INSPECTIONINSPECTION
2007 Toyota Highlander 4WD L4-2.4L (2AZ-FE)
Inspection
2007 Toyota Highlander 4WD L4-2.4L (2AZ-FE)SECTION Inspection
INSPECTION
INSPECT CAMSHAFT TIMING OIL CONTROL VALVE(OCV) ASSEMBLY
a. Measure the resistance between the terminals.
Resistance: 6.9 to 7.9 ohms at 20 °C (68 °F)
If the result is not as specified, replace the OCV assembly.
b. Connect the battery's positive (+) lead to terminal 1 and negative (-) lead to terminal 2, and check the movement of the valve.
NOTE: Confirm that the valve moves freely and does not become stuck in any position.
If necessary, replace the OCV assembly.
HINT: If the valve cannot return properly because of foreign matter, a small pressure leak in the advanced direction may occur and a DTC will be output.
INSPECT CAMSHAFT TIMING OIL CONTROL VALVE(OCV) ASSEMBLY
a. Measure the resistance between the terminals.
Resistance: 6.9 to 7.9 ohms at 20 °C (68 °F)
If the result is not as specified, replace the OCV assembly.
b. Connect the battery's positive (+) lead to terminal 1 and negative (-) lead to terminal 2, and check the movement of the valve.
NOTE: Confirm that the valve moves freely and does not become stuck in any position.
If necessary, replace the OCV assembly.
HINT: If the valve cannot return properly because of foreign matter, a small pressure leak in the advanced direction may occur and a DTC will be output.
RENDER: 1.0x
NO RELATED
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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.