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 MANUALSTOYOTA2002HIGHLANDER 4WD L4-2.4L (2AZ-FE)REPAIR AND DIAGNOSISENGINE, COOLING AND EXHAUSTENGINETIMING COMPONENTSVARIABLE VALVE TIMINGVARIABLE VALVE TIMING ACTUATORTESTING AND INSPECTION
2002 Toyota Highlander 4WD L4-2.4L (2AZ-FE)
Variable Valve Timing Actuator: Testing and Inspection
2002 Toyota Highlander 4WD L4-2.4L (2AZ-FE)SECTION Testing and Inspection
CAMSHAFT TIMING OIL CONTROL VALVE ASSY
a. Resistance inspection.
1. Using an ohmmeter, measure the resistance between the terminals.
Resistance: 6.9 - 7.9 (Ohm) at 20 °C (68 °F)
b. Movement inspection.
1. Connect the positive (+) lead from the battery to terminal 1 and negative (-) lead to terminal 2, and check the movement of the valve.
NOTE: Confirm the valve does not adhere.
HINT: Bad returning of the valve by entrance of foreign objects causes subtle pressure leak to the advanced direction. Then, DTC can be detected.
a. Resistance inspection.
1. Using an ohmmeter, measure the resistance between the terminals.
Resistance: 6.9 - 7.9 (Ohm) at 20 °C (68 °F)
b. Movement inspection.
1. Connect the positive (+) lead from the battery to terminal 1 and negative (-) lead to terminal 2, and check the movement of the valve.
NOTE: Confirm the valve does not adhere.
HINT: Bad returning of the valve by entrance of foreign objects causes subtle pressure leak to the advanced direction. Then, DTC can be detected.
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.