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 DIAGNOSISACCESSORIES AND OPTIONAL EQUIPMENTANTITHEFT AND ALARM SYSTEMSTESTING AND INSPECTIONCOMPONENT TESTS AND GENERAL DIAGNOSTICSENGINE IMMOBILIZER SYSTEMINDICATOR LIGHT CIRCUIT
2002 Toyota Highlander 4WD L4-2.4L (2AZ-FE)
Indicator Light Circuit
2002 Toyota Highlander 4WD L4-2.4L (2AZ-FE)SECTION Indicator Light Circuit
CIRCUIT DESCRIPTION
When the engine immobilizer system is ready to be set, this circuit lights up the security indicator light. When the system has been set, it continually turns the security indicator light on for 0.8 seconds and turns it off for 1.2 seconds, thus the security indicator light blinks.
INSPECTION PROCEDURE
When the engine immobilizer system is ready to be set, this circuit lights up the security indicator light. When the system has been set, it continually turns the security indicator light on for 0.8 seconds and turns it off for 1.2 seconds, thus the security indicator light blinks.
Wiring Diagram:
Step 1:
Step 2 - 3:
INSPECTION PROCEDURE
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.