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 DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSTESTING AND INSPECTIONSCAN TOOL TESTING AND PROCEDURES
2002 Toyota Highlander 4WD L4-2.4L (2AZ-FE)
Scan Tool Testing and Procedures
2002 Toyota Highlander 4WD L4-2.4L (2AZ-FE)SECTION Scan Tool Testing and Procedures
ENGINE OPERATING CONDITION
NOTE: The values given for "Normal Condition" are representative values, so a vehicle may still be normal even if its value differs from those listed here. So do not depend solely on the "Normal Condition" here when deciding whether the part is faulty or not.
a. CARB mandated signals.
b. TOYOTA Enhanced Signals.
NOTE: The values given for "Normal Condition" are representative values, so a vehicle may still be normal even if its value differs from those listed here. So do not depend solely on the "Normal Condition" here when deciding whether the part is faulty or not.
a. CARB mandated signals.
b. TOYOTA Enhanced Signals.
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.