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.
2002 Toyota Highlander Limited, AWDFACTORY OEM SERVICE PROCEDURE
For Vehicles Equipped With Mobile Communication System
- Install the antenna as far as possible away from the ECU and sensors of the vehicle's electronic system.
- Install the antenna feeder at least 20 cm (7.87 in.) away from the ECU and sensors of the vehicle's electronic systems. For details about ECU and sensors locations, refer to the section on the applicable component.
- Prevent the antenna feeder from getting entangled with the other wiring and keep the antenna feeder separate from the other wiring as much as possible.
- Check that the antenna and feeder are correctly adjusted.
- Do not install powerful mobile communications system.
Factory Service Tools
Use the Manual With the Right Hardware
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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.