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 2WD V6-3.3L (3MZ-FE)REPAIR AND DIAGNOSISSERVICE PRECAUTIONSTECHNICIAN SAFETY INFORMATIONFOR VEHICLES EQUIPPED WITH MOBILE COMMUNICATION SYSTEMS
2007 Toyota Highlander 2WD V6-3.3L (3MZ-FE)
For Vehicles Equipped With Mobile Communication Systems
2007 Toyota Highlander 2WD V6-3.3L (3MZ-FE)SECTION For Vehicles Equipped With Mobile Communication Systems
FOR VEHICLES EQUIPPED WITH MOBILE COMMUNICATION SYSTEMS
a. Install the antenna far away from the ECU and sensors of the vehicle electronic systems as possible.
b. Install an antenna feeder at least 20 cm (7.87 in.) away from the ECU and sensors of the vehicle electronic systems. For details about ECU and sensors locations, refer to the section on the applicable components.
c. Keep the antenna and feeder separate from other wirings as much as possible. This will prevent signals sent from the communication equipment from affecting vehicle equipment and vice-versa.
d. Check that the antenna and feeder are correctly adjusted.
e. Do not install any high-powered mobile communication system.
a. Install the antenna far away from the ECU and sensors of the vehicle electronic systems as possible.
b. Install an antenna feeder at least 20 cm (7.87 in.) away from the ECU and sensors of the vehicle electronic systems. For details about ECU and sensors locations, refer to the section on the applicable components.
c. Keep the antenna and feeder separate from other wirings as much as possible. This will prevent signals sent from the communication equipment from affecting vehicle equipment and vice-versa.
d. Check that the antenna and feeder are correctly adjusted.
e. Do not install any high-powered mobile communication system.
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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.