How to Replace an Outside Air Temperature Sensor on a Toyota Truck

Written by erick kristian
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How to Replace an Outside Air Temperature Sensor on a Toyota Truck
The outside air temperature sensor on the Tundra and Tacoma is typically located behind the lower grill cover. (Rick Gershon/Getty Images News/Getty Images)

A vehicle's outside air temperature sensor is also known as the ambient air temperature sensor. On most Toyota trucks, it is located behind lower grill cover slightly to the passenger side of the vehicle. The sensor itself is small, but easily visible if the bumper is removed or when looking up from under the truck (when it is on a lift).

Skill level:

Things you need

  • Lift or ramp
  • Wrench
  • Screwdriver

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  1. 1

    Drive the truck up on to a lift or ramp. The mechanic will need to have access to the bottom of the vehicle. Make sure the parking brake is engaged when the truck is on the lift.

  2. 2

    Remove the front bumper. This is an alternative to driving the truck on a lift. The process of removing the bumper varies with year and model of the truk. Consult the owner's repair manual for additional information on removing the front bumper.

  3. 3

    Look for a small square flat sensor no more than two inches tall and wide. It should be located behind the lower grill near the bumper of the passenger side of the truck.

  4. 4

    Unscrew the sensor from the mounting brace using a screwdriver. Unclip the sensor from the single wire it is attached to. Clip the new sensor into that wire. Screw the new sensor back into the mounting brace.

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