Ambient Temperature Sensor: Inspection

2004 Toyota Matrix XR, FWD, StandardSECTION Inspection
WARNING: This page is about a different car, the 2003 Lexus IS 300. However, it is still accessible from the selected car via links, so may be relevant.
  1. REMOVE AMBIENT TEMPERATURE SENSOR 
    1. Disconnect the connector.
    2. Using a clip remover, pull out the sensor from bumper reinforcement.
    Fig 1: Removing Ambient Temperature Sensor
    G01314446Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. INSPECT AMBIENT TEMPERATURE SENSOR RESISTANCE 

    Measure resistance between terminals at each temperature as shown in the chart.

    Fig 2: Sensor Resistance Condition Chart
    G01314447Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
RENDER: 1.0x

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Stop DIY work and contact a certified mechanic immediately if any of the following apply:

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  • Brakes feel soft, pull hard to one side, or make grinding noises.
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