Ambient Temperature Sensor: 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.

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
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INSPECT AMBIENT TEMPERATURE SENSOR RESISTANCE
Measure resistance between terminals at each temperature as shown in the chart.

Fig 2: Sensor Resistance Condition Chart
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Fig 3: Inspecting Ambient Temperature Sensor Resistance
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If resistance is not as specified, replace the sensor.
INSTALL AMBIENT TEMPERATURE SENSOR
1. Push the sensor in bumper reinforcement.
2. Connect the connector.
Fig 4: Installing Ambient Temperature Sensor
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