Ambient Temperature Sensor / Switch HVAC: Service and Repair

Outside Air Temperature Sensor Removal, Installation, and Test

Removal

1. Front Bumper





1. Remove the screws (A), the bolts (B), and the clips (C, D) securing the front bumper (E).





2. Pull out the front bumper (A) from the side spacer (B). Repeat this step on the opposite side.





3. With the help of an assistant, pull out both sides of the front bumper (A) from the upper beam (B).





4. With the help of an assistant, remove the front bumper (A).

2. Outside Air Temperature Sensor





1. Disconnect the connector (A).

2. Lift the tab (B) to release the lock.

3. Remove the outside air temperature sensor (C).

Test

NOTE: Before testing the sensor, check for climate control DTCs.

1. Outside Air Temperature Sensor - Test





1. Dip the sensor in ice water, and measure the resistance. Then pour warm water on the sensor, and check for a change in resistance.

2. Compare the resistance reading between terminals No. 1 and No. 2 of the outside air temperature sensor with the specifications shown in the graph; the resistance should be within the specifications.

3. If the resistance is not as specified, replace the outside air temperature sensor.

Installation

1. Outside Air Temperature Sensor





1. Install the outside air temperature sensor (A).

2. Connect the connector (B).

2. Front Bumper





1. With the help of an assistant, install the front bumper (A).





2. With the help of an assistant, install both sides of the front bumper (A) to the upper beam (B).





3. Install the front bumper (A) to the side spacer (B). Repeat this step on the opposite side.





4. Install the screws (A), the bolts (B), and the clips (C, D) securing the front bumper (E).