Removal Procedure

WARNING: This page is about a different car, the 2003 Pontiac Aztek and 2003 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.

Open the hood.
Disconnect the electrical connector from the ambient air temperature sensor.

Fig 1: Disconnecting Electrical Connector From Ambient Air Temperature Sensor
Courtesy of GENERAL MOTORS CORP.
Use J 38778 to disconnect the wiring harness retainer which secures the ambient air temperature sensor to the hood latch support.
Remove the ambient air temperature sensor from the wiring harness retainer.
Remove the ambient air temperature sensor from the vehicle.

Fig 2: Removing Ambient Air Temperature Sensor From Vehicle
Courtesy of GENERAL MOTORS CORP.