Ambient Temperature Sensor: Inspection

WARNING: This page is about a different car, the 2003 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.

REMOVE AMBIENT TEMPERATURE SENSOR
1. Disconnect the connector.
2. Pull out the sensor.
  
  Fig 1: Removing Ambient Temperature Sensor
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
INSPECT AMBIENT TEMPERATURE SENSOR CIRCUIT (See DTC B1412/12: AMBIENT TEMPERATURE SENSOR CIRCUIT ).
INSTALL AMBIENT TEMPERATURE SENSOR