Ambient Temperature Sensor Inspection

WARNING: This page is about a different car, the 2004 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.

Measure the temperature around the ambient temperature sensor.
Measure the resistance between terminals of the ambient temperature sensor.
- If the resistance is not as shown in the graph, replace the ambient temperature sensor.
  
  Fig 1: Ambient Temperature Sensor Resistance & Specification Chart
  Courtesy of MAZDA MOTORS CORP.