Passenger Compartment Temperature Sensor Inspection

WARNING: This page is about a different car, the 2007 Mazda 3. However, it is still accessible from the selected car via links, so may be relevant.

Measure the temperature around the passenger compartment temperature sensor and measure the resistance between passenger compartment temperature sensor terminals B and D.
- If the characteristics of the passenger compartment temperature sensor are not as shown in the graph, replace the passenger compartment temperature sensor.
Connect battery positive voltage to passenger compartment temperature sensor terminal A and connect terminal C to ground to verify fan operation.
- If there is any malfunction, replace the passenger compartment temperature sensor.
  
  Fig 1: Passenger Compartment Temperature Graph
  Courtesy of MAZDA MOTORS CORP.
  
  Fig 2: Checking Passenger Compartment Temperature Sensor
  Courtesy of MAZDA MOTORS CORP.