Air Mix Actuator Inspection

WARNING: This page is about a different car, the 2002 Mazda 626. However, it is still accessible from the selected car via links, so may be relevant.

Remove the air mix actuator.
Connect battery positive voltage to terminal D and ground to terminal H, and battery positive voltage to terminal H and ground to terminal D of the air mix actuator.
Verify that the air mix actuator operates as shown in Fig 1 and Fig 2 .
- If not as specified, replace the air mix actuator.
  
  Fig 1: Air Mix Actuator Movement Table, Circuit Diagram & Connector View
  Courtesy of MAZDA MOTORS CORP.
  
  Fig 2: Identifying Air Mix Actuator MAX HOT & MAX COLD Positions
  Courtesy of MAZDA MOTORS CORP.
- Verify that the resistance between the terminals of the air mix actuator is as shown in the Fig 3 .
  - If not as specified, replace the air mix actuator.
    
    Fig 3: Resistance Vs. Air Mix Actuator Position Graph
    Courtesy of MAZDA MOTORS CORP.