Air Mix Actuator Inspection

WARNING: This page is about a different car, the 2004 Mazda RX-8. However, it is still accessible from the selected car via links, so may be relevant.

Connect battery positive voltage to air mix actuator terminal F (or G), and ground to terminal G (or F), and then verify that the air mix actuator operates as shown in Fig 1.
- If the operation condition is not normal, replace the air mix actuator.
Fig 1: Air Mix Actuator Operation & Terminal Table
Courtesy of MAZDA MOTORS CORP.
Verify that the resistance between terminals A and E, and C and E matches the air mix actuator operation as shown in the graph.
- If the operation condition and resistance are not normal, replace the air mix actuator.
Fig 2: Inspecting Air Mix Actuator
Courtesy of MAZDA MOTORS CORP.

Fig 3: Air Mix Actuator Resistance Graph
Courtesy of MAZDA MOTORS CORP.