Air Mix Actuator Inspection (Auto A/C): Passenger-side

WARNING: This page is about a different car, the 2016 Mazda CX-5. However, it is still accessible from the selected car via links, so may be relevant.

Connect battery positive voltage to air mix actuator terminal C (or B), connect terminal B (or C) to ground, and then verify that the air mix actuator operates as shown in the table.

If the operation condition is not normal, replace the air mix actuator.

Fig 1: Connect Battery Positive Voltage To Air Mix Actuator Terminal C Or B (Passenger-Side)

Courtesy of MAZDA MOTORS CORP.

Terminal		Air mix actuator operation
B	C	Air mix actuator operation
B+	Ground	HOT → COLD
Ground	B+	COLD → HOT

Verify that the resistance between terminals F and G, E and F matches the air mix actuator operation as shown in the graph.

Fig 2: Air Mix Actuator Operation Graph (Passenger-Side)
Courtesy of MAZDA MOTORS CORP.
- If the operation condition and resistance are not normal, replace the air mix actuator.