Airflow Mode Actuator Inspection (Auto A/C)

WARNING: This page is about a different car, the 2016 Mazda CX-3. However, it is still accessible from the selected car via links, so may be relevant.

CAUTION:

If the lever position exceeds the operation range shown in the chart, the circuit in the actuator could be damaged. Always perform an actuator operation inspection with the lever movement within the range shown in the chart.

Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION .)
Remove the glove compartment. (See GLOVE COMPARTMENT REMOVAL/INSTALLATION .)
Remove the airflow mode actuator. (See AIRFLOW MODE ACTUATOR REMOVAL/INSTALLATION (AUTO A/C) .)

Apply battery positive voltage and connect the ground to the airflow mode actuator terminals as indicated in the chart below and verify the operation condition.

B+ Terminal	Ground Terminal	Operation
A	B	DEFROSTER → VENT
B	A	VENT → DEFROSTER

Fig 1: Identifying Airflow Mode Actuator Angle

Courtesy of MAZDA MOTORS CORP.

Verify that the resistance between terminals D and E, C and D matches the airflow mode actuator operation as shown in the figure.

Fig 2: Airflow Mode Actuator Terminals Resistance Graph
Courtesy of MAZDA MOTORS CORP.
- If the operation condition and resistance are not normal, replace the airflow mode actuator. (See AIRFLOW MODE ACTUATOR REMOVAL/INSTALLATION (AUTO A/C) .)