Rear Airflow Mode Actuator Inspection

WARNING: This page is about a different car, the 2017 Mazda CX-9. However, it is still accessible from the selected car via links, so may be relevant.

Slide the front seat (RH) forward.
Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION .)
Remove the following parts:
1. Selector lever knob (See AUTOMATIC TRANSAXLE SHIFT MECHANISM REMOVAL/INSTALLATION .)
2. Shift panel (See SHIFT PANEL REMOVAL/INSTALLATION .)
3. Console side panel (See CONSOLE SIDE PANEL REMOVAL/INSTALLATION .)
4. Front console (See FRONT CONSOLE REMOVAL/INSTALLATION .)
5. Side wall (See SIDE WALL REMOVAL/INSTALLATION .)
6. Rear console (See REAR CONSOLE REMOVAL/INSTALLATION .)
Remove the rear airflow mode actuator. (See REAR AIRFLOW MODE ACTUATOR REMOVAL/INSTALLATION .)

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

B+ Terminal	Ground Terminal	Operation
D	E	HEAT → VENT
E	D	VENT → HEAT

Fig 1: Applying Battery Positive Voltage To Rear Airflow Mode Actuator Terminals

Courtesy of MAZDA MOTORS CORP.

Verify that the resistance between terminals A and B, B and C matches the rear airflow mode actuator operation as shown in the graph.

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