Mazda CX-9 Grand Touring. Manual - part 423

8. Console cover (See CONSOLE COVER REMOVAL/INSTALLATION .)  

9. Console (See CONSOLE REMOVAL/INSTALLATION .)  

4. Remove in the order indicated in the table.  

5. Install in the reverse order of removal. 

Fig. 15: Identifying Rear Air Mix Actuator Removal Order 
Courtesy of MAZDA MOTORS CORP. 

REAR AIR MIX ACTUATOR INSPECTION 

1. Connect battery positive voltage to rear air mix actuator terminal F (or G), connect terminal G (or F) to 

ground, and then verify that the rear air mix actuator operates as shown in the table. 



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

REAR AIR MIX ACTUATOR OPERATION 

Fig. 16: Rear Air Mix Actuator Circuit Diagram 
Courtesy of MAZDA MOTORS CORP.

Terminal

Rear air mix actuator operation

F

G

B+

Ground

HOT --> COLD

Ground

B+

COLD --> HOT

 

2008 Mazda CX-9 Grand Touring 

2008 HVAC Control System (HVAC) - Mazda CX-9

  

Microsoft 

 

Sunday, November 15, 2009 10:12:35 AM

Page 10 

© 2005 Mitchell Repair Information Company, LLC. 

Fig. 17: Rear Air Mix Actuator Inspection 
Courtesy of MAZDA MOTORS CORP. 

2. Verify that the resistance between the terminals terminals C and E, and E and A matches the rear air mix 

actuator operation as shown in the graph. 



If the operation condition and resistance are not normal, replace the rear air mix actuator. 

Fig. 18: Rear Air Mix Actuator Operation Terminals C & E With E & A Resistance Graph 
Courtesy of MAZDA MOTORS CORP. 

FRONT AIRFLOW MODE ACTUATOR REMOVAL/INSTALLATION 

1. Disconnect the negative battery cable.  

2. Remove the following parts: 

1. Decoration panel (See DECORATION PANEL REMOVAL/INSTALLATION .)  

2. Front console box mat (See FRONT CONSOLE BOX MAT REMOVAL/INSTALLATION .)  

3. Indicator panel (See INDICATOR PANEL REMOVAL/INSTALLATION .)  

4. Front console box (See FRONT CONSOLE BOX REMOVAL/INSTALLATION .)  

5. Dashboard under cover (See DASHBOARD UNDER COVER REMOVAL/INSTALLATION .) 

6. Side wall (See SIDE WALL REMOVAL/INSTALLATION .)  

7. Console panel (See CONSOLE PANEL REMOVAL/INSTALLATION .)  

8. Console cover (See CONSOLE COVER REMOVAL/INSTALLATION .)  

9. Console (See CONSOLE REMOVAL/INSTALLATION .) 

 

2008 Mazda CX-9 Grand Touring 

2008 HVAC Control System (HVAC) - Mazda CX-9

  

Microsoft 

 

Sunday, November 15, 2009 10:12:35 AM

Page 11 

© 2005 Mitchell Repair Information Company, LLC. 

10. Front scuff plate inner (See FRONT SCUFF PLATE REMOVAL/INSTALLATION .)  

11. Front side trim (See FRONT SIDE TRIM REMOVAL/INSTALLATION .)  

12. Glove compartment (See GLOVE COMPARTMENT REMOVAL/INSTALLATION .)  

13. Hood release lever (See HOOD LATCH AND RELEASE LEVER 

REMOVAL/INSTALLATION .)  

14. Lower panel (See LOWER PANEL REMOVAL/INSTALLATION .)  

15. Lower column cover (See COLUMN COVER REMOVAL/INSTALLATION .)  

16. Driver-side air bag module (See DRIVER-SIDE AIR BAG MODULE 

REMOVAL/INSTALLATION .)  

17. Steering wheel (See STEERING WHEEL AND COLUMN REMOVAL/INSTALLATION .)  

18. Combination switch (See COMBINATION SWITCH REMOVAL/INSTALLATION .)  

19. Center panel (See CENTER PANEL REMOVAL/INSTALLATION .)  

20. Meter hood (See METER HOOD REMOVAL/INSTALLATION .)  

21. Instrument cluster (See INSTRUMENT CLUSTER REMOVAL/INSTALLATION .)  

22. Audio unit (See AUDIO UNIT REMOVAL/INSTALLATION .)  

23. Steering shaft (See STEERING WHEEL AND COLUMN REMOVAL/INSTALLATION .)  

24. A-pillar trim (See A-PILLAR TRIM REMOVAL/INSTALLATION .)  

25. Side panel (See SIDE PANEL REMOVAL/INSTALLATION .)  

3. Disconnect the front door wiring harness connector (Driver side). (See FRONT DOOR MODULE 

REMOVAL/INSTALLATION .)  

4. Disconnect the dashboard harness connectors.  

5. Remove the brake switch from the brake pedal with the brake switch connector connected. (See BRAKE 

PEDAL REMOVAL/INSTALLATION .)  

6. Remove the selector lever component. (See SELECTOR LEVER COMPONENT 

REMOVAL/INSTALLATION .)  

7. Remove the windshield wiper arm and blade. (See WINDSHIELD WIPER ARM AND BLADE 

REMOVAL/INSTALLATION .)  

8. Remove the cowl grille. (See COWL GRILLE REMOVAL/INSTALLATION .)  

9. Remove the windshield wiper motor. (See WINDSHIELD WIPER MOTOR 

REMOVAL/INSTALLATION .)  

10. Remove the dashboard. (See DASHBOARD REMOVAL/INSTALLATION .)  

11. Remove in the order indicated in the table.  

12. Install in the reverse order of removal. 

 

2008 Mazda CX-9 Grand Touring 

2008 HVAC Control System (HVAC) - Mazda CX-9

  

Microsoft 

 

Sunday, November 15, 2009 10:12:35 AM

Page 12 

© 2005 Mitchell Repair Information Company, LLC. 

Fig. 19: Identifying Front Airflow Mode Actuator Removal Order 
Courtesy of MAZDA MOTORS CORP. 

FRONT AIRFLOW MODE ACTUATOR INSPECTION 

1. Connect battery positive voltage to front airflow mode actuator terminal F (or G), connect terminal G (or 

F) to ground, and then verify that the front airflow mode actuator operates as shown in the table. 



If the operation condition is not normal, replace the front airflow mode actuator.  

FRONT AIRFLOW MODE ACTUATOR OPERATION 

Fig. 20: Front Airflow Mode Actuator Circuit Diagram 
Courtesy of MAZDA MOTORS CORP.

Terminal

Front airflow mode actuator operation

F

G

B+

Ground

VENT --> DEFROSTER

Ground

B+

DEFROSTER --> VENT

 

2008 Mazda CX-9 Grand Touring 

2008 HVAC Control System (HVAC) - Mazda CX-9

  

Microsoft 

 

Sunday, November 15, 2009 10:12:35 AM

Page 13 

© 2005 Mitchell Repair Information Company, LLC.