Mazda CX-9 Grand Touring. Manual - part 424

Fig. 21: Inspecting Front Airflow Mode Actuator 
Courtesy of MAZDA MOTORS CORP. 

2. Verify that the resistance between terminals C and E, and E and A matches the front airflow mode 

actuator operation as shown in the graph. 



If the operation condition and resistance are not normal, replace the front airflow mode actuator. 

Fig. 22: Front Airflow Mode Actuator Operation Terminals C & E With E & A Resistance 
Graph 
Courtesy of MAZDA MOTORS CORP. 

REAR AIRFLOW MODE ACTUATOR REMOVAL/INSTALLATION 

1. Slide the passenger-side front seat to the maximum forward end.  

2. Disconnect the negative battery cable.  

3. 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 undercover (See DASHBOARD UNDER COVER REMOVAL/INSTALLATION .) 

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

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

 

2008 Mazda CX-9 Grand Touring 

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

  

Microsoft 

 

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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. 23: Identifying Rear Airflow Mode Actuator Removal Order 
Courtesy of MAZDA MOTORS CORP. 

REAR AIRFLOW MODE ACTUATOR INSPECTION 

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

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



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

REAR AIRFLOW MODE ACTUATOR OPERATION 

Fig. 24: Rear Airflow Mode Actuator Circuit Diagram 
Courtesy of MAZDA MOTORS CORP.

Terminal

Rear airflow mode actuator operation

F

G

B+

Ground

VENT --> HEAT

Ground

B+

HEAT --> VENT

 

2008 Mazda CX-9 Grand Touring 

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

  

Microsoft 

 

Sunday, November 15, 2009 10:12:35 AM

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© 2005 Mitchell Repair Information Company, LLC. 

Fig. 25: Rear Airflow Mode Actuator Inspection 
Courtesy of MAZDA MOTORS CORP. 

2. Verify that the resistance between terminals A and E, and E and C matches the rear airflow mode actuator 

operation as shown in the graph. 



If the operation condition and resistance are not normal, replace the rear airflow mode actuator. 

Fig. 26: Rear Airflow Mode Actuator Operation Terminals A & E With E & C Resistance 
Graph 
Courtesy of MAZDA MOTORS CORP. 

FRONT BLOWER MOTOR REMOVAL/INSTALLATION 

1. Disconnect the negative battery cable.  

2. Remove the dashboard under cover, (passenger side) (See DASHBOARD UNDER COVER 

REMOVAL/INSTALLATION .)  

3. Remove in the order indicated in the table.  

4. 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

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© 2005 Mitchell Repair Information Company, LLC. 

Fig. 27: Identifying Front Blower Motor Removal Order 
Courtesy of MAZDA MOTORS CORP. 

FRONT BLOWER MOTOR INSPECTION 

1. Connect battery positive voltage to front blower motor terminal B, connect terminal A to ground, and 

then verify its operation. 



If there is any malfunction, replace the front blower motor. 

Fig. 28: Inspecting Front Blower Motor 
Courtesy of MAZDA MOTORS CORP. 

REAR BLOWER MOTOR 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 17 

© 2005 Mitchell Repair Information Company, LLC.