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

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Sunday, November 15, 2009 10:12:35 AM

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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.