Mazda CX-9 Grand Touring. Manual — part 422

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.

Fig. 8: Identifying Front Air Mix Actuator Remove Order - Passenger Side
Courtesy of MAZDA MOTORS CORP.

FRONT AIR MIX ACTUATOR INSPECTION

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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DRIVER SIDE

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

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



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

FRONT AIR MIX ACTUATOR OPERATION

Fig. 9: Front Air Mix Actuator Circuit Diagram - Driver Side
Courtesy of MAZDA MOTORS CORP.

Fig. 10: Inspecting Front Air Mix Actuator - Driver Side
Courtesy of MAZDA MOTORS CORP.

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

operation as shown in the graph.



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

Terminal

Front 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

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© 2005 Mitchell Repair Information Company, LLC.

Fig. 11: Front Air Mix Actuator Operation Terminals A & E With E & C Resistance Graph -
Driver Side
Courtesy of MAZDA MOTORS CORP.

PASSENGER SIDE

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

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



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

FRONT AIR MIX ACTUATOR OPERATION

Fig. 12: Front Air Mix Actuator Circuit Diagram - Passenger Side
Courtesy of MAZDA MOTORS CORP.

Terminal

Front air mix actuator operation

F

G

B+

Ground

COLD --> HOT

Ground

B+

HOT --> COLD

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. 13: Inspecting Front Air Mix Actuator - Passenger Side
Courtesy of MAZDA MOTORS CORP.

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

operation as shown in the graph.



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

Fig. 14: Front Air Mix Actuator Operation Terminals A & E With E & C Resistance Graph -
Passenger Side
Courtesy of MAZDA MOTORS CORP.

REAR AIR MIX 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 under cover (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

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

Page 9

© 2005 Mitchell Repair Information Company, LLC.