Mazda CX-9 Grand Touring. Manual - part 436

 

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Mazda CX-9 Grand Touring. Manual - part 436

 

 

2008 HVAC

Technical Data (HVAC) - Mazda CX-9 

HVAC TECHNICAL DATA 

HVAC TECHNICAL DATA 

Item

Specification

REFRIGERANT SYSTEM 

Refrigerant

Type

R-134a

Regular amount (approx. quantity)

(g {oz})

660-710 {23.3-25.0}

BASIC SYSTEM 

A/C 
compressor

Lubrication 
oil

Type

DENSO OIL8

Sealed volume (approx. 
quantity)

(ml {cc, fl 
oz})

160(160,5.41}

CONTROL SYSTEM 
A/C 
compressor

Magnetic clutch clearance

(mm {in})

0.35-0.65 {0.014-

0.025}

 

2008 Mazda CX-9 Grand Touring 

2008 HVAC Technical Data (HVAC) - Mazda CX-9

  

 

2008 Mazda CX-9 Grand Touring 

2008 HVAC Technical Data (HVAC) - Mazda CX-9

  

Microsoft 

 

Sunday, November 15, 2009 10:13:52 AM

Page 1 

© 2005 Mitchell Repair Information Company, LLC. 

Microsoft 

 

Sunday, November 15, 2009 10:13:55 AM

Page 1 

© 2005 Mitchell Repair Information Company, LLC. 

2008 HVAC

Symptom Troubleshooting (HVAC) - Mazda CX-9 

HVAC SYSTEM WIRING DIAGRAM 

FRONT 

Fig. 1: HVAC System Wiring Diagram - Front 
Courtesy of MAZDA MOTORS CORP. 

REAR 

 

2008 Mazda CX-9 Grand Touring 

2008 HVAC Symptom Troubleshooting (HVAC) - Mazda CX-9

  

 

2008 Mazda CX-9 Grand Touring 

2008 HVAC Symptom Troubleshooting (HVAC) - Mazda CX-9

  

Microsoft 

 

Sunday, November 15, 2009 10:14:50 AM

Page 1 

© 2005 Mitchell Repair Information Company, LLC. 

Microsoft 

 

Sunday, November 15, 2009 10:14:55 AM

Page 1 

© 2005 Mitchell Repair Information Company, LLC. 

Fig. 2: HVAC System Wiring Diagram - Rear 
Courtesy of MAZDA MOTORS CORP. 

FOREWORD 

The areas for inspection (steps) are given according to various circuit malfunctions. Use the following 
chart to verify the symptoms of the trouble in order to diagnose the appropriate area.  

TROUBLESHOOTING INDEX 

TROUBLESHOOTING INDEX 

No. TROUBLESHOOTING ITEM

DESCRIPTION

1

Insufficient air (or no air) blown 
from front vents

Problem with each vent and/or duct  

Front airflow mode does not change when switching front 
mode switch.  

2

Amount of air blown from front 
vents does not change

Malfunction in front blower system  

Amount of air blown front vents does not change when 
switching front climate control unit t airflow control dial.  

3

Air intake mode from front vent 
does not change

Malfunction in A/C unit and/or front climate control unit 
air intake mode switching system  

Air intake mode does not change when switching 

 

2008 Mazda CX-9 Grand Touring 

2008 HVAC Symptom Troubleshooting (HVAC) - Mazda CX-9

  

Microsoft 

 

Sunday, November 15, 2009 10:14:50 AM

Page 2 

© 2005 Mitchell Repair Information Company, LLC. 

NO.1 INSUFFICIENT AIR (OR NO AIR) BLOWN FROM FRONT VENTS 

NO.1 INSUFFICIENT AIR (OR NO AIR) BLOWN FROM FRONT VENTS DESCRIPTION AND 
POSSIBLE CAUSE
 

REC/FRESH mode.  

4

No temperature control with front 
climate control unit

Malfunction in A/C unit and/or front climate control unit 
air mix system  

Temperature does not change when switching front 
climate control unit temperature setting dial.  

5 Windshield fogged

Malfunction in A/C compressor control system and/or air 
intake mode switching system  

A/C compressor does not operate while airflow mode is 
DEFROSTER or HEAT/DEF modes.  

Air intake mode does not change to FRESH while airflow 
mode is in DEFROSTER or HEAT/DEF modes.  

6

Insufficient air (or no air) from rear 
vent

Problem with each rear vent and/or duct  

Rear airflow mode does not change when front and/or 
rear climate control unit mode switches.  

7

Amount of air from rear vent does 
not change

Malfunction in rear blower motor system  

Amount of air blowing rear vents does not change when 
switching front and/or rear climate control unit airflow 
volume control dial.  

8

Air from front/rear vents not cold 
enough

Malfunction in A/C basic system  

Magnetic clutch operates but A/C system malfunctions.  

9 No cool air from front/rear vents

Malfunction in A/C compressor control system  

Magnetic clutch does not operate when the A/C system is 
turned ON.  

10 Noise while operating A/C system

Problem with A/C basic system installation  

Noise from magnetic clutch, A/C compressor, hose or 
refrigerant line.  

11

Dual A/C control function does not 
operate

Malfunction in A/C unit and/or front climate control unit 
dual A/C control system  

Driver or passenger-side temperature control dial does not 
operate individually.  

1

Insufficient air (or no air) blown from front vents

DESCRIPTION 

Problem with each vent and/or duct  

Front airflow mode does not change when switching front mode switch.  

Malfunction in front airflow mode actuator  

 

2008 Mazda CX-9 Grand Touring 

2008 HVAC Symptom Troubleshooting (HVAC) - Mazda CX-9

  

Microsoft 

 

Sunday, November 15, 2009 10:14:50 AM

Page 3 

© 2005 Mitchell Repair Information Company, LLC. 

 

 

 

 

 

 

 

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