Mazda CX-9 Grand Touring. Manual - part 428

 

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Mazda CX-9 Grand Touring. Manual - part 428

 

 

FRONT EVAPORATOR TEMPERATURE SENSOR 
REMOVAL/INSTALLATION 

1. Remove the front evaporator temperature sensor from the front A/C unit. (See FRONT A/C UNIT 

DISASSEMBLY/ASSEMBLY .)  

FRONT EVAPORATOR TEMPERATURE SENSOR INSPECTION 

1. Set the fan speed MAX HI.  

2. Set the temperature control at MAX COLD.  

3. Set the RECIRCULATE mode.  

4. Turn the A/C switch off.  

5. Close all doors and windows.  

6. Wait for 5 min.  

7. Remove the glove compartment (See GLOVE COMPARTMENT REMOVAL/INSTALLATION .)  

8. Disconnect the front evaporator temperature sensor connector.  

9. Measure the temperature at the blower inlet.  

10. Measure the resistance between the front evaporator temperature sensor terminals. 

If the resistance is not as shown in the graph, replace the front evaporator temperature sensor. 

Fig. 49: Front Evaporator Temperature Sensor Temperature & Resistance Graph 
Courtesy of MAZDA MOTORS CORP.

 

2008 Mazda CX-9 Grand Touring 

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

  

Microsoft 

 

Sunday, November 15, 2009 10:12:36 AM

Page 30 

© 2005 Mitchell Repair Information Company, LLC. 

REAR EVAPORATOR TEMPERATURE SENSOR 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. Side wall (See SIDE WALL REMOVAL/INSTALLATION .)  

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

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

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

9. Console (See CONSOLE REMOVAL/INSTALLATION .)  

3. Disconnect the rear evaporator temperature sensor connector and remove it from the rear A/C unit.  

4. Insert a flathead screwdriver as shown in the figure and remove the clip by prying it off.  

5. Remove the rear evaporator temperature sensor.  

6. Install in the reverse order of removal. 

Fig. 50: Identifying Rear Evaporator Temperature Sensor & Connector 
Courtesy of MAZDA MOTORS CORP. 

REAR EVAPORATOR TEMPERATURE SENSOR INSPECTION 

 

2008 Mazda CX-9 Grand Touring 

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

  

Microsoft 

 

Sunday, November 15, 2009 10:12:36 AM

Page 31 

© 2005 Mitchell Repair Information Company, LLC. 

1. Measure the temperature at the blower inlet.  

2. Measure the resistance between the rear evaporator temperature sensor terminals. 

If the resistance is not as shown in the graph, replace the rear evaporator temperature sensor. 

Fig. 51: Rear Evaporator Temperature Sensor Resistance & Temperature Graph 
Courtesy of MAZDA MOTORS CORP. 

REFRIGERANT PRESSURE SWITCH REMOVAL/INSTALLATION 

1. Disconnect the negative battery cable.  

2. Discharge the refrigerant from the system. (See REFRIGERANT RECOVERY .) (See 

REFRIGERANT CHARGING .)  

3. Grasp the piping block using pliers and remove the pressure switch using a spanner.  

4. Disconnect the refrigerant pressure switch connector.  

5. Remove in the order indicated in the table. 

 

2008 Mazda CX-9 Grand Touring 

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

  

Microsoft 

 

Sunday, November 15, 2009 10:12:36 AM

Page 32 

© 2005 Mitchell Repair Information Company, LLC. 

Fig. 52: Identifying Refrigerant Pressure Switch Components & Torque Specifications
Courtesy of MAZDA MOTORS CORP.
 

6. Install in the reverse order of removal.  

7. Perform the refrigerant system performance test. (See REFRIGERANT SYSTEM PERFORMANCE 

TEST .)  

REFRIGERANT PRESSURE SWITCH INSTALLATION NOTE 

1. Apply compressor oil to O-ring and connect the joint.  

REFRIGERANT PRESSURE SWITCH INSPECTION 

1. Install the manifold.  

2. Disconnect the refrigerant pressure switch connector.  

3. Verify the high-pressure side reading of the gauge and continuity between the refrigerant pressure switch 

terminals. 

If there is any malfunction, replace the refrigerant pressure switch. 

Fig. 53: Refrigerant Pressure Switch Terminals Continuity Chart (1 Of 3) 
Courtesy of MAZDA MOTORS CORP. 

Fig. 54: Refrigerant Pressure Switch Terminals Continuity Chart (2 Of 3) 
Courtesy of MAZDA MOTORS CORP.

 

2008 Mazda CX-9 Grand Touring 

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

  

Microsoft 

 

Sunday, November 15, 2009 10:12:36 AM

Page 33 

© 2005 Mitchell Repair Information Company, LLC. 

 

 

 

 

 

 

 

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