Mazda CX-9 Grand Touring. Manual — part 427
Fig. 43: View Of Solar Radiation Sensor
Courtesy of MAZDA MOTORS CORP.
SOLAR RADIATION SENSOR INSPECTION
1. Using a tester, connect the positive (+) lead to solar radiation sensor terminal A, the negative (-) lead to
terminal B or C, then measure the resistance.
If the resistance is not normal, replace the solar radiation sensor.
Resistance
except infinity ohms
2. Block the light to the solar radiation sensor, connect the positive (+) lead of a tester to solar radiation
sensor terminal B or C and negative (-) lead to terminal A, then measure the resistance.
If the resistance is not normal, replace the solar radiation sensor.
Resistance
infinity ohms (no continuity)
3. Expose the solar radiation sensor to natural sunlight.
4. Using a tester, connect the positive (+) lead to solar radiation sensor terminal B or C, the negative (-) lead
to terminal A, then measure the resistance.
If the resistance is not normal, replace the solar radiation sensor.
2008 Mazda CX-9 Grand Touring
2008 HVAC Control System (HVAC) - Mazda CX-9
Microsoft
Sunday, November 15, 2009 10:12:36 AM
Page 26
© 2005 Mitchell Repair Information Company, LLC.
Fig. 44: Measuring Solar Radiation Sensor Terminal Resistance
Courtesy of MAZDA MOTORS CORP.
Resistance
except infinity ohms
AMBIENT TEMPERATURE SENSOR REMOVAL/INSTALLATION
1. Disconnect the negative battery cable.
2. Remove the under cover.
3. Remove in the order indicated in the table.
Fig. 45: Identifying Ambient Temperature Sensor Removal Order
Courtesy of MAZDA MOTORS CORP.
4. Install in the reverse order of removal.
AMBIENT TEMPERATURE SENSOR INSPECTION
1. Measure the temperature around the ambient temperature sensor and measure the resistance between the
ambient temperature sensor terminal.
If the characteristics of the ambient temperature sensor are not as shown in the graph, replace the
ambient temperature sensor.
2008 Mazda CX-9 Grand Touring
2008 HVAC Control System (HVAC) - Mazda CX-9
Microsoft
Sunday, November 15, 2009 10:12:36 AM
Page 27
© 2005 Mitchell Repair Information Company, LLC.
Fig. 46: Ambient Temperature Sensor Temperature & Resistance Graph
Courtesy of MAZDA MOTORS CORP.
CABIN TEMPERATURE SENSOR REMOVAL/INSTALLATION
1. Disconnect the negative battery cable.
2. Remove the following parts:
1. Dashboard under cover (Driver side) (See DASHBOARD UNDER COVER
REMOVAL/INSTALLATION .)
2. Side wall (See SIDE WALL REMOVAL/INSTALLATION .)
3. Console panel (LH) (See CONSOLE PANEL REMOVAL/INSTALLATION .)
4. Hood release lever (See HOOD LATCH AND RELEASE LEVER
REMOVAL/INSTALLATION .)
5. Lower panel (See LOWER PANEL REMOVAL/INSTALLATION .)
3. Remove the screw.
4. Remove the cabin temperature sensor cover in the direction of the arrow.
5. Remove the cabin temperature sensor.
6. 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 10:12:36 AM
Page 28
© 2005 Mitchell Repair Information Company, LLC.
Fig. 47: Identifying Cabin Temperature Sensor & Cover
Courtesy of MAZDA MOTORS CORP.
CABIN TEMPERATURE SENSOR INSPECTION
1. Measure the temperature around the cabin temperature sensor and measure the resistance between cabin
temperature sensor terminal.
If the characteristics of the cabin temperature sensor are not as shown in the graph, replace the
cabin temperature sensor.
Fig. 48: Cabin 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 29
© 2005 Mitchell Repair Information Company, LLC.
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