Mazda CX-9 Grand Touring 2009 Manual page 1709

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