Cooler thermistor (evaporator sensor)
Components Inspection Removal / installation
AIR CONDITIONER
COOLER THERMISTOR (EVAPORATOR SENSOR)
EXPLODED VIEW
REMOVAL
WARNING:
The following service operations include the works which may affect the SRS airbag system. Before starting work, always be sure to confirm the precautions related to the SRS airbag system. (Refer to 
)
)1. Precautions
CAUTION:
After turning the ignition switch to OFF, you may have to wait for a while before disconnecting the battery terminals. Check appropriate precautions for battery terminal disconnection before proceeding. (Refer to )
)2. Disconnection of the battery ground terminal
(1) Turn the ignition switch to OFF, disconnect the battery ground terminal, and then wait for 60 seconds before starting the work.
WARNING:
The air bag and pretensioner system are fitted with a backup power supply. If you start the work within 60 seconds after disconnecting the battery ground terminal, the air bag may be activated.
CAUTION:
To avoid damage to the molding, be sure to fully open the door glasses on both driver’s and passenger’s sides.
3. Removal of air conditioner unit ASSY (for automatic air conditioning system) (Refer to )
)4. Removal of air conditioner unit ASSY (for manual air conditioning system) (Refer to )
)5. Removal of aspirator (for automatic air conditioning system) (Refer to )
)6. Removal of air outlet damper control cable SUB-ASSY (for manual air conditioning system) (RHD model) (Refer to )
)7. Removal of heater control cable SUB-ASSY (for manual air conditioning system) (Refer to )
)8. Removal of cooler expansion valve (Refer to )
)9. Removal of cooling unit case (for automatic air conditioning system) (Refer to )
)10. Removal of cooling unit case (for manual air conditioning system) (Refer to )
)11. Removal of cooler evaporator NO.1. (Refer to )
)12. Connection of air conditioner tube ASSY (Refer to )
)
13. Removal of cooler thermistor NO.1
(1) Remove cooler thermistor NO.1 from cooler evaporator NO.1.
INSTALLATION
1. Installation of cooler thermistor NO.1
(1) Install cooler thermistor NO.1 at the position in the figure.
| Place |
Length |
|
|---|---|---|
| *a |
34.3 mm {1.350in} |
|
| *b |
27.6 mm {1.087in} |
|
| *c |
50 mm {1.970in} |
|
Captions in illustration
| *1 |
Sensor (5th row) |
| *2 |
Fastening portion |
| *3 |
From tank |
CAUTION:
·To maintain the retaining force of cooler thermistor NO.1, insert it only once.
·When reusing cooler evaporator NO.1, insert it into the position one row adjacent (either left or right) to the position where it was inserted before. (“X” in the figure)
·After cooler thermistor NO.1 is inserted, do not apply undue force to the lead wire.
·Insert it straight until the end of the plastic case comes in contact with the end of cooler evaporator NO.1.
·When reusing cooler evaporator NO.1, insert it into the position one row adjacent (either left or right) to the position where it was inserted before. (“X” in the figure)
·After cooler thermistor NO.1 is inserted, do not apply undue force to the lead wire.
·Insert it straight until the end of the plastic case comes in contact with the end of cooler evaporator NO.1.
2. Installation of air conditioner tube ASSY (Refer to )
)3. Installation of cooler evaporator NO.1 (Refer to )
)4. Installation of cooling unit case (for automatic air conditioning system) (Refer to )
)5. Installation of cooling unit case (for manual air conditioning system) (Refer to )
)6. Installation of cooler expansion valve (Refer to )
)7. Installation of heater control cable SUB-ASSY (for manual air conditioning system) (Refer to )
)8. Installation of air outlet damper control cable SUB-ASSY (for manual air conditioning system) (Refer to )
)9. Aspirator installation (for automatic air conditioning system) (RHD model) (Refer to )
)10. Removal of air conditioner unit ASSY (for automatic air conditioning system) (Refer to )
)11. Installation of air conditioner unit ASSY (for manual air conditioning system) (Refer to )
)12. Connection of the battery ground terminal
Standard value:
Standard value:
Tightening torque=6.0N·m
{
61kgf·cm}
{4.4ft·lbf}
13. Inspection of the airbag warning light (Refer to )
)14. Settings when removing/installing battery terminals (Refer to )
)UNIT INSPECTION
1. Inspection of cooler thermistor NO.1
(1) Check the resistance between the connector terminals.
Captions in illustration
| *a |
Connector not connected (cooler thermistor NO.1) |
*b |
Temperature sensor |
| *c |
Resistance (kΩ) |
*d |
Tolerance range |
| *e |
Temperature (°C {°F}) |
* |
- |
Resistance
| Inspection terminals |
Inspection conditions |
Standard value |
|---|---|---|
| 1 (+) - 2 (-) |
-10°C {14°F} |
7.30 to 9.10 kΩ |
| -5°C {23°F} |
5.65 to 6.95 kΩ |
|
| 0°C {32°F} |
4.40 to 5.35 kΩ |
|
| 5°C {41°F} |
3.40 to 4.15 kΩ |
|
| 10°C {50°F} |
2.70 to 3.25 kΩ |
|
| 15°C {59°F} |
2.14 to 2.58 kΩ |
|
| 20°C {68°F} |
1.71 to 2.05 kΩ |
|
| 25°C {77°F} |
1.38 to 1.64 kΩ |
|
| 30°C {86°F} |
1.11 to 1.32 kΩ |
NOTE:
·If you touch the temperature sensor, correct judgment cannot be made due to your body temperature. To inspect cooler thermistor NO.1, hold the connector side.
·Perform inspection after cooler thermistor NO.1 is adapted to the ambient temperature.
·Perform inspection after cooler thermistor NO.1 is adapted to the ambient temperature.