Turn the ignition switch OFF.
Disconnect the evaporator temperature sensor connector.
Measure resistance between terminal “+” and “-” of the evaporator temperature sensor.
Evaporator core temperature [°C (°F)] | Resistance[KΩ] | Voltage[V] |
-10 (14) | 17.93 | 3.215 |
0 (32) | 11.36 | 2.665 |
10 (50) | 7.40 | 2.131 |
20 (68) | 4.94 | 1.657 |
30 (86) | 3.369 | 1.263 |
40 (104) | 2.348 | 0.953 |
Connect the evaporator temperature sensor connector.
Run the engine and turn the A/C switch ON, then measure the voltage between the terminals of the harness connector.
Disconnect the negative (-) battery terminal.
Remove the heater and blower assembly.
(Refer to Heater - "Heater Unit")
Remove the heater unit lower case (A) after loosening the mounting screws.
Remove the evaporator sensor (A).
Install in the reverse order of removal.
