Evaporator Temperature Sensor Repair Procedures

Inspection

1. 1
   Turn the ignition off.
2. 2
   Disconnect the evaporator temperature sensor connector.
3. 3
   Measure the resistance between terminals "+" and "-" of the evaporator temperature sensor.

   

   Specification

   Evaporator Core Temperature [°C (°F)]	Resistance [kΩ]	Voltage [V]
   -10 (14)	43,35	2,96
   0 (32)	27,62	2,4
   10 (50)	18.07	1,88
   20 (68)	12.11	1,44
   30 (86)	8.30	1,08
   40 (104)	5,81	0,81

   
   

   

   1. Sensor Ground

   2. Evaporator Sensor (+)

Diagnosis Using GDS

1. 1
   The Heating, Ventilation and Air Conditioning (HVAC) system can quickly diagnose faulty parts using the Global Diagnostic System (GDS).
   The Diagnostic System (GDS) provides the following information. (1) Self-diagnosis: Check the Diagnostic Trouble Code (DTC) and display. (2) Current data: Check the input/output status of the system. (3) Actuation test: Check the operating status of the system. (4) Additional functions: Other controls such as system option and zero point adjustment.
2. 2
   Select "Vehicle Model" and the system to be checked to inspect the vehicle with the tester.
3. 3
   Select the "Current Data" menu to check the current input/output status. The input/output data for sensors corresponding to the evaporator temperature sensor can be checked.

   

Replacement

1. 1
   Disconnect the negative (-) battery terminal.
2. 2
   Disconnect the evaporator temperature sensor connector (A).

   

3. 3
   Remove the evaporator temperature sensor (A) by turning it 90° counterclockwise and pulling it out.

   

4. 4
   To install, reverse the removal procedure.