cardiagn.com (a) Remove the front evaporator temperature sensor. (b) Measure the resistance between terminals 1 and 2 of the evaporator temperature sensor connector at each temperature. Standard resistance: 4.5 to 5.2 kΩ at 0°C (32°F) 2.0 to 2.7 kΩ at 15°C (59°F) HINT: As the temperature increases, the resistance decreases. REPLACE FRONT EVAPORATOR TEMPERATURE NG SENSOR OK 3. CHECK WIRE HARNESS (AIR CONDITIONING AMPLIFIER - FRONT EVAPORATOR TEMPERATURE SENSOR) REPAIR OR REPLACE HARNESS AND NG CONNECTOR OK REPLACE AIR CONDITIONING AMPLIFIER NG REPLACE FRONT EVAPORATOR TEMPERATURE SENSOR NG REPAIR OR REPLACE HARNESS AND CONNECTOR OK REPLACE AIR CONDITIONING AMPLIFIER