Evaporator Temperature Sensor Failure

Test 1 - 2:

Test 3 - 8:

Test 9 - 12:

SYMPTOM
EVAPORATOR TEMPERATURE SENSOR FAILURE

WHEN MONITORED
With ignition ON.

SET CONDITION
When the BCM detects an abnormally high or low voltage on the evaporator temperature sensor.

POSSIBLE CAUSES
- System is operational
- Sensor ground open
- Evaporator TEMP sensor signal CKT open
- Evaporator TEMP sensor signal CKT short to sensor ground
- Evaporator TEMP sensor signal wire short to ground
- Evaporator temperature sensor signal CKT short to voltage
- Evaporator temperature sensor open
- Evaporator temperature sensor - code returns
- Body control module - evaporator TEMP sensor stays high
- Body control module - evaporator TEMP sensor stays low
- Evaporator temperature sensor - code with A/C operating