Ambient Temperature Sensor Circuit Open

Test 1 - 2:

Test 3 - 4:

SYMPTOM
AMBIENT TEMPERATURE SENSOR CIRCUIT OPEN

WHEN MONITORED
With the ignition on.

SET CONDITION
The BCM detects the Ambient Temperature Sensor signal circuit voltage is above 4.8 volts for 5 seconds or more. Customer complaint: EVIC temperature display is -40 degrees C (-40 degrees F).

POSSIBLE CAUSES
- Ambient temperature sensor signal circuit short to voltage
- Ambient temperature sensor
- Ambient temperature sensor return circuit open
- Ambient temperature sensor signal circuit open
- Body control module