FCM - Ambient Temp Sensor Input Low

Test 1 - 2:

Test 3:

SYMPTOM
FCM - AMBIENT TEMP SENSOR INPUT LOW

WHEN MONITORED
Continuous with the ignition on.

SET CONDITION
The FCM detects less than 0.5 volts on the Ambient Temperature Sensor Signal circuit.

POSSIBLE CAUSES
- Ambient temperature sensor
- Ambient temperature sensor signal circuit short to ground
- Ambient temperature sensor signal circuit short to sensor return circuit
- Front control module