RAM 2500 Truck 2WD V10-8.0L VIN W (2003)
Ambient Temperature Sensor / Switch HVAC: Testing and Inspection
FCM-Ambient Temp Sensor Input Open
Test 1 - 2
Test 3 - 4
SYMPTOM
FCM - AMBIENT TEMP SENSOR INPUT OPEN
WHEN MONITORED
Continuous with the ignition on.
SET CONDITION
The FCM detects more than 5.0 volts on the Ambient Temperature Sensor Signal circuit.
