FCM - Ambient Temp Sensor Input Low: Notes

WARNING: This page is about a different car, the 2005 Dodge Pickup and 2005 Dodge Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Ambient Temp Sensor Input Low Circuit Schematic

Courtesy of DAIMLERCHRYSLER CORP.

For the Electronic Overhead Module circuit diagram (Refer to ELECTRICAL/OVERHEAD CONSOLE - SCHEMATICS AND DIAGRAMS) .

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article.

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
(G31) AMBIENT TEMPERATURE SENSOR SIGNAL CIRCUIT SHORTED TO GROUND
(G31) AMBIENT TEMPERATURE SENSOR SIGNAL CIRCUIT SHORTED TO THE (G180) AMBIENT TEMPERATURE SENSOR GROUND CIRCUIT
AMBIENT TEMPERATURE SENSOR