Ambient Temp Sensor: Description
WARNING: This page is about a different car, the 2004 Chrysler Pacifica. However, it is still accessible from the selected car via links, so may be relevant.
Ambient air temperature is monitored through ambient temperature messages received from the Front Control Module (FCM) over the Programmable Communications Interface (PCI) data bus circuit. The FCM receives a hard wired input from the ambient temperature sensor. The ambient temperature sensor (Fig 1 ) is a variable resistor mounted to a bracket that is secured with a screw to the left side of the cooling module, behind the front grille.
For more information on the Front Control Module refer to ELECTRONIC CONTROL MODULES . The ambient temperature sensor cannot be adjusted or repaired and, if faulty or damaged, it must be replaced.