In-Car Temperature Sensor: Description

WARNING: This page is about a different car, the 2003 Dodge Intrepid, 2003 Chrysler Intrepid, 2003 Chrysler Concorde, and 2003 Chrysler 300M. However, it is still accessible from the selected car via links, so may be relevant.

The Automatic Temperature Control (ATC) in-car temperature sensor returns electrical signals to the Body Control Module (BCM). The in-car temperature sensor is used on ATC equipped vehicles only. The in- car temperature sensor is made up of two parts. One part is the in-car sensor aspirator motor assembly, and the second part is a temperature thermistor. The in-car sensor aspirator motor assembly attaches to the back of the ATC Control head Fig 1 . This assembly has a small fan and a motor which draws air through the intake on the front of the ATC control. The in-car sensor thermistor is located inside of the ATC Control Head. The in-car sensor aspirator motor is part of the ATC Control and not a separate serviceable part. The ATC Control must be replaced if there is a fault relating to the motor. The in-car temperature sensor thermistor is part of the ATC Control and not a separate serviceable part. One must replace the ATC Control if the ATC self-diagnostics indicates a fault code. (Refer to DIAGNOSIS AND TESTING ).

Fig 1: Identifying ATC In-Car Temperature Sensor

Courtesy of DAIMLERCHRYSLER CORP.