Control Unit

ECM is located under center of dash, behind center console. See Fig 1 . ECM receives input voltage signals from a variety of input devices. ECM compares each voltage input signal to a preset parameter which is programmed into ECM. ECM instantly analyzes each input voltage signal and adjusts output voltage signals accordingly. This allows for lower emissions while maintaining fuel economy and driveability.

Fig 1: Locating Electronic Control Module (ECM)

Courtesy of CHRYSLER CORP.

NOTE: Components are grouped into 2 categories. The first category covers INPUT DEVICES, which control or produce voltage signals monitored by the ECM. The second category covers OUTPUT SIGNALS, which are components controlled by the ECM.