Shift Indicator Light
WARNING: This page is about a different car, the 1995 Plymouth Voyager, 1995 Plymouth Grand Voyager, 1995 Dodge Grand Caravan, and 1995 Dodge Caravan. However, it is still accessible from the selected car via links, so may be relevant.
PCM provides ground for shift indicator light on models equipped with manual transmission. Based on engine speed, throttle position, and vehicle speed, PCM turns shift indicator light on to advise driver to shift to a higher gear for optimum fuel economy.