Up-Shift Indicator Lamp (Manual Transmission Only)

The up-shift indicator in the instrument cluster turns on to indicate optimum shift points for maximum fuel economy. When this lamp turns on. shift. the transmission to the next higher gear range, if conditions permit.
Control of the up-shift indicator is a function of the PCM/VCM Several conditions are monitored such as the engine speed, load, and the throttle position to turn on the lamp If the lamp is erratic or inoperative, verify the integrity of the circuit. then replace the PCM/VCM if no resolution is found.