September 30: LEMON manuals is back up on a temporary server! Slowness is possible
Upshift Telltale
On manual transaxle vehicles, the PCM optimizes fuel economy by informing the driver when the transaxle should be shifted to the next higher gear. The PCM bases its determination on engine speed, vehicle speed and engine load. When the PCM determines that the driver should shift to the next higher gear, it sends a message to the I/P cluster over the Class II link to turn On the Upshift telltale.