940 L4-2.3L SOHC VIN 88 B230F (1992)
Shift Light: Description and Operation
Bosch
Sent by the fuel injection ECU
PURPOSE
The upshift indicator light assists the driver by indicating the "general need" to shift into the next higher gear. This improves fuel economy and
reduces the danger of operating the vehicle in the wrong gear.
LOCATION
The lamp (upshift arrow) is located in the instrument panel.
OPERATION
The shift indicator lamp is controlled by the fuel injection ECU on vehicles equipped with manual transmissions only.
The fuel injection ECU sends current to the lamp when upshifting is indicated.