Shift Up Lamp
PRINCIPLE OF OPERATION, SHIFT UP LAMPNOTE: Only cars with a manual gearbox in certain markets.
The SHIFT UP lamp is located in the main instrument display panel and connected to a +15 supply. The lamp is controlled from pin 55 of the control module and tested for 3 seconds when the ignition is switched on.
When the car is being driven, the lamp lights up when a combination of light engine load and high engine speed obtains. This does not apply to 5th gear. When engine speed approaches maximum rpm the lamp will light up regardless of the throttle position.
The control module determines the gear that is engaged on the basis of engine rpm and vehicle speed.