Fuel Gage Operation

Under normal conditions the instrument panel fuel gage displays the level of fuel that the vehicle is operating on. A fuel gage selector switch allows the two different fuel system tank levels to be displayed by the one instrument panel fuel gage. The fuel gage selector switch is a momentary-closed type switch located near the headlamp switch assembly. The fuel gage switch allows the vehicle operator to observe the fuel level of the non-operating fuel system. The PCM monitors the status of the switch. When the switch is depressed the PCM changes the fuel level signal to display the non-operating system fuel level. Once requested, the non-operating fuel system level will be displayed for about 10 seconds.

The PCM communicates the fuel level information to the instrument panel cluster through Class 2 serial data.