Indicators

The indicator lights are controlled by different conditions set forth in their associated systems. See the associated system for the indicator light circuit description.

Low Fuel Warning Light
When there is an adequate amount of the fuel in the fuel tank, the resistance of the fuel tank unit is very high and the low fuel warning light will not go ON. When the fuel level becomes low, the resistance of the fuel tank decreases, allowing current flow through the low fuel warning light and the light goes ON.

Bulb Check:
With the ignition switch in ON or START, battery voltage is applied to the "BRAKE" warning, "O2" sensor warning, low fuel warning, and charge warning lights. The alternator will provide ground to the circuit until the engine is running. The lights go ON to test the light bulbs and then go OFF after the engine is started.