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 START, battery voltage is applied through fuse 11 to the bulb check relay coil and through fuse 7 to the "BRAKE" warning and low fuel warning lights. The bulb check relay contacts close and the "BRAKE" warning and low fuel warning lights come ON for bulb check. The lights go out after the engine is running.