Low Fuel Level Warning Switch
The Low Fuel Level Warning Switch Assembly (ELFW) is a solid-state device without a housing or wiring connector. It mounts directly to the instrument cluster backplate and makes electrical connection to the cluster printed circuit pads through flexible terminals that scratch through any oxide buildup. There is no provision for adjustment of calibration. It is set to switch the indicator warning lamp on when fuel level reaches approximately one-eighth tank. It contains a one minute electronic filter to prevent erratic switching due to fuel movement in the tank. The filter prevents the ELFW from providing a momentary prove out after initial ignition start-up.