Fuel Gauge Module: Description and Operation

The fuel indicator module provides a signal delay to the fuel gauge to prevent the fuel gauge pointer from fluctuating as a result of excessive fuel movement in the fuel tank. The fuel indicator module has additional circuitry to turn on a LOW FUEL indicator (if equipped) when the fuel gauge shows approximately 1/8 tank of fuel remaining. The module is not designed to prove out the LOW FUEL indicator; however, the indicator may flash on momentarily just after ignition switch is turned to the ON position. The module is a small printed circuit board attached to the back of the instrument cluster printed circuit. The electrical connections for ignition, ground, input from fuel level sensor output to the fuel gauge, and low fuel indicator output (where equipped) are made through a spring-type connector on the module to the instrument cluster printed circuit on the instrument cluster. There are no provisions for calibration or adjustment of the fuel indicator module.