Low Fuel Indicator

Turn ignition to "ON" position. Indicator light should come on, but for less than one minute if tank is more than one-quarter full of fuel. If indicator remains on, or if indicator does not turn on when tank is less than one-quarter full of fuel, perform the following checks at the wiring harness-to-switch connector. Terminal one is blank. Connect self-powered test light between terminal two and ground, then between terminal three and ground. Test light should blink at both terminals, but light should be brighter at terminal three. Test light should remain on when connected between terminal four and battery positive post; and also remain on when connected between terminal five and ground. When a jumper wire is connected between terminal six and battery positive post, indicator light should turn on and remain on. If any test fails, repair open circuit in wire to that particular terminal. If all terminals test good, make fuel gauge and IVR calibration test. If gauge and IVR calibration test is good, replace low fuel warning sensor/switch and retest.