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Low Fuel Indicator

  1. When ignition is turned on, tank indicator should come on if fuel level is below 1/4 of a tank. Otherwise it should go off. If operation is faulty, perform the following test at low fuel wiring connector, with ignition on.
  2. Connect a test light to terminal No. 2 and ground, then terminal No. 3 and ground. Terminal No. 1 is blank. Light will blink on in both cases but should be brighter at terminal No. 3.
  3. Connect test light between 12-volt source and terminal No. 4. Test light should be on. Connect test light between terminal No. 5 and ground. Light will be on. Connect jumper between 12-volt source and terminal No. 6. Fuel indicator should light.
  4. If any test fails, check for bad wiring, blown fuse or defective bulb. If all terminals test properly, check gauge and IVR. If both are good, replace low fuel indicator switch/sensor.
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