Low Fuel Level Sensor (Without Trip Computer)

Using a fused jumper wire set, connect battery voltage and a 12-volt, 3.4-watt test light between fuel gauge sending unit terminals No. 1 and 2. See Figure . Immerse fuel gauge sending unit in water until low fuel level sensor (thermistor) is submerged in water. Test light should illuminate when sensor is removed from water, and go out when submerged. Replace fuel gauge sending unit as an assembly if low fuel level sensor does not operate as specified.