Fuel Level Sensor: Testing and Inspection

1. Connect the fuel gage unit to the battery via a test light (12 V - 3.4 W), and then immerse the fuel gage unit in water.
2. The condition is good if the test light switches off when the fuel gage unit thermistor is in water and illuminates when the thermistor is removed from the water.
3. If all the checks are correct, the fuel gauge unit is OK. If any check is not correct replace the fuel gauge unit.

CAUTION: After completing this test, wipe the unit dry and install it to the fuel tank.