Fuel Gauge: Testing and Inspection

1. Disconnect the connector from the fuel sender.
2. Turn the ignition switch ON, check that the gauge needle indicates EMPTY and turn the ignition switch OFF.




3. Connect terminals 2 and 3 on the wire harness side connector through a 3.4 watt, 12 V test bulb.
4. Turn the ignition switch ON, check that the bulb lights up and fuel gauge needle moves to full.

Fuel sender resistance




1. Measure (with the float as the "F" position and at the "E" position) the resistance between ground and the sender terminal for the fuel gauge.
Standard specification
Point F : ..................................... Approx. 7 Ohms
Point 1/2 : .................................. Approx. 32 Ohms
Point E : ..................................... Approx. 95 Ohms

2. Also check that the resistance changes smoothly when the float moves from to "F" to "E".

Fuel level sensor
1. Connect the sender with a test lamp (12 V, 3.4 W) to the battery and immerse it in water.




2. The lamp should be off while the thermistor is beneath the water, and should illuminate when the sender is taken out of the water.


NOTE: If there is a malfunction, replace the fuel sender as an assembly.


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