This procedure tests the resistance of the level sensor itself. It does not test the level sensor circuit.
The level sensor is a variable resistor. Its resistance changes with the amount of fuel in the tank. The float arm attached to the sensor moves as the fuel level changes.
- To test the level sensor, connect an ohmmeter across the sensor signal and sensor ground terminals of the fuel pump module connector.
- Move the float lever to the positions shown in the resistance chart. Record the resistance at each point.
Replace the level sensor if the resistance is not within specifications