Diagnosis Procedure

FUEL LEVEL SENSOR SIGNAL CIRCUIT


Description

The fuel level sensor unit and fuel level pump (fuel level sensor) detect the fuel level in the fuel tank and transmit the fuel level sensor signal to the combination meter.





FUEL LEVEL SENSOR SIGNAL CIRCUIT


Diagnosis Procedure

1.CHECK COMBINATION METER INPUT SIGNAL
1. Turn ignition switch ON.
2. Check voltage between combination meter harness connector terminal and ground.





Does it match fuel gauge reading?
YES - GO TO 2.
NO - Replace the combination meter.
2.CHECK FUEL LEVEL SENSOR CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect combination meter connector and fuel level sensor unit and fuel pump (fuel level sensor) connector.
3. Check continuity between combination meter harness connector terminal and fuel level sensor unit and fuel pump (fuel level sensor) harness connector terminal.





4. Check continuity between combination meter harness connector terminal and ground.





Is the inspection result normal?
YES - GO TO 3.
NO - Repair harness or connector.
3.CHECK FUEL LEVEL SENSOR GROUND CIRCUIT
Check continuity between fuel level sensor unit and fuel pump (fuel level sensor) harness connector terminal and combination meter harness connector terminal.





Is the inspection result normal?
YES - INSPECTION END
NO - Repair harness or connector.