Fuel Level Sensor Signal Circuit

FUEL LEVEL SENSOR SIGNAL CIRCUIT

Component Function Check


1. CHECK COMBINATION METER INPUT SIGNAL

Select the "Data Monitor" for the "METER/M&A" and compare the "FUEL METER" monitor value with the fuel gauge reading on the combination meter.





Does monitor value match fuel gauge reading?
YES- INSPECTION END
NO- Replace combination meter.


Diagnosis Procedure


1. CHECK COMBINATION METER INPUT SIGNAL

1.Turn ignition switch ON.
2.Check voltage between combination meter harness connector and ground.





Does it match fuel gauge reading?
YES- Replace the combination meter. Refer to "Removal and Installation" Removal And Installation.
NO- GO TO 2.

2. CHECK FUEL LEVEL SENSOR UNIT (MAIN) CIRCUIT

1.Turn ignition switch OFF.
2.Disconnect combination meter connector and fuel level sensor unit (main) connector.
3.Check continuity between combination meter harness connector and fuel level sensor unit (main) harness connector.





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





Is the inspection result normal?
YES- GO TO 3.
NO- Repair harness or connector.

3. CHECK FUEL LEVEL SENSOR UNIT GROUND CIRCUIT

Check continuity between fuel level sensor unit (main) harness connector and combination meter harness connector.





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


Component Inspection


2WD MODELS FOR NORTH AMERICA


1. REMOVE FUEL LEVEL SENSOR UNIT (MAIN)

Remove the fuel level sensor unit (main). Refer to "2WD : Removal and Installation" Type 1 Removal And Installation.
- GO TO 2.

2. CHECK FUEL LEVEL SENSOR UNIT (MAIN)






Check the resistance between fuel level sensor unit and fuel pump.





Is inspection result OK?
YES- INSPECTION END
NO- Replace fuel level sensor unit and fuel pump (main). Refer to "2WD : Removal and Installation" Type 1 Removal And Installation.

4WD MODELS FOR NORTH AMERICA


1. REMOVE FUEL LEVEL SENSOR UNIT (MAIN)

Remove the fuel level sensor unit (main). Refer to "AWD : Removal and Installation" Type 1 Removal And Installation.
- GO TO 2.

2. CHECK FUEL LEVEL SENSOR UNIT (MAIN)






Check the resistance between fuel level sensor unit and fuel pump.





Is inspection result OK?
YES- GO TO 3.
NO- Replace fuel level sensor unit and fuel pump (main). Refer to "AWD : Removal and Installation" Type 1 Removal And Installation.

3. REMOVE FUEL LEVEL SENSOR UNIT (SUB)

Remove the fuel level sensor unit (sub). Refer to "AWD : Removal and Installation" Type 1 Removal And Installation.
- GO TO 4.

4. CHECK FUEL LEVEL SENSOR UNIT (SUB)






Check the resistance between fuel level sensor unit (sub).





Is inspection result OK?
YES- INSPECTION END
NO- Replace fuel level sensor unit (sub). Refer to "AWD : Removal and Installation" Type 1 Removal And Installation.

FOR MEXICO


1. REMOVE FUEL LEVEL SENSOR UNIT (MAIN)

Remove the fuel level sensor unit (main). Refer to "Removal and Installation" Type 2 Removal And Installation.
- GO TO 2.

2. CHECK FUEL LEVEL SENSOR UNIT (MAIN)






Check the resistance between fuel level sensor unit and fuel pump.





Is inspection result OK?
YES- GO TO 3.
NO- Replace fuel level sensor unit and fuel pump (main). Refer to "Removal and Installation" Type 2 Removal And Installation.

3. REMOVE FUEL LEVEL SENSOR UNIT (SUB)

Remove the fuel level sensor unit (sub). Refer to "Removal and Installation" Type 2 Removal And Installation.
- GO TO 4.

4. CHECK FUEL LEVEL SENSOR UNIT (SUB)






Check the resistance between fuel level sensor unit (sub).





Is inspection result OK?
YES- INSPECTION END
NO- Replace fuel level sensor unit (sub). Refer to "Removal and Installation" Type 2 Removal And Installation.