Meter, Warning Lamp & Indicator (DTC/Circuit Diagnosis)
- CHECK HARNESS CONNECTOR
- Turn ignition switch OFF.
- Check combination meter and fuel level sensor unit terminals (meter-side and harness-side) for poor connection.
Is the inspection result normal?
YES
GO TO 2.
NO
Repair or replace terminals or connectors.
- CHECK FUEL LEVEL SENSOR UNIT CIRCUIT
- Disconnect combination meter connector and fuel level sensor unit connector.
- Check continuity between combination meter harness connector and fuel level sensor unit and fuel pump harness connector.
Connector
Terminal
Connector
Terminal
Continuity
C5 (with VQ40DE)
C37 (with VK56VD)
2
M24
12
Yes
- Check continuity between fuel level sensor unit and fuel pump harness connector and ground.
Connector
Terminal
Ground
Continuity
C5 (with VQ40DE)
C37 (with VK56VD)
2
No
Is the inspection result normal?
YES
GO TO 3.
NO
Repair harness or connector.
- CHECK FUEL LEVEL SENSOR UNIT GROUND CIRCUIT
- Check continuity between combination meter harness connector and fuel level sensor unit and fuel pump harness connector.
Connector
Terminal
Connector
Terminal
Continuity
C5 (with VQ40DE)
C37 (with VK56VD)
5
M24
24
Yes
- Check continuity between fuel level sensor unit and fuel pump harness connector and ground.
Connector
Terminal
Ground
Continuity
C5 (with VQ40DE)
C37 (with VK56VD)
5
No
Is the inspection result normal?
YES
GO TO 4.
NO
Repair harness or connector.
- Check continuity between combination meter harness connector and fuel level sensor unit and fuel pump harness connector.
- CHECK INSTALLATION CONDITION
Check fuel level sensor unit installation, and check whether the float arm interferes or binds with any of the internal components in the fuel tank.
Is the inspection result normal?
YES
Inspection End.
NO
Install the fuel level sensor unit properly.