Diagnosis Procedure
- CHECK FUEL LEVEL SENSOR CIRCUIT
- Turn ignition switch OFF.
- Disconnect combination meter connector and fuel level sensor unit (sub) connector.
- Check continuity between combination meter harness connector and fuel level sensor unit (sub) harness connector.
Combination meter
Fuel level sensor unit (sub)
Continuity
Connector
Terminal
Connector
Terminal
M53
34
B77
2
Existed
- Check continuity between combination meter harness connector and ground.
Combination meter
Ground
Continuity
Connector
Terminal
M53
34
Not existed
Is the inspection result normal?
YES
GO TO 2.
NO
Repair harness or connector.
- CHECK FUEL LEVEL SENSOR UNIT (MAIN-SUB) CIRCUIT
- Disconnect fuel level sensor unit and fuel pump (main) connector.
- Check for continuity between the fuel level sensor unit (sub) harness connector and the fuel level sensor unit and fuel pump (main) harness connector.
Fuel level sensor unit (sub)
Fuel level sensor unit and fuel pump (main)
Continuity
Connector
Terminal
Connector
Terminal
B77
3
B205
2
Existed
- Check for continuity between the fuel level sensor unit (sub) harness connector and the ground.
Fuel level sensor unit (sub)
Ground
Continuity
Connector
Terminal
B77
3
Not existed
Is the inspection result normal?
YES
GO TO 3.
NO
Repair harness or connector.
- CHECK FUEL LEVEL SENSOR GROUND CIRCUIT
- Check continuity between fuel level sensor unit and fuel pump (main) harness connector and combination meter harness connector.
Fuel level sensor unit and fuel pump (main)
Combination meter
Continuity
Connector
Terminal
Connector
Terminal
B205
3
M53
24
Existed
- Check for continuity between the fuel level sensor unit and fuel pump (main) harness connector and the ground.
Fuel level sensor unit and fuel pump (main)
Ground
Continuity
Connector
Terminal
B205
3
Not existed
Is the inspection result normal?
YES
Replace combination meter. Refer to Removal and Installation .
NO
Repair harness or connector.
- Check continuity between fuel level sensor unit and fuel pump (main) harness connector and combination meter harness connector.