Diagnosis Procedure - FWD Models

1. Ignition switch OFF.
2. Check combination meter and fuel level sensor unit and fuel pump (fuel level sensor) 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.

1. Disconnect combination meter harness connector and fuel level sensor unit and fuel pump (fuel level sensor) harness connector.
2. Check continuity between combination meter harness connector and fuel level sensor unit and fuel pump (fuel level sensor) harness connector.

   Fuel level sensor unit and fuel pump (fuel level sensor)		Combination meter		Continuity
   Connector	Terminal	Connector	Terminal
   B42	2	M24	3	Yes

3. Check continuity between fuel level sensor unit and fuel pump (fuel level sensor) harness connector and ground.

   Fuel level sensor unit and fuel pump (fuel level sensor)		Ground	Continuity
   Connector	Terminal
   B42	2		No

Is the inspection result normal?

YES

GO TO 3.

NO

Repair or replace harness or connectors.

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

   Fuel level sensor unit and fuel pump (fuel level sensor)		Combination meter		Continuity
   Connector	Terminal	Connector	Terminal
   B42	3	M24	4	Yes

2. Check continuity between fuel level sensor unit and fuel pump (fuel level sensor) harness connector and ground.

   Fuel level sensor unit and fuel pump (fuel level sensor)		Ground	Continuity
   Connector	Terminal
   B42	3		No

Is the inspection result normal?

YES

GO TO 4.

NO

Repair or replace harness or connectors.

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. Refer to FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY : Removal & Installation .