Diagnosis Procedure

Regarding Wiring Diagram information, refer to WIRING DIAGRAM .

1. CHECK FUEL LEVEL SENSOR UNIT AND FUEL PUMP (FUEL LEVEL SENSOR) (MAIN) CIRCUIT
   
   
   1. Turn ignition switch OFF.
   2. Disconnect combination meter connector and fuel level sensor unit and fuel pump (fuel level sensor) (main) connector.
   3. Check continuity between combination meter harness connector and fuel level sensor unit and fuel pump (fuel level sensor) (main) harness connector.

      Combination meter		Fuel level sensor unit and fuel pump (fuel level sensor) (main)		Continuity
      Connector	Terminal	Connector	Terminal
      M77	51	B103	5	Yes

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

      Combination meter		Ground	Continuity
      Connector	Terminal
      M77	51		No

   Is the inspection result normal?

   YES 

   GO TO STEP 2. 

   NO 

   Repair harness or connector.

2. CHECK FUEL LEVEL SENSOR UNIT AND FUEL PUMP (FUEL LEVEL SENSOR) (MAIN) GROUND CIRCUIT
   
   

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

   Fuel level sensor unit and fuel pump (fuel level sensor) (main)		Combination meter		Continuity
   Connector	Terminal	Connector	Terminal
   B103	2	M77	44	Yes

   Is the inspection result normal?

   YES 

   Replace combination meter. Refer to REMOVAL AND INSTALLATION .

   NO 

   Repair harness or connector.