Diagnosis Procedure

P0460-1A, P0460-1B 

1. CHECK POWER SUPPLY VOLTAGE OF BCM 

   Check power supply and ground circuit of BCM. Refer to Diagnosis Procedure .

   Is the inspection result normal?

   YES

   GO TO 2.

   NO

   Repair or replace the malfunctioning parts.

2. CHECK FUEL GAUGE 
   1. Turn the ignition switch OFF.
   2. Fully fill the fuel tank.
   3. Disconnect the fuel level sensor unit and fuel pump harness connector.
   4. Check the resistance between fuel level sensor unit and fuel pump.

      Actual value

      : 48 Ohm

   Is the inspection result normal?

   YES

   GO TO 3.

   NO

   Replace fuel level sensor unit and fuel pump or fuel tank assembly. Refer to Removal and Installation .

3. CHECCK FUEL LEVEL SENSOR UNIT AND FUEL PUMP CIRCUIT 
   1. Disconnect the BCM harness connector.
   2. Check the continuity between fuel level sensor unit and fuel pump harness connector and BCM harness connector.
      2WD models
      
      

      Fuel level sensor unit and fuel pump		BCM		Continuity
      Connector	Terminal	Connector	Terminal
      M370	5	M28	91	Existed
      	6		92

      AWD models
      
      

      Fuel level sensor unit and fuel pump		BCM		Continuity
      Connector	Terminal	Connector	Terminal
      M370	5	M28	91	Existed
      	6		93
      	7		92

   3. Check the continuity between fuel level sensor unit and fuel pump harness connector and ground.
      2WD models
      
      

      Fuel level sensor unit and fuel pump		--	Continuity
      Connector	Terminal
      M370	6	Ground	Not existed

      AWD models
      
      

      Fuel level sensor unit and fuel pump		--	Continuity
      Connector	Terminal
      M370	6	Ground	Not existed
      	7

   Is the inspection result normal?

   YES

   Replace fuel level sensor unit and fuel pump or fuel tank assembly. Refer to Removal and Installation .

   NO

   Repair harness or connector.