DTC P0464: Fuel Level Sensor Circuit Intermittent

DTC DETECTING CONDITION:

Two consecutive driving cycles with fault
GENERAL DESCRIPTION < Ref. to DTC P0464 FUEL LEVEL SENSOR CIRCUIT INTERMITTENT , Diagnostic Trouble Code (DTC) Detecting Criteria. >

CAUTION: After repair or replacement of faulty parts, conduct Clear Memory Mode < Ref. to , OPERATION , Clear Memory Mode. > and Inspection Mode < Ref. to , PROCEDURE , Inspection Mode. >.

WIRING DIAGRAM:

Fig 1: DTC P0464 Fuel Level Sensor - Wiring Diagram And Connector Terminal

Courtesy of SUBARU OF AMERICA, INC.

DIAGNOSTIC PROCEDURE DTC P0464

Step	Check	Yes	No
1 CHECK ANY OTHER DTC ON DISPLAY.	Is any other DTC displayed?	Inspect DTC P0462 or P0463 using "List of Diagnostic Trouble Code (DTC)". < Ref. to , LIST OF DIAGNOSTIC TROUBLE CODE (DTC) . >	Go to step 2 .
2 CHECK FUEL LEVEL SENSOR. Remove the fuel pump assembly. < Ref. to FUEL PUMP . > While moving the fuel level sensor float up and down, make sure that the resistance between fuel level sensor terminals changes smoothly. Terminals No. 3 - No. 2:	Does the resistance change smoothly?	Go to step 3 .	Replace the fuel level sensor. < Ref. to FUEL LEVEL SENSOR . >
3 CHECK FUEL SUB LEVEL SENSOR. Remove the fuel sub level sensor. < Ref. to FUEL SUB LEVEL SENSOR . > While moving the fuel sub level sensor float up and down, make sure that the resistance between fuel level sensor terminals changes smoothly. Terminals No. 1 - No. 2:	Does the resistance change smoothly?	Repair poor contact in ECM, combination meter and coupling connectors.	Replace the fuel sub level sensor. < Ref. to FUEL SUB LEVEL SENSOR . >