Check Fuel Level Sensor

DIAGNOSTIC PROCEDURE CHART

Step	Check	Yes	No
1 CHECK COMBINATION METER. Drain fuel. Check the indication status of the fuel gauge in the combination meter.	Does the fuel gauge needle or segment display indicate EMPTY and is the low fuel warning light blinking?	Go to step 4 .	Go to step 2 .
2 CHECK COMBINATION METER. Perform the self-diagnosis of combination meter. < Ref. to SELF-DIAGNOSIS , INSPECTION, Combination Meter System. >	Is it operating normally?	Go to step 3 .	Replace the meter case assembly.
3 CHECK DIAGNOSTIC TROUBLE CODE (DTC). Prepare the Subaru Select Monitor kit. Turn the ignition switch to ON (engine OFF) and run the "PC application for Subaru Select Monitor". On << System Selection Menu >> display, select {Integ. unit mode}. Select the {Diagnostic Code(s) Display}.	Is DTC being displayed?	Perform the diagnosis according to DTC. < Ref. to LIST , List of Diagnostic Trouble Code (DTC). >	Go to step 4 .
4 CHECK HARNESS. Disconnect the body integrated unit connector. Measure the resistance between body integrated unit connector and chassis ground. Connector & terminal (B281) No. 7 - Chassis ground:	Is the resistance 2 - 96 Ω?	Go to step 5 . If the step 1 is "Yes", Go to step 9 .	Repair or replace the harness.
5 CHECK COMMUNICATION BETWEEN BODY INTEGRATED UNIT AND METERS. Remove the fuel sub level sensor. Non-turbo model: < Ref. to REMOVAL , Fuel Sub Level Sensor. > Turbo model: < Ref. to REMOVAL , Fuel Sub Level Sensor. > Short the fuel sub level sensor connector terminal to the chassis ground with approx. 100 O resistance. Turn the ignition switch to ON. Terminals (R59) No. 1 - Chassis ground:	Does the meter needle or segment display indicate EMPTY?	Go to step 7 .	Go to step 6 .
6 CHECK BODY INTEGRATED UNIT. Retain the condition in step 5. On {Integ. unit mode}, select {Fuel level resistance} using the Subaru Select Monitor.	Is the resistance displayed as approx. 100Ω?	Go to step 11 .	Replace the body integrated unit. < Ref. to BODY INTEGRATED UNIT . >
7 CHECK COMMUNICATION BETWEEN BODY INTEGRATED UNIT AND COMBINATION METERS. Remove the fuel sub level sensor. Non-turbo model: < Ref. to REMOVAL , Fuel Sub Level Sensor. > Turbo model: < Ref. to REMOVAL , Fuel Sub Level Sensor. > Short the fuel sub level sensor connector terminal to the chassis ground with approx. 2 Ω to 6 Ω resistance. Turn the ignition switch to ON. Terminals (R59) No. 1 - Chassis ground:	Does the meter needle or segment display indicate FULL?	Go to step 9 .	Go to step 8 .
8 CHECK BODY INTEGRATED UNIT. Retain the condition in step 7. On {Integ. unit mode}, select {Fuel level resistance} using the Subaru Select Monitor.	Is the resistance 2 - 6 Ω?	Go to step 11 .	Replace the body integrated unit. < Ref. to BODY INTEGRATED UNIT . >
9 CHECK FUEL SUB LEVEL SENSOR. Remove the fuel sub level sensor. Non-turbo model: < Ref. to REMOVAL , Fuel Sub Level Sensor. > Turbo model: < Ref. to REMOVAL , Fuel Sub Level Sensor. > Measure the resistance between the fuel sub level sensor connector terminals when the float is in FULL and EMPTY position. Connector & terminal (R59) No. 1 - No. 2:	Is the resistance 1.0 to 2.5 Ω (FULL) and 61 to 63 Ω (EMPTY)?	Go to step 10 .	Replace the fuel sub level sensor.
10 CHECK FUEL LEVEL SENSOR. Remove the fuel level sensor. Non-turbo model: < Ref. to REMOVAL , Fuel Level Sensor. > Turbo model: < Ref. to REMOVAL , Fuel Level Sensor. > Measure the resistance between the fuel level sensor connector terminals when the float is in FULL and EMPTY position. Connector & terminal (R58) No. 1 - No. 4:	Is the resistance 1.0 to 2.5 Ω (FULL, non-turbo model), 1.0 to 3.0 Ω (FULL, turbo model), and 31 to 33 Ω (EMPTY)?	Check the connection status of the harness and connector that may have a temporary poor contact.	Replace the fuel level sensor.
11 CHECK COMBINATION METER OPERATION. Remove the combination meter. Attach the combination meter to another vehicle on which the fuel gauge operates normally to check its operation.	Is the fuel gauge normal?	Replace the body integrated unit. < Ref. to BODY INTEGRATED UNIT . >	Replace the meter case assembly.