Remote Openers: Inspection: Trouble Symptom

Electric fuel unlock system does not operate.

Wiring diagram: 

Door lock control system Ref. to WIRING DIAGRAM .

Courtesy of SUBARU OF AMERICA, INC.

1. CHECK DOOR LOCK/UNLOCK OPERATION. 
   1. Turn the ignition switch to OFF.
   2. Using the keyless transmitter or access key (touch sensor), check that door lock/unlock is possible.

   Does it lock/unlock normally?

   Yes:  Go to  2

   No:  Check the door lock actuator and circuit.

2. CHECK ELECTRIC FUEL UNLOCK OPERATION. 
   1. Turn the ignition switch to ON.
   2. Lock all doors using the door lock switch.
   3. Turn the ignition switch to OFF.

   Does the electric fuel unlock operate when turning the ignition switch to OFF?

   Yes:  Electric fuel unlock is normal.

   No:  Go to  3

3. CHECK BODY INTEGRATED UNIT. 

   Using Subaru Select Monitor, display data of [IGN voltage] in [Data monitor] of [Body Control]. BODY CONTROL(DIAGNOSTICS)>DATA MONITOR .

   Does the voltage switch between OFF (0 V) ←→ ON (9 V or more) when the ignition switch is operated?

   Yes:  Go to  4

   No:  Check the ignition switch circuit.

4. CHECK HARNESS. 
   1. Turn the ignition switch to OFF.
   2. Disconnect the connector of the body integrated unit and fuel lid lock actuator.
   3. Check the harness between the body integrated unit and fuel lid lock actuator.

   Connector & terminal 

   (i81) No. 7 - (R134) No. 1:

   (i4) No. 4 - (R134) No. 2:

   Is the resistance less than 10 Ω?

   Yes:  Go to  5

   No:  Repair or replace the harness.

5. CHECK FUEL LID LOCK ACTUATOR. 

   Apply battery voltage between fuel lid lock actuator connector terminals.

   Connector & terminal 

   (R134) No. 1 (+) - (R134) No. 2 (-):

   Does it operate properly?

   Yes:  Replace the body integrated unit.

   No:  Replace the fuel lid lock actuator.