Access Key Lockout Protection Function In The Trunk Does Not Operate

CAUTION:

Inspect LAN system according to the basic diagnostic procedure, and make sure that there is no fault.
Check that the keyless access function is not stopped.
When the access key or keyless access CONTROL MODULE is replaced, registration of the immobilizer is required. For the relevant procedures, refer to the "REGISTRATION MANUAL FOR IMMOBILIZER" provided as a separate volume. Contact an Authorized Subaru Dealership.

CHECK TRUNK OPENER BUTTON .
Check that the trunk opens with the driver's seat trunk opener button.

Does it open normally?

Yes: Go to 2

No: Check the door lock circuit. Ref. to SECURITY AND LOCKS>Door Lock Control System>INSPECTION
CHECK KEYLESS OPERATION .
Check that the trunk opens when the trunk opener button of the access key is operated.

Does it open normally?

Yes: Go to 7

No: Go to 3
CHECK TRUNK UNLOCK OPERATION .
1. Using the Subaru Select Monitor, select the function check «R gate/trunk UNLK output» under «Body Control». Ref. to BODY CONTROL SYSTEM (DIAGNOSTICS)>Function Check
2. Check that the trunk opens when the R gate/trunk UNLK signal is output.
Does it open normally?

Yes: Go to 7

No: Go to 4
CHECK WIRING HARNESS (OPEN) .
1. Disconnect the body integrated unit connector and trunk lid lock actuator connector.
2. Check the continuity between body integrated unit connector and trunk lid lock actuator connector.
  Connector & terminal
  
  (i171) No. 7 - (R186) No. 1:
Is there continuity?

Yes: Go to 5

No: Repair or replace the open circuit of harness.
CHECK WIRING HARNESS (OPEN) .
Check the continuity between the trunk lid lock actuator connector and chassis ground.

Connector & terminal

(R186) No. 2 - Chassis ground:

Is there continuity?

Yes: Go to 6

No: Repair or replace the open circuit of harness.
CHECK TRUNK LID LOCK ACTUATOR .
Check the trunk lid lock actuator. Ref. to SECURITY AND LOCKS>Trunk Lid Latch and Actuator Assembly

Is the check result OK?

Yes: Replace the body integrated unit. Ref. to SECURITY AND LOCKS>Body Integrated Unit

No: Replace the trunk lid latch & actuator assembly. Ref. to SECURITY AND LOCKS>Trunk Lid Latch and Actuator Assembly
CHECK ACCESS KEY .
1. Prepare all access keys registered to the vehicle.
2. Check that the trunk opens with each access key.
Does it open normally?

Yes: Go to 8

No: Replace the access key. Ref. to SECURITY AND LOCKS>Access Key>REPLACEMENT
CHECK WIRING HARNESS (OPEN) .
1. Disconnect the interior rear antenna connector and the keyless access CONTROL MODULE connector.
2. Using a tester, check continuity between the interior rear antenna connector and keyless access CONTROL MODULE connector.
  Connector & terminal
  
  (R297) No. 1 - (B573) No. 9:
  
  (R297) No. 3 - (B573) No. 8:
Is there continuity?

Yes: Go to 9

No: Repair or replace the open circuit of harness.
CHECK PASSENGER ROOM REAR ANTENNA .
Replace the passenger room rear antenna with a new or properly functioning part. Ref. to SECURITY AND LOCKS>Keyless Access Indoor Antenna>REMOVAL

Does it operate properly?

Yes: Replace the passenger room rear antenna. Ref. to SECURITY AND LOCKS>Keyless Access Indoor Antenna>REMOVAL

No: Go to 10
CHECK RECEIVER .
Replace the receiver with a new or properly functioning part. Ref. to SECURITY AND LOCKS>Receiver>REMOVAL

Does it operate properly?

Yes: Replace the receiver. Ref. to SECURITY AND LOCKS>Receiver>REMOVAL

No: Go to 11
CHECK WIRING HARNESS (OPEN) .
1. Disconnect the receiver connector and the keyless access CONTROL MODULE connector.
2. Using a tester, check continuity between the receiver connector and keyless access CONTROL MODULE connector.
  Connector & terminal
  
  (R296) No. 4 - (B573) No. 5:
  
  (R296) No. 5 - (B573) No. 17:
  
  (R296) No. 2 - (B573) No. 19:
Is there continuity?

Yes: Go to 12

No: Repair or replace the open circuit of harness.
CHECK KEYLESS ACCESS SYSTEM CHECK .
1. Using the Subaru Select Monitor, select the system check «Trunk internal transmitter + interior tuner» under «Keyless Access with Push Button Start». Ref. to KEYLESS ACCESS WITH PUSH BUTTON START SYSTEM (DIAGNOSTICS)>Keyless Access System Check
2. Hold the access key 1 m or more away from the center of inside the trunk, then come closer to within 0.8 m.
Does the outside buzzer sound?

Yes: The circuit has returned to a normal condition at this time. Reproduce the failure, and then perform the diagnosis again.

NOTE: In this case, temporary poor contact of connector, temporary open or short circuit of harness may be the cause.

No: Replace the keyless access CONTROL MODULE. Ref. to SECURITY AND LOCKS>Keyless Access CONTROL MODULE >REMOVAL