Cannot Lock With Keyless Access From The Driver's Door

CAUTION:

Check that there are no other registered access keys inside the vehicle.
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 CM 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 DOOR LOCK SWITCH.
Check that the lock/unlock operates with the driver's door lock switch.

Does it lock/unlock normally?
- Yes : Go to 2.
- No : Check the door lock circuit. Ref. to SECURITY AND LOCKS>Door Lock Control System>INSPECTION>SYMPTOM CHART .
CHECK DATA MONITOR.
1. Using the Subaru Select Monitor, display the data monitor [Driver's seat lock status SW input] of Body Control. Ref. to BODY CONTROL(DIAGNOSTICS)>Data Monitor .
2. Read the data when locking/unlocking the driver's side lock actuator.
Does the data change from ON/OFF?
- Yes : Go to 3. Keyless Access & Start Link 1 Memorized
- No : Check the door lock switch circuit.
CHECK DATA MONITOR.
1. Using the Subaru Select Monitor, display the data monitor [Driver's lock touch sensor SW] of [Keyless Access with Push Button Start]. Ref. to KEYLESS ACCESS WITH PUSH BUTTON START (DIAGNOSTICS)>Data Monitor .
2. Read the data when operating the touch sensor (lock) of the door outer handle.
Does the data change from ON/OFF according to the sensor operation?
- Yes : Replace the keyless access CM. Ref. to SECURITY AND LOCKS>Keyless Access CM>REMOVAL .
- No : Go to 4.
CHECK HARNESS (OPEN CIRCUIT).
1. Disconnect the keyless access CM connector.
2. Disconnect the front outer handle connector.
3. Using a tester, measure the resistance between the keyless access CM connector and front outer handle connector.
  Connector & terminal
  
  (B574) No. 20 - (D66) No. 1:
Is the resistance less than 1 Ω?
- Yes : Go to 5.
- No : Repair or replace the open circuit of harness.
CHECK HARNESS (GROUND SHORT CIRCUIT).
Using a tester, measure the resistance between the keyless access CM connector and chassis ground.

Connector & terminal

(B574) No. 20 - Chassis ground:

(D66) No. 1 - Chassis ground:

Is the resistance 10 kΩ or more?
- Yes : Go to 6.
- No : Repair or replace the short circuit of the harness.
REPLACE FRONT DOOR OUTER HANDLE.
Replace the driver's side front outer handle with the passenger's side front outer handle. Ref. to SECURITY AND LOCKS>Front Outer Handle>REMOVAL .

Does it operate properly?
- Yes : Replace the driver's front outer handle. Ref. to SECURITY AND LOCKS>Front Outer Handle>REMOVAL .
- No : Replace the keyless access CM. Ref. to SECURITY AND LOCKS>Keyless Access CM>REMOVAL .