Interior Collation Does Not Function

Trouble causes:

Access key battery malfunction
Malfunction of keyless access Control Module power supply circuit
Malfunction of harness between keyless access Control Module and each interior antenna
Interior antenna malfunction

CAUTION:

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.
Before performing diagnosis, refer to "CAUTION" in "General Description". Ref. to KEYLESS ACCESS WITH PUSH BUTTON START (DIAGNOSTICS)>GENERAL DESCRIPTION>CAUTION .

CHECK ACCESS KEY.
Check the battery of the access key. Ref. to SECURITY AND LOCKS>ACCESS KEY>INSPECTION .

Is the check result OK?

Yes : Go to 2.

No : Replace the battery. Ref. to STARTING/CHARGING SYSTEMS (H4DOTC)>BATTERY .
CHECK POWER SUPPLY CIRCUIT.
1. Disconnect the keyless access Control Module connector.
2. Using a tester, measure the voltage between the keyless access Control Module connector and chassis ground.
  Connector and terminal
  
  (i75) No. 4 (+) - Chassis ground (-):
  
  (i75) No. 1 (+) - Chassis ground (-):
Is the voltage 9.5 - 16 V?

Yes : Go to 3.

No : Check the power supply circuit.
CHECK INTERIOR ANTENNA (FRONT).
1. Using the Subaru Select Monitor, check the following items in the [Keyless Access with Push Button Start Check] of [Keyless Access with Push Button Start]. Ref. to KEYLESS ACCESS WITH PUSH BUTTON START (DIAGNOSTICS)>KEYLESS ACCESS WITH PUSH BUTTON START CHECK .
  - [Fr internal transmitter - internal tuner]
2. Using a tester, check the output between keyless access Control Module connector terminals while performing [Keyless Access with Push Button Start].
  Connector and terminal
  
  (i241) No. 25 - (i241) No. 12:
Is a pulse output?

Yes : Go to 4.

No : Replace the keyless access Control Module. Ref. to SECURITY AND LOCKS>KEYLESS ACCESS CONTROL MODULE .
CHECK INTERIOR ANTENNA (CENTER).
1. Using the Subaru Select Monitor, check the following items in the [Keyless Access with Push Button Start Check] of [Keyless Access with Push Button Start]. Ref. to KEYLESS ACCESS WITH PUSH BUTTON START (DIAGNOSTICS)>KEYLESS ACCESS WITH PUSH BUTTON START CHECK .
  - [Rr internal transmitter - internal tuner]
2. Using a tester, check the output between keyless access Control Module connector terminals while performing [Keyless Access with Push Button Start].
  Connector and terminal
  
  (i241) No. 9 - (i241) No. 3:
Is a pulse output?

Yes : Go to 5.

No : Replace the keyless access Control Module. Ref. to SECURITY AND LOCKS>KEYLESS ACCESS CONTROL MODULE .
CHECK INTERIOR ANTENNA (REAR).
1. Using the Subaru Select Monitor, check the following items in the [Keyless Access with Push Button Start Check] of [Keyless Access with Push Button Start]. Ref. to KEYLESS ACCESS WITH PUSH BUTTON START (DIAGNOSTICS)>KEYLESS ACCESS WITH PUSH BUTTON START CHECK .
  - [Trunk-internal transmitter - trunk-internal tuner]
    or
  - [R gate internal transmitter - internal tuner]
2. Using a tester, check the output between keyless access Control Module connector terminals while performing [Keyless Access with Push Button Start].
  Connector and terminal
  
  (i241) No. 2 - (i241) No. 1:
Is a pulse output?

Yes : Go to 6.

No : Replace the keyless access Control Module. Ref. to SECURITY AND LOCKS>KEYLESS ACCESS CONTROL MODULE .
CHECK HARNESS (OPEN CIRCUIT).
1. Disconnect the front interior antenna connector and the keyless access Control Module connector.
2. Using a tester, check continuity between the front interior antenna connector and the keyless access Control Module connector.
  Connector and terminal
  
  (i241) No. 25 - (i71) No. 1:
  
  (i241) No. 12 - (i71) No. 3:
Is there continuity?

Yes : Go to 7.

No : Repair or replace the open circuit of harness.
CHECK HARNESS (OPEN CIRCUIT).
1. Disconnect the center interior antenna connector and the keyless access Control Module connector.
2. Using a tester, check continuity between the center interior antenna connector and the keyless access Control Module connector.
  Connector and terminal
  
  (i241) No. 9 - (R298) No. 1:
  
  (i241) No. 3 - (R298) No. 3:
Is there continuity?

Yes : Go to 8.

No : Repair or replace the open circuit of harness.
CHECK HARNESS (OPEN CIRCUIT).
1. Disconnect the rear interior antenna connector and the keyless access Control Module connector.
2. Using a tester, check continuity between the rear interior antenna connector and the keyless access Control Module connector.
  Connector and terminal
  
  (i241) No. 2 - (R297) No. 1:
  
  (i241) No. 1 - (R297) No. 3:
Is there continuity?

Yes : Go to 9.

No : Repair or replace the open circuit of harness.
CHECK ANTENNA.
Replace the front interior antenna with a new or properly functioning part.

Does it operate properly?

Yes : Replace the front interior antenna. Ref. to SECURITY AND LOCKS>KEYLESS ACCESS INDOOR ANTENNA>REMOVAL .

No : Go to 10.
CHECK ANTENNA.
Replace the center interior antenna with a new or properly functioning part.

Does it operate properly?

Yes : Replace the center interior antenna. Ref. to SECURITY AND LOCKS>KEYLESS ACCESS INDOOR ANTENNA>REMOVAL .

No : Go to 11.
CHECK ANTENNA.
Replace the rear interior antenna with a new or properly functioning part.

Does it operate properly?

Yes : Replace the rear interior antenna. Ref. to SECURITY AND LOCKS>KEYLESS ACCESS INDOOR ANTENNA>REMOVAL .

No : Go to 12.
CHECK KEYLESS ACCESS SYSTEM CHECK.
1. Using the Subaru Select Monitor, check the following items in the [Keyless Access with Push Button Start Check] of [Keyless Access with Push Button Start]. Ref. to KEYLESS ACCESS WITH PUSH BUTTON START (DIAGNOSTICS)>KEYLESS ACCESS WITH PUSH BUTTON START CHECK .
  - [Fr internal transmitter - internal tuner]
2. Hold the access key 1 m or more away from the center console, then come closer to within 0.8 m.
Does the buzzer sound?

Yes : Go to 13.

No : Replace the keyless access Control Module. Ref. to SECURITY AND LOCKS>KEYLESS ACCESS CONTROL MODULE .
CHECK KEYLESS ACCESS SYSTEM CHECK.
1. Using the Subaru Select Monitor, check the following items in the [Keyless Access with Push Button Start Check] of [Keyless Access with Push Button Start]. Ref. to KEYLESS ACCESS WITH PUSH BUTTON START (DIAGNOSTICS)>KEYLESS ACCESS WITH PUSH BUTTON START CHECK .
  - [Rr internal transmitter - internal tuner]
2. Hold the access key 1 m or more away from the center of the second-row seats, then come closer to within 0.8 m.
Does the buzzer sound?

Yes : Go to 14.

No : Replace the keyless access Control Module. Ref. to SECURITY AND LOCKS>KEYLESS ACCESS CONTROL MODULE .
CHECK KEYLESS ACCESS SYSTEM CHECK.
1. Using the Subaru Select Monitor, check the following items in the [Keyless Access with Push Button Start Check] of [Keyless Access with Push Button Start]. Ref. to KEYLESS ACCESS WITH PUSH BUTTON START (DIAGNOSTICS)>KEYLESS ACCESS WITH PUSH BUTTON START CHECK .
  - [Trunk-internal transmitter - trunk-internal tuner]
    or
  - [R gate internal transmitter - internal tuner]
2. Hold the access key 1 m or more away from the back of the rear seat, then come closer to within 0.8 m.
Does the 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 .