Check Keyless Buzzer

CHECK BODY INTEGRATED UNIT SETTING .
Display the data of «Answer-back buzzer setup» using Subaru Select Monitor.

NOTE: For detailed procedures, refer to "PC application help for Subaru Select Monitor".

Is the setting ON?

Yes: Go to 2.

No: Turn the setting to ON.
CHECK BODY INTEGRATED UNIT .
Select and perform the [Keyless Buzzer Output] using Subaru Select Monitor.

Does the keyless buzzer sound?

Yes: Check the keyless control module.

No: Go to 3.
CHECK KEYLESS BUZZER CIRCUIT .
1. Turn the ignition switch to OFF.
2. Disconnect the connectors of the body integrated unit and keyless buzzer.
3. Check the harness between body integrated unit and keyless buzzer.
  Connector & terminal
  
  (B280) No. 20 - (B164) No. 1:
Is harness normal?

Yes: Go to 4.

No: Repair or replace the harness.
CHECK KEYLESS BUZZER CIRCUIT .
Measure the resistance between the keyless buzzer connector and chassis ground.

Connector & terminal

(B164) No. 2 - Chassis ground:

Is the resistance less than 10 Ω?

Yes: Go to 5.

No: Repair or replace the harness.
CHECK BODY INTEGRATED UNIT .
1. Select and perform the [Keyless Buzzer Output] using Subaru Select Monitor.
2. Measure the voltage between the body integrated unit connector and chassis ground.
  Connector & terminal
  
  (B280) No. 20 (+) - Chassis ground (-):
Is the waveform with frequency 2 kHz and voltage 9 V or more being output?

Yes: Replace the keyless buzzer.

No: Replace the body integrated unit. Ref. to SECURITY AND LOCKS > Body Integrated Unit .