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Home >> Subaru >> 2017 >> Forester 2.0XT Touring >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Anti-Theft System - Security And Locks >> Keyless Entry System >> Inspection >> Check Keyless Buzzer

Check Keyless Buzzer

  1. CHECK BODY INTEGRATED UNIT SETTING  .

    Display the [Answer-back buzzer setup] data using Subaru Select Monitor.

    NOTE: For detailed operation procedures, refer to "Application help".

    Is the setting ON?

    1. Yes: Go to 2  .
    2. No: Turn the setting to ON.
  2. CHECK BODY INTEGRATED UNIT  .

    Select and perform the [Keyless Buzzer Output] using Subaru Select Monitor.

    Does the keyless buzzer sound?

    1. Yes: Check the keyless control module.
    2. No: Go to 3  .
  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?

    1. Yes: Go to 4  .
    2. No: Repair or replace the harness.
  4. 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?

    1. Yes: Go to 5  .
    2. No: Repair or replace the harness.
  5. 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?

    1. Yes: Replace the keyless buzzer.
    2. No: Replace the body integrated unit. Ref. to SECURITY AND LOCKS>Body Integrated Unit .
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