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Keyless Door Lock Buzzer Does Not Chirp

  1. Operate door lock and unlock function with remote transmitter. If remote transmitter functions correctly, go to next step. If remote transmitter does not function correctly, go to BASIC FUNCTION TEST .
  2. Test buzzer operation. See KEYLESS DOOR LOCK BUZZER  under COMPONENT TESTS. If buzzer is okay, go to next step. If buzzer is not okay, replace buzzer.
  3. Perform LOCK/UNLOCK operation with keyless remote transmitter while measuring voltage between ground and terminal No. 4 (Pink/Green wire) at back door ECU harness connector. If battery voltage exists when operating lock, unlock and luggage door unlock functions with remote transmitter, check continuity between terminal No. 4 (Pink/Green wire) at back door ECU harness connector and terminal No. 1 (Pink/Black wire) at buzzer. Also check continuity between terminal No. 5 (Pink/Black wire) at back door ECU harness connector and terminal No. 2 (Pink/Green wire) at buzzer. Repair wiring as necessary. If wiring is okay, replace back door ECU. See BACK DOOR ECU  under REMOVAL & INSTALLATION.
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