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Wireless Door Lock Buzzer Circuit

NOTE: If LEXUS scan tool is available, start test from step  1. If this scan tool is not available, start test from step  2.
  1. Using scan tool, operate wireless door lock buzzer in ACTIVE TEST. If wireless door lock buzzer does not operate, go to next step. If wireless door lock buzzer operates, go to next test listed in appropriate SYMPTOM DIAGNOSIS table under TROUBLE SHOOTING .
  2. Check wireless door lock buzzer. See WIRELESS DOOR LOCK BUZZER  under COMPONENT TESTS. Replace wireless door lock buzzer as necessary. Retest system operation. If buzzer is okay, go to next step.
  3. Check circuits for faults between wireless door lock buzzer and body control ECU No. 1. See WIRING DIAGRAMS . Repair or replace as necessary. If circuits are okay, go to next test listed in appropriate SYMPTOM DIAGNOSIS table under TROUBLE SHOOTING .
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