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Repairing OTIS Switches

NOTE: Perform OTIS TEST 1A  before proceeding with this test. For connector terminal identification and wiring diagrams, see BODY CONTROL COMPUTER - INTRODUCTION article. Perform VERIFICATION TEST: VER-2A  after each repair. Drive vehicle at least 3 miles (greater than 25 MPH) to update OTIS and perform VERIFICATION TEST: VER-2A  after each repair.
CAUTION: Always turn ignition switch to OFF position prior to disconnecting any module connector.
  1. Turn ignition off and leave key in ignition. Open driver's door. If chime sounds, go to next step. If chime does not sound, go to CHIME TEST 5A .
  2. Turn ignition on and close driver's door. Press each button on OTIS unit and listen for audible beep at Body Control Module (BCM). If beep was heard each time a button is pressed, OTIS is currently operating correctly. If beep was not heard each time a button was pressed, replace OTIS unit.
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