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Test 4A - Traveler Button Problem

NOTE: For connector terminal identification, see CONNECTOR IDENTIFICATION. For wiring diagram, see WIRING DIAGRAMS at the end of this article.
  1. Using DRB-II, read traveler switch status. If DRB-II displays CIRCUIT CLOSED for the STEP or US/M buttons, replace traveler module. Perform VERIFICATION PROCEDURE VER-1.
  2. If DRB-II does not display CIRCUIT CLOSED for the STEP or US/M buttons, press STEP button on traveler module. If DRB-II displays CIRCUIT CLOSED, go to next step. If DRB-II does not display CIRCUIT CLOSED, replace traveler module. Perform VERIFICATION PROCEDURE VER-1.
  3. Press US/M button on traveler module. If DRB-II displays CIRCUIT CLOSED, system is operating properly at this time. Perform VERIFICATION PROCEDURE VER-1. If DRB-II does not display CIRCUIT CLOSED, replace traveler module. Perform VERIFICATION PROCEDURE VER-1.
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