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Home >> Plymouth >> 1990 >> Voyager Base, 3.0 3 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - Body Control Computer >> Diagnostic Procedure >> Entering On-Board Diagnostics >> SELECT SYSTEM Mode
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SELECT SYSTEM Mode

  1. This mode enables the technician to select system to be diagnosed. At DRB-II menu, press "4" (SELECT SYSTEM) key. Press ENTER key. DRB-II will display SELECT SYSTEM menu.
  2. At SELECT SYSTEM menu, press "3" (BODY) key. Press ENTER key. DRB-II should display BUS TEST IN PROGRESS and BUS OPERATIONAL. After a few seconds, display should change to BODY STYLE menu.
  3. If a bus failure message appears during BUS TEST IN PROGRESS, proceed to SELF-DIAGNOSTIC TESTS. Always start at TEST 1A - BLANK DRB-II MESSAGE SCREEN. At BODY STYLE menu, select appropriate body style for vehicle being worked on. DRB-II will display SELECT MODULE MENU.