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Entering On-Board Diagnostics: Notes

WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 1991 Plymouth Voyager, 1991 Plymouth Grand Voyager, 1991 Dodge Grand Caravan, 1991 Dodge Caravan, and 1991 Chrysler Town & Country. However, it is still accessible from the selected car via links, so may be relevant.
  1. Before entering on-board diagnostics, refer to PRETEST INSPECTION  . Turn ignition off. Attach appropriate cartridge to DRB-II. Connect DRB-II to CCD bus diagnostic connector. See Figure .
  2. Turn all accessories off. Turn ignition on. All character positions will glow and copyright information will appear on DRB-II screen for a few seconds. Display will then change to DRB-II menu.
  3. If DRB-II displays an error message or screen is blank, refer to VEHICLE COMMUNICATIONS charts. Always start at TEST 1A - GENERAL FAILURE MESSAGES  .
  4. Following DRB-II modes are accessible from DRB-II menu: VEHICLES TESTED, HOW TO USE, CONFIGURE and SELECT SYSTEM.
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