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Entering On-Board Diagnostics: Notes

  1. Before entering on-board diagnostics, refer to PRETEST INSPECTION  . Turn ignition off. Attach appropriate 1994 cartridge to DRB. Connect DRB to data link connector. See Figure .
  2. Turn all accessories off. Turn ignition on. All character positions will glow and copyright information will appear on DRB screen for a few seconds. Display will then change to DRB menu.
  3. If DRB displays an error message or if screen is blank, refer to VEHICLE COMMUNICATIONS (ALWAYS start at TEST 1A). Testing of NO RESPONSE messages may be found in appropriate BODY CONTROL MODULE TESTS.
  4. The following DRB modes can be accessed from DRB menu: VEHICLES TESTED, HOW TO USE, CONFIGURE and SELECT SYSTEM.
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