Entering On-Board Diagnostics: Notes

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 and Figure .
2. Turn all accessories off. Turn ignition on. All character positions will illuminate 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 MESSAGE FAILURES.
4. The following DRB-II modes can be accessed from DRB-II menu: VEHICLES TESTED, HOW TO USE, CONFIGURE and SELECT SYSTEM.