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Entering On-Board Diagnostics: Notes

WARNING: This page is about a different car, the 1995 Jeep Grand Cherokee. 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 & DIAGNOSTIC PROCEDURE. Turn ignition off. Attach most current DRB cartridge. Beginning in 1991, DRB cartridge has ability to check itself and DRB. It provides a volt-ohmmeter and performs any test required by air bag system diagnostics.
  2. Connect DRB to ASDM data link connector. On all models except Grand Cherokee, ASDM data link connector is located on ASDM. See Figure . On Grand Cherokee, ASDM data link connector is located on lower right side of center console. See Figure . To gain access to ASDM data link connector, remove small access cover on lower right side of center console.
  3. On all models, ensure all accessories are off. Turn ignition on. All character positions will illuminate and copyright information will appear on screen for a few seconds. Display will then change to DRB menu.
  4. If DRB displays an error message, refer to DRB ERROR MESSAGES. The following DRB modes can be accessed from DRB menu: VEHICLES TESTED, HOW TO USE, CONFIGURE and SELECT SYSTEM.
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