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Home >> Jeep >> 1991 >> Cherokee Laredo, 2D Utility, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> Self-Diagnostic System >> DRB-II Test Functions >> How To Use Mode
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How To Use Mode

  1. To access how to use mode, ensure ignition is off. Attach DRB-II to engine diagnostic connector. Connector is located on left side of engine compartment, near SBEC-II. See Figure . Turn ignition switch to RUN position.
  2. The copyright information and diagnostic program version will appear on screen for a few seconds. After a few seconds DRB-II menu will appear. At DRB-II menu, press "2" (HOW TO USE) key. Press ENTER key. A series of screens will be displayed explaining use of DRB-II keys used to move through engine diagnostic program.