Using DRB-II: Operation

NOTE: Although other scan testers are available, manufacturer recommends using Diagnostic Readout Box II (DRB-II) to diagnose system.

Ensure DRB-II is connected to engine diagnostic connector located in engine compartment. Ensure correct cartridge for vehicle and system being diagnosed is installed in DRB-II. Menu selections will vary depending on vehicle and system being diagnosed. Follow DRB-II screen prompts to actuate, adjust, monitor, reset, test and diagnose system as necessary.

DRB-II is grounded through engine diagnostic connector. Only one volt-ohmmeter test lead is required when using volt-ohmmeter option. DRB-II volt-ohmmeter should only be used when self-diagnostic tests require use of this option.

If DRB-II has a blank screen or displays RAM TEST FAILURE, CARTRIDGE ERROR, KEY PAD TEST FAILURE, LOW BATTERY or HIGH BATTERY, DRB-II failure is indicated. To diagnose and correct these conditions, see G - BODY TESTS W/ CODES article.