Diagnosis With DRB-II & Jeep Adapter

The ECU has been programmed to monitor several different circuits of the engine control system. If a problem is sensed with a monitored circuit, a fault code is stored in the ECU.

The setting of a specific fault code is the result of a particular system failure, NOT the reason for that failure, such as failure of a specific component. The existence of a particular code denotes the probable area of the malfunction, not necessarily the failed component itself.

With DRB-II connected to Jeep adapter and Jeep/Eagle adapter connected to both vehicle diagnostic connectors, all character positions will illuminate and copyright information will appear on screen. The DRB-II will offer 3 menus, "VEHICLES TESTED", "HOW TO USE" and "SELECT VEHICLE".