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Home >> Ford >> 2000 >> Explorer 4D Utility, 5.0 P, AWD >> Repair and Diagnosis (Single Page) >> External Pages >> Different car >> Section 1789 (Engine Controls Self-Diagnostics - EEC-V - CNG & Gasoline - Introduction, Self-Diagnostic System, Additional System Functions, Programming Pcm, Diagnostic Trouble Code Definitions, How To Use System Tests) >> Additional System Functions >> On-Board System Readiness Test Mode >> Description
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On-Board System Readiness Test Mode: Description

WARNING: This page does not describe the selected car, but rather 30 other vehicles, including the 2001 Mercury Sable, 2001 Mercury Mountaineer, 2001 Mercury Grand Marquis, 2001 Mercury Cougar, and 2001 Lincoln Town Car. However, it is still accessible from the selected car via links, so may be relevant.

All OBD-II scan tools should be able to display OSR test. The OSR will display monitors on the vehicle and status of all monitors; complete or not complete. If not complete, the scan tool will display which monitor has not completed. Comprehensive component, fuel and misfire monitors run continuously and will always display YES. Only a PCM reset, or keep alive RAM reset will cause non-continuous monitors to reinitialize to display NO.

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