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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 >> Hardware Limited Operational Strategy
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Hardware Limited Operational Strategy

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If a number of system or sensor failures are present and PCM is not receiving enough information to operate, PCM will switch to HLOS mode. PCM will output fixed values to allow operation of vehicle. Driveability problems will be present. PCM will not output diagnostic trouble codes in this mode.

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