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Home >> Lincoln >> 2000 >> Navigator 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 2808 (Engine Controls - Self-Diagnostics Introduction - CNG, Flex-Fuel & Gasoline) >> 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 concerns will be present. PCM will not output diagnostic trouble codes in this mode.

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