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Home >> Ford >> 2009 >> Flex Limited, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 125 (Engine Controls - Diagnostic Methods -- 6.0L Diesel (99P F450/550)) >> Analyzing Powertrain Control Module (PCM) Data >> Various Data Procedures >> Harness Opens

Harness Opens

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The purpose is to check the harness for open circuits.

  1. Key OFF.
  2. Disconnect the component from the harness.
  3. Disconnect the appropriate PCM harness.
  4. Using an ohmmeter, isolate the circuit in question from the harness pin to the component connector signal pin.
  5. The resistance value should be less than 5 ohms.
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