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PINPOINT TEST AG : No Power To The DLC

  1. AG1 CHECK THE DLC PINS FOR DAMAGE

    • Ignition OFF.
    • Disconnect the scan tool cable from the DLC.
    • Inspect DLC pins 4, 5 and 16 for damage.

    Are DLC pins 4, 5 and 16 OK? 

    Yes  GO to  AG2.
    No  REPAIR the DLC as necessary.

  2. AG2 CHECK THE DLC VOLTAGE SUPPLY FOR AN OPEN

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C251-16
      GFD33595Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is the voltage greater than 11 volts? 

    Yes  GO to  AG3.
    No  VERIFY the BCM fuse 24 (15A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the OEM ELECTRICAL WIRING DIAGRAM INTRODUCTION to identify the possible causes of the circuit short.

  3. AG3 CHECK THE DLC GROUND CIRCUITS FOR AN OPEN

    • Disconnect: Negative Battery Cable.
    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C251-4
      GFD33596Courtesy of FORD MOTOR COMPANY
      		 Ground
      C251-5
      GFD33596Courtesy of FORD MOTOR COMPANY
      		 Ground

    Are the resistances less than 3 ohms? 

    Yes  REPAIR the scan tool. CONNECT the negative battery cable.
    No  REPAIR the circuit in question. CONNECT the negative battery cable.
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