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Inspection and Verification

WARNING: This page is about a different car, the 2012 Ford Pickup, 2012 Ford F550 Super Duty, 2012 Ford F450 Super Duty, and 2012 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
  1. Verify the customer concern.
  2. Visually inspect for obvious signs of mechanical or electrical damage.
    VISUAL INSPECTION CHART

    Mechanical Electrical
    • Audio Front Control Module (ACM)
    • Antenna
    • Universal Serial Bus (USB) port (if equipped)
    • Steering wheel controls
    • Audio input jack
    • Speaker(s)
    • Noise suppression equipment
    • Body Control Module (BCM) fuse(s):
      • 19 (20A) (subwoofer amplifier)
      • 24 (15A) (Steering Column Control Module (SCCM))
      • 26 (5A) (SCCM)
      • 27 (20A) (audio amplifier)
      • 29 (20A) (ACM hot at all times, Accessory Protocol Interface Module (APIM), Global Positioning System Module (GPSM))
      • 38 (10A) (accessory delay feed)
    • Wiring, terminals or connectors
  3. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
    4. NOTE: Make sure to use the latest scan tool software release.
  4. If the cause is not visually evident, connect the scan tool to the Data Link Connector (DLC).
    5. NOTE: The Vehicle Communication Module (VCM) LED prove-out confirms power and ground from the DLC are provided to the VCM.
  5. If the scan tool does not communicate with the VCM:
    • check the VCM connection to the vehicle.
    • check the scan tool connection to the VCM.
    • refer to MODULE COMMUNICATIONS NETWORK , No Power To The Scan Tool, to diagnose no power to the scan tool.
  6. If the scan tool does not communicate with the vehicle:
    • verify the ignition key is in the ON position.
    • verify the scan tool operation with a known good vehicle.
    • refer to MODULE COMMUNICATIONS NETWORK , to diagnose no response from the PCM.
  7. Carry out the network test.
    • If the scan tool responds with no communication for one or more modules, refer to MODULE COMMUNICATIONS NETWORK .
    • If the network test passes, retrieve and record the continuous memory DTCs.
    8. NOTE: Do not press any buttons on the ACM while it is carrying out the self-test.
  8. Clear the continuous DTCs and carry out the self-test diagnostics for the ACM.
  9. If the DTCs retrieved are related to the concern, go to DTC CHARTS . For all other DTCs, refer to the Diagnostic Trouble Code (DTC) Chart in MULTIFUNCTION ELECTRONIC MODULES .
  10. If no DTCs related to the concern are retrieved, refer to the SYMPTOM CHARTS .
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