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Audio Control Module (ACM) Self-Diagnostic Mode

WARNING: This page is about a different car, the 2013 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: If the Audio Front Control Module (ACM), FCDIM (if equipped), FCIM, or FDIM (if equipped) are inoperative (blank or do not power on), obtain the ACM part number by referencing the label attached to the Audio Front Control Module (ACM) chassis.
  1. Turn the ACM on.
  2. Operate the audio system in radio tuner AM/FM mode.
  3. Press and hold the eject button, and within 1 second, press the seek up button. If supported, the speaker walk around test will begin, and the display will indicate each speaker as it is tested.
    NOTE: AHU Diagnostics refers to the Audio Front Control Module (ACM), EFP Diagnostics refers to the FCIM, and MFD Diagnostics (if supported) refers to the FCDIM (if equipped).
  4. To exit the self-diagnostic mode, turn the Audio Front Control Module (ACM) off, or select "Exit Diagnostics."
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