LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Ford >> 2004 >> Freestar Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 2016 (Information System And Entertainment System) >> General Procedures >> Audio Control Module (ACM) Self-Diagnostic Mode >> Audio Systems Without Navigation
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Audio Systems Without Navigation

WARNING: This page is about a different car, the 2010 Mercury Milan, 2010 Lincoln MKZ, and 2010 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
  1. Turn the Audio Control Module (ACM) on.
  2. Operate the audio system in radio tuner (AM/FM) mode.
  3. Press and hold preset buttons 3 and 6 for 3 seconds until the speaker walk test begins.
    • The display indicates each speaker as it is tested.
    4. NOTE: If the speaker walk test is the only test required, this procedure can be stopped after step  3 by turning the ACM  off.
  4. Before the speaker walk test is complete, carry out any of the following actions:
    DIAGNOSTIC FUNCTION TABLE

    Preset Button Press Diagnostic Function Display Diagnostic Function Description
    1 ACM  Self-Test SELF TEST The ACM  carries out a self-test. At the end of the self-test, the display either indicates SELF PASS or scrolls through any DTCs present. Note that the self-test may not indicate all DTCs that are present. If DTCs are suspected, retrieve continuous and on-demand DTCs using the scan tool.
    2 View DTCs NO DTCS, or scrolls through DTCs The ACM  displays any DTCs that are present. To scroll through the DTCs, press the TUNE UP button. If no DTCs are present, the display reads NO DTCS.
    3 AM/FM Antenna Signal Strength SIGNAL ### The ACM  displays the AM/FM antenna signal strength. To run this test, the audio system should be in AM radio tuner mode before entering the ACM  self-diagnostic mode.
    4 Software Levels SOFT LEVELS The ACM  displays software levels for various components of the audio system. Knowing the software levels may not aid diagnostics. Press the TUNE UP button to scroll through the software levels. Do not use the tune rotary knob, as it will cause the ACM  to exit self-diagnostic mode.
    5 Display Test DISPLAY TEST, then all segments illuminate All of the ACM  display segments illuminate.
    6 Retrieve ACM  Part Number RADIO CONFIG The ACM  displays the ACM  part number, and various configuration levels. Press the TUNE UP button to scroll to the desired function.
    7 Satellite Radio Tones Test SAT TONE TEST The ACM  generates alternating left/right test tones. This can confirm if the internal satellite radio receiver is able to output audio signals.
  5. To exit the self-diagnostic mode, turn the ACM  off.
scientia non olet · About LEMON Manuals