Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSMERCURY2009MILAN PREMIER, 3.0 1, AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1174 (INFORMATION SYSTEM AND ENTERTAINMENT SYSTEMS)DIAGNOSTIC TESTSINFORMATION AND ENTERTAINMENT SYSTEMINSPECTION AND VERIFICATIONAUDIO CONTROL MODULE (ACM) SELF-DIAGNOSTIC MODE (EXCEPT NAVIGATION)
2009 Mercury Milan Premier, 3.0 1, AWD
Audio Control Module (ACM) Self-Diagnostic Mode (Except Navigation)
2009 Mercury Milan Premier, 3.0 1, AWDSECTION Audio Control Module (ACM) Self-Diagnostic Mode (Except Navigation)
WARNING: This page is about a different car, the 2008 Mercury Mariner and 2008 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
To enter the audio control module (ACM) self-diagnostic mode, the ACM must be turned on and in radio tuner (AM/FM) mode.
- To enter the following tests, press the desired preset button while in the speaker walk-around test or while in the ACM self-diagnostic mode.
- The self-diagnostic mode has the following functions available:
- Preset button 1 = On-Demand Self-Test. This button runs the on-demand self-test.
- Rotating the TUNE dial allows scrolling of any DTCs found during the test while in this menu.
- Preset button 2 = Display Continuous DTCs. This button enables viewing of any continuous DTCs that have been logged.
- Rotating the TUNE dial allows scrolling of any DTCs while in this menu.
- While continuous DTCs are being displayed, pressing the EJECT button will clear all present DTCs.
- Preset button 3 = Signal Strength Test. This button displays the antenna signal strength.
- Preset button 4 = Software Version Display. This button displays the ACM software version.
- Rotating the TUNE dial allows scrolling of all audio subsystem software versions while in this menu.
- Preset button 5 = Display Test. This test illuminates all the display segments for 5 seconds, then turns all segments off.
- Preset button 6 = Configuration Status. This button enables ACM configuration status.
- Rotating the TUNE dial displays the ACM part number while in this menu.
- Preset button 1 = On-Demand Self-Test. This button runs the on-demand self-test.
- To exit the self-diagnostic mode, turn the ACM off or turn the key to OFF.
- If the concern remains and the fault is not detected, go to Symptom Chart - Audio System to continue diagnostics.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.