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HOMESERVICE MANUALSLINCOLN2009NAVIGATOR L RWDREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTINFOTAINMENTINFORMATION SYSTEM & ENTERTAINMENT SYSTEMGENERAL PROCEDURESAUDIO CONTROL MODULE (ACM) SELF-DIAGNOSTIC MODEAUDIO SYSTEMS WITHOUT NAVIGATION
2009 Lincoln Navigator L RWD

Audio Systems Without Navigation

2009 Lincoln Navigator L RWDSECTION Audio Systems Without Navigation
  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.

    Before the speaker walk test is complete, carry out any of the following actions:

    DIAGNOSTIC FUNCTION DESCRIPTION CHART

    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 additional 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.
    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.
  5. To exit the self-diagnostic mode, turn the ACM  off.
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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.