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Audio Control Module (ACM) Self-Diagnostic Mode
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<blockquote data-quote="Hockster" data-source="post: 356929" data-attributes="member: 70"><p>Audio Systems Without Navigation </p><p></p><p>NOTE: If the Audio Control Module (ACM) is inoperable the ACM part number may be obtained from a label affixed to the chassis. </p><p></p><p>Turn the ACM on. </p><p>Operate the audio system in radio tuner (AM/FM) mode. </p><p>Press and hold preset buttons 3 and 6 for 3 seconds until the speaker walk test begins. </p><p>The display indicates each speaker as it is tested. </p><p>NOTE: If the speaker walk test is the only test required, this procedure can be stopped after Step 3 by turning the ACM off. </p><p></p><p>Before the speaker walk test is complete, carry out any of the following actions: </p><p></p><p>Preset Button Press Diagnostic Function Display Diagnostic Function Description </p><p>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. </p><p>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. </p><p>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. </p><p>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. </p><p>5 Display Test DISPLAY TEST, then all segments illuminate All of the ACM display segments illuminate. </p><p>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. </p><p></p><p>[ATTACH=full]205161[/ATTACH]</p><p>To exit the self-diagnostic mode, turn the ACM off.</p></blockquote><p></p>
[QUOTE="Hockster, post: 356929, member: 70"] Audio Systems Without Navigation NOTE: If the Audio Control Module (ACM) is inoperable the ACM part number may be obtained from a label affixed to the chassis. Turn the ACM on. Operate the audio system in radio tuner (AM/FM) mode. 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. 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: 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. [ATTACH=full]205161[/ATTACH] To exit the self-diagnostic mode, turn the ACM off. [/QUOTE]
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Audio Control Module (ACM) Self-Diagnostic Mode
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