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 202 (ENTERTAINMENT SYSTEM - GENERAL INFORMATION)DIAGNOSIS AND TESTINGAUDIO SYSTEMINSPECTION AND VERIFICATIONAUDIO CONTROL MODULE DIAGNOSTIC TROUBLE CODE (DTC) INDEX
2009 Mercury Milan Premier, 3.0 1, AWD
Audio Control Module Diagnostic Trouble Code (DTC) Index
2009 Mercury Milan Premier, 3.0 1, AWDSECTION Audio Control Module Diagnostic Trouble Code (DTC) Index
WARNING: This page is about a different car, the 2005 Mercury Montego, 2005 Ford Freestyle, and 2005 Ford Five Hundred. However, it is still accessible from the selected car via links, so may be relevant.
DTC DETECTION CONDITION CHART
| DTC | Description | Source | Action |
|---|---|---|---|
| B1317 | Battery Voltage High | Audio Control Module | CLEAR the DTCs. REPEAT the audio control module self-test. If DTC B1317 is retrieved again, REFER to CHARGING SYSTEM - GENERAL INFORMATION to diagnose the charging system. CLEAR the DTCs. REPEAT the self-test. |
| B1318 | Battery Voltage Low | Audio Control Module | CLEAR the DTCs. REPEAT the audio control module self-test. If DTC B1318 is retrieved again, REFER to CHARGING SYSTEM - GENERAL INFORMATION to diagnose the charging system. CLEAR the DTCs. REPEAT the self-test. |
| B1342 | ECU is Faulted | Audio Control Module | CLEAR the DTCs. REPEAT the audio control module self-test. If DTC B1342 is retrieved again, REMOVE the audio control unit. REFER to AUDIO UNIT . SEND it to an authorized repair facility. CLEAR the DTCs. REPEAT the self-test after the repair. |
| B2405 | Audio Disc CD Player Thermal Shutdown Fault | Audio Control Module | Allow unit to cool - Disregard. |
| B2406 | Audio Disc CD Player Internal Fault | Audio Control Module | CLEAR the DTCs. REPEAT the audio control module self-test. If DTC B2406 is retrieved again, REMOVE the audio control unit. REFER to AUDIO UNIT . SEND it to an authorized repair facility. CLEAR the DTCs. REPEAT the self-test after the repair. |
| B2477 | Module Configuration Failure | Audio Control Module | REFER to MODULE CONFIGURATION to continue diagnosis of the module configuration. |
| B2924 | Audio Button Stuck | Audio Control Module | CLEAR the DTCs. REPEAT the audio control module self-test. If DTC B2924 is retrieved again, REMOVE the audio control unit. REFER to AUDIO UNIT . SEND it to an authorized repair facility. CLEAR the DTCs. REPEAT the self-test after the repair. |
| B2965 | Audio System Speaker Circuit Fault | Audio Control Module | GO to PINPOINT TEST E . |
| U0073 | Control Module Communication BUS Off | Audio Control Module | REFER to MODULE COMMUNICATIONS NETWORK to continue diagnosis of the communication network. |
| U1900 | CAN Communication BUS Fault - Receiver Error | Audio Control Module | REFER to MODULE COMMUNICATIONS NETWORK to continue diagnosis of the communication network. |
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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.