AI4 CHECK THE LHR (LEFT-HAND REAR) QUARTER PANEL ANC (ACTIVE NOISE CONTROL) MICROPHONE CIRCUITS FOR A SHORT TOGETHER
Measure:
Click to display connectors
Positive Lead | Measurement / Action | Negative Lead |
|---|---|---|
C240B-2 | C240B-15 |
Is the resistance greater than 10,000 ohms?
Yes | GO to AI5 |
|---|---|
No | REPAIR the circuit in question. |
AI5 ISOLATE THE LHR (LEFT-HAND REAR) QUARTER PANEL ANC (ACTIVE NOISE CONTROL) MICROPHONE
Connect: ACM C240B. Install a new LHR quarter panel ANC microphone. REFER to: Active Noise Control Microphone (415-00B Information and Entertainment System - General Information - Vehicles With: Touchscreen Display, Removal and Installation). Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) from the DACMC. Ignition OFF. Ignition ON. Wait at least 5 seconds Using a diagnostic scan tool, perform the DACMC self-test.
Is DTC B117A:01 still present in the DACMC?
Yes | GO to AI6 |
|---|---|
No | The system is operating correctly at this time. The concern was caused by an inoperative ANC microphone. |
AI6 CHECK FOR CORRECT DACMC (DIGITAL AUDIO CONTROL MODULE C) OPERATION
Ignition OFF. Disconnect and inspect all the ACM connectors. Repair:
Corrosion (clean module pins or install new connectors or terminals) Damaged or bent pins (install new terminals or pins) Pushed-out pins (install new pins as necessary)
Reconnect the ACM connectors. Make sure they seat and latch correctly. Operate the system and determine if the concern is still present.
Is the concern still present?
Yes | CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new ACM. REFER to: Audio Front Control Module (ACM) (415-00B Information and Entertainment System - General Information - Vehicles With: Touchscreen Display, Removal and Installation). |
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2016 Mustang workshop publication supplied to Mustang Atlas. Original technical text and illustrations; HTML formatting by Mustang Atlas. Source page numbering is retained for traceability. Follow the configuration, revision, warnings, and cross-references in the material. About this edition.