Positive Lead | Measurement / Action | Negative Lead |
|---|---|---|
C240B-15 | C4828-2 |
Are the resistances less than 3 ohms?
Yes | GO to AC4 |
|---|---|
No | REPAIR the circuit in question. |
AC4 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 AC5 |
|---|---|
No | REPAIR the circuit in question. |
AC5 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 (415-00A Information and Entertainment System - General Information - Vehicles With: AM/FM/CD/SYNC, 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 AC6 |
|---|---|
No | The system is operating correctly at this time. The concern was caused by an inoperative ANC microphone. |
AC6 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)
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.