Is DTC B116A:01 still present in the DACMC?

Ignition OFF. Ignition ON. Wait at least 5 seconds Using a diagnostic scan tool, perform the DACMC self-test.

Yes	GO to AB6
No	The system is operating correctly at this time. The concern was caused by an inoperative ANC microphone.

AB6 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) (415-00A Information and Entertainment System - General Information - Vehicles With: AM/FM/CD/SYNC, Removal and Installation).
No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

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) (415-00A Information and Entertainment System - General Information - Vehicles With: AM/FM/CD/SYNC, Removal and Installation).

The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

B117A:01

Refer to Wiring Diagrams Cell 133 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - System Operation and Component Description (415-00A Information and Entertainment System - General Information - Vehicles With: AM/FM/CD/SYNC, Description and Operation). See ANC, ANC Microphones, and DACMC.

DTC Fault Trigger Conditions

Description	Fault Trigger Conditions
B117A:01 Backup Microphone: General Electrical Failure	Set by the DACMC when a failure is detected on the LHR quarter panel ANC microphone circuits (convertible only).

Description

Fault Trigger Conditions

B117A:01 Backup Microphone: General

Electrical Failure

Set by the DACMC when a failure is detected on the LHR quarter panel ANC microphone circuits (convertible only).

DTC

Source reference 4211

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.