DTC Fault Trigger Conditions

Refer to Wiring Diagrams Cell 131 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System (415-00B) . See Audio DSP Module.

DTC Description Fault Trigger Conditions DTC Type B13F9:13 Audio Input 3: Set by the audio DSP module when an open is detected on Continuous Circuit Open the LH audio signal circuits from the ACM to the audio DSP module. B1A01:01 Speaker #1: Set by the audio DSP module when a failure is detected on On-demand General Electrical the LHF door woofer speaker circuits. Failure B1A01:11 Speaker #1: Circuit Set by the audio DSP module when a short to ground is Continuous and Short To Ground detected on the LHF door woofer speaker circuits. When on-demand DTC B1A01:11 is set, the speaker output is disabled. B1A01:12 Speaker #1: Circuit Set by the audio DSP module when a short to voltage is Continuous and Short To Battery detected on the LHF door woofer speaker circuits. When on-demand DTC B1A01:12 is set, the speaker output is disabled. B1A01:13 Speaker #1: Circuit Set by the audio DSP module when an open is detected on On-demand Open the LHF door woofer speaker circuits.

Original table alignment retained · Scroll horizontally if needed

Possible Sources

Speaker Wiring, terminals, or connectors ACM Audio DSP module

PINPOINT TEST J : THE LHF (LEFT-HAND FRONT) DOOR WOOFER SPEAKER IS INOPERATIVE

J1 CHECK THE AUDIO SIGNAL TO THE LHF (LEFT-HAND FRONT) DOOR WOOFER SPEAKER

Ignition OFF. Disconnect: LHF Door Woofer Speaker C523. Operate the audio system in AM/ FM mode. Measure:

Click to display connectors

Positive Lead	Measurement / Action	Negative Lead
C523-1		C523-4

DTC Fault Trigger Conditions — original illustration 1, reference 4390Original colors & callouts · Select to enlarge

Is a fluctuating AC voltage present?

Yes	INSTALL a new LHF door woofer speaker. REFER to: Front Door Speaker LH (415-00B Information and Entertainment System - General Information - Vehicles With: Touchscreen Display, Removal and Installation).

Source reference 4390

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.