Symptom Chart - General Audio System

WARNING: This page is about a different car, the 2010 Lincoln MKX and 2010 Ford Edge. However, it is still accessible from the selected car via links, so may be relevant.

GENERAL AUDIO SYSTEM SYMPTOM CHART

Condition	Possible Sources	Action
No communication with the Audio Control Module (ACM)	Fuse Wiring, terminals or connectors ACM	REFER to MODULE COMMUNICATIONS NETWORK .
No communication with the Satellite Digital Audio Receiver System (SDARS) module	Fuse Wiring, terminals or connectors SDARS module	REFER to MODULE COMMUNICATIONS NETWORK .
No communication with the audio Digital Signal Processing (DSP) module	Fuse Wiring, terminals or connectors Audio DSP module	REFER to MODULE COMMUNICATIONS NETWORK .
No communication with the Global Positioning System Module (GPSM)	Fuse Wiring, terminals or connectors GPSM	REFER to MODULE COMMUNICATIONS NETWORK .
No communication with the Accessory Protocol Interface Module (APIM)	Fuse Wiring, terminals or connectors APIM	REFER to MODULE COMMUNICATIONS NETWORK .
The ACM backlighting does not operate correctly	Illumination system concern ACM	REFER to INSTRUMENT CLUSTER AND PANEL ILLUMINATION .
The CD player is inoperative/does not operate correctly	CD ACM	INSPECT the CD for scratches, fingerprints, a loose paper label, incorrect format, or damage. INSERT a known good CD and TEST the system. If the system operates correctly, the concern was caused by a damaged CD. If the system does not operate correctly, INSTALL a new ACM . REFER to AUDIO CONTROL MODULE (ACM) . TEST the system for normal operation.
The jukebox feature does not operate correctly - vehicles with navigation only	Customer error ACM	NOTE: The ACM cannot rip (record) MP3 files from a disc. Refer to the Owner's Literature for acceptable disc formats. CARRY OUT various functions using the jukebox feature. Refer to the Owner's Literature. If the system operates correctly, the concern may have been caused by customer error. INSTRUCT the customer on the correct operation of the jukebox system. If the system does not operate correctly, INSTALL a new ACM . REFER to AUDIO CONTROL MODULE (ACM) . TEST the system for normal operation.
The Audio Control Module (ACM) touchscreen display is completely inoperative - vehicles with navigation	Communication network concern ACM	GO to PINPOINT TEST AA .
The Audio Control Module (ACM) does not respond to touchscreen or button presses	Communication network concern ACM	GO to PINPOINT TEST Z .
An individual Audio Control Module (ACM) touchscreen display is inoperative/does not operate correctly - vehicles with navigation	Communication network concern ACM	GO to PINPOINT TEST AA .
Loud popping sound when cycling the ignition	Fuse Wiring, terminals or connectors ACM	GO to PINPOINT TEST AB .
The steering wheel controls are inoperative/do not operate correctly	Wiring, terminals or connectors Clockspring Steering wheel controls ACM APIM (without navigation only)	GO to PINPOINT TEST F .
The speed sensitive volume does not operate correctly	Speed sensitive volume setting Vehicle Speed Sensor (VSS) signal concern Communication network concern Audio DSP module (THX® sound only) ACM	GO to PINPOINT TEST Y .
The audio input jack is inoperative/does not operate correctly	Wiring, terminals or connectors Audio input jack APIM (vehicles with the SYNC system) ACM (vehicles without the SYNC system)	GO to PINPOINT TEST G .
Voice recognition is inoperative/does not operate correctly - vehicles without the SYNC system	Fuse Wiring, terminals or connectors Steering wheel controls Microphone (part of the auto-dimming interior mirror) ACM	GO to PINPOINT TEST R .
Voice recognition is inoperative/does not operate correctly - vehicles with the SYNC system	Fuse Wiring, terminals or connectors Steering wheel controls Microphone (part of the auto-dimming interior mirror) ACM (if equipped with navigation) APIM	GO to PINPOINT TEST W .
The audio does not reduce when the parking aid tone sounds	Parking aid system concern ACM	GO to PINPOINT TEST Q .