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Symptom Chart - General Audio System

WARNING: This page is about a different car, the 2016 Ford Expedition. However, it is still accessible from the selected car via links, so may be relevant.
Condition Possible Sources Action
A module does not respond to the diagnostic scan tool Fuse
Wiring, terminals, or connectors
Module		 REFER to Module Communications Network .
The RH steering wheel switches are inoperative or do not operate correctly - Vehicles with SYNC ® Refer to the Pinpoint Test GO to Pinpoint Test W .
The CD player is inoperative or 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) .
The speed compensated volume does not operate correctly Refer to the Pinpoint Test GO to Pinpoint Test J .
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