Mustang V6-4.0L (2008)
D3-D5
Test E: The Audio Control Module (ACM) Does Not Respond To The Scan Tool
PINPOINT TEST E: THE AUDIO CONTROL MODULE (ACM) DOES NOT RESPOND TO THE SCAN TOOL
Normal Operation
The audio control module (ACM) communicates with the scan tool through the medium speed controller area network (MS-CAN). Circuits 1847
(WH/OG) (MS-CAN +) and 1848 (PK/OG) (MS-CAN -) provide the network connection to the ACM. The ACM shares the MS-CAN with the smart
junction box (SJB), the SDARS module (if equipped), and the instrument cluster (IC). Voltage for the ACM is provided by circuits 687 (GY/YE) and
729 (RD/WH). Circuit 1204 (BK/OG) provides ground.
This pinpoint test is intended to diagnose the following:
-
Fuse
-
Wiring, terminals and connectors
-
ACM
