Yes | GO to M4 | |
|---|---|---|
No | REPAIR the circuit in question. | |
M4 CHECK FOR CORRECT ACM (AUDIO FRONT CONTROL MODULE) OPERATION
Ignition OFF. Disconnect and inspect all the ACM connectors and related in-line connectors. Repair:
corrosion (install new connector or terminals - clean module pins) damaged or bent pins - install new terminals/pins pushed-out pins - install new pins as necessary
Reconnect the ACM connectors and related in-line 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. For AM/FM/CD /SYNC, REFER to: Audio Front Control Module (ACM) (415-00A Information and Entertainment System - General Information - Vehicles With: AM/FM/CD/SYNC, Removal and Installation). For touchscreen display, REFER to: Audio Front Control Module (ACM) (415-00B Information and Entertainment System - General Information - Vehicles With: Touchscreen Display, 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. | |
The Global Positioning System Module (GPSM) Does Not Respond To The Diagnostic Scan Tool
Refer to Wiring Diagrams Cell 14 for schematic and connector information.
Refer to Wiring Diagrams Cell 132 for schematic and connector information.
Refer to Wiring Diagrams Cell 133 for schematic and connector information.
Normal Operation and Fault Conditions
For vehicles without a touchscreen, the GPSM communicates on the MS-CAN, and communicates with the diagnostic scan tool through the HS-CAN2. Diagnostic messages are sent/received through the HS-CAN2 circuits at the DLC, and translated through the GWM to the MS-CAN.
Visual Inspection and Diagnostic Pre-checks
Verify BCM fuse 32 (10A) is OK.
PINPOINT TEST N : THE GLOBAL POSITIONING SYSTEM MODULE (GPSM) DOES NOT RESPOND
TO THE DIAGNOSTIC SCAN TOOL
N1 CHECK THE GPSM (GLOBAL POSITIONING SYSTEM MODULE) VOLTAGE SUPPLY CIRCUIT FOR AN OPEN
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.