Pinpoint Test L : The DSP (Audio Digital Signal Processing Module) Does Not Respond To The Scan Tool: Notes
WARNING: This page is about a different car, the 2015 Ford Focus. However, it is still accessible from the selected car via links, so may be relevant.
The DSP Does Not Respond To the Scan Tool
Diagnostic Overview
Diagnostics in this service information assume a certain skill level and knowledge of Ford-specific diagnostic practices. REFER to: Diagnostic Methods
Refer to Wiring Diagrams POWER DISTRIBUTION SYSTEM for schematic and connector information.
Refer to Wiring Diagrams AUDIO SYSTEM/NAVIGATION for schematic and connector information.
Normal Operation and Fault Conditions
The DSP communicates with the scan tool through the MS-CAN. The IPC is used as the gateway module.
Possible Sources
- Fuse
- Wiring, terminals and connector
- DSP
Visual Inspection and Diagnostic Pre-checks
Verify RJB fuse 10 (25A) is OK.