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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 

Visual Inspection and Diagnostic Pre-checks 

Verify RJB fuse 10 (25A) is OK.