Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSFORD2004MUSTANG BASE, 2D COUPE, 3.9 6, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 475 (MODULE COMMUNICATIONS NETWORK)
2004 Ford Mustang Base, 2D Coupe, 3.9 6, Automatic
Section 475 (Module Communications Network)
2004 Ford Mustang Base, 2D Coupe, 3.9 6, AutomaticSECTION Section 475 (Module Communications Network)
WARNING: This page is about a different car, the 2004 Ford RV Cutaway, 2004 Ford Econoline, 2004 Ford E450 Super Duty, and 2004 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
- Description And Operation
- Diagnosis And Testing
- Communications Network
- Notes
- Principles of Operation
- Inspection and Verification
- Symptom Chart
- Pinpoint Tests
- Pinpoint Test A: The Powertrain Control Module (Pcm) Does Not Respond To The Diagnostic Tool
- Pinpoint Test B: The Instrument Cluster Does Not Respond To The Diagnostic Tool
- Pinpoint Test C: The Restraint Control Module (RCM) Does Not Respond To The Diagnostic Tool
- Pinpoint Test D: The Anti-Lock Brake System (Abs) Module Does Not Respond To The Diagnostic Tool
- Pinpoint Test E: The Vehicle Security Module Does Not Respond To The Diagnostic Tool
- Pinpoint Test F: The Natural Gas Alternative Fuel Control Module (AFCM) Does Not Respond To The Diagnostic Tool
- Pinpoint Test G: No Standard Corporate Protocol (SCP) Module/Network Communication
- Pinpoint Test H: No International Standards Organization (ISO) 9141 Network Communication
- Pinpoint Test I: No Module/Network Communication - No Power To The Diagnostic Tool
- Communications Network
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.