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 268 (MODULE COMMUNICATIONS NETWORK SYSTEM)
2004 Ford Mustang Base, 2D Coupe, 3.9 6, Automatic
Section 268 (Module Communications Network System)
2004 Ford Mustang Base, 2D Coupe, 3.9 6, AutomaticSECTION Section 268 (Module Communications Network System)
WARNING: This page is about a different car, the 2003 Ford Mustang. However, it is still accessible from the selected car via links, so may be relevant.
- Specifications
- Description And Operation
- Diagnostic And Testing
- Communications Network
- Notes
- Special Tool(s)
- Principles of Operation
- Inspection and Verification
- System Precheck
- Symptom Chart
- Pinpoint Tests
- Notes
- Pinpoint Test A: The Module Does Not Respond To Diagnostic Tool - Anti-Lock Brake Control Module
- Pinpoint Test B: The Module Does Not Respond To Diagnostic Tool - Generic Electronic Module (Gem)
- Pinpoint Test C: The Module Does Not Respond To Diagnostic Tool - Restraint Control Module (RCM)
- Pinpoint Test D: The Module Does Not Respond To Diagnostic Tool - Instrument Cluster
- Pinpoint Test E: The Module Does Not Respond To Diagnostic Tool - Powertrain Control Module (Pcm)
- Pinpoint Test F: No Module/Network Communication - ISO 9141 Communication Network
- Pinpoint Test G: No Module/Network Communication - SCP Network
- Pinpoint Test H: No Module/Network Communication - No Power To Diagnostic Tool
- Communications Network
- General Procedures
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.