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.
2004 Ford Freestar BaseFACTORY OEM SERVICE PROCEDURE
Section 587 (Module Communications Network)
WARNING: This page is about a different car, the 2005 Ford RV Cutaway, 2005 Ford Econoline, 2005 Ford E450 Super Duty, and 2005 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: No Controller Area Network (Can) Communication
- Pinpoint Test G: No International Standards Organization (ISO) 9141 Communications Network Communication
- Pinpoint Test H: No Module/Network Communication - No Power To The Diagnostic Tool
- Communications Network
Factory Service Tools
Use the Manual With the Right Hardware
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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.
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