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 MANUALSFORD2003WINDSTAR BASEREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1715 (MODULE COMMUNICATIONS NETWORK -- F250-F550 SUPER DUTY)
2003 Ford Windstar Base
Section 1715 (Module Communications Network -- F250-F550 Super Duty)
2003 Ford Windstar BaseSECTION Section 1715 (Module Communications Network -- F250-F550 Super Duty)
WARNING: This page is about a different car, the 2007 Ford Pickup, 2007 Ford F550 Super Duty, 2007 Ford F450 Super Duty, and 2007 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
- Description And Operation
- Diagnostic Tests
- 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 Scan Tool or No High Speed Controller Area Network (HS-CAN) Communication
- Pinpoint Test B: The Anti-Lock Brake System (ABS) Module Does Not Respond To The Scan Tool
- Pinpoint Test C: The Instrument Cluster Does Not Respond To The Scan Tool
- Pinpoint Test D: The Trailer Brake Control (TBC) Module Does Not Respond To The Scan Tool
- Pinpoint Test E: The Electronic Automatic Temperature Control (EATC) Module Does Not Respond To The Scan Tool
- Pinpoint Test F: The Vehicle Security Module Does Not Respond To The Scan Tool
- Pinpoint Test G: The Four Wheel Drive (4WD) Control Module Does Not Respond To The Scan Tool
- Pinpoint Test H: The Restraints Control Module (RCM) Does Not Respond To The Scan Tool
- Pinpoint Test I: The Parking Aid Module Does Not Respond To The Scan Tool
- Pinpoint Test J: No Universal Asynchronous Receiver-Transmitter (UART)-Based Protocol (UBP) Network Communication
- Pinpoint Test K: No International Standards Organization (ISO) 9141 Network Communication
- Pinpoint Test L: No Power To The Scan 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:
- • 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.