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 ThunderbirdFACTORY OEM SERVICE PROCEDURE
Section 243 (Module Communications Network)
WARNING: This page is about a different car, the 2003 Ford Thunderbird. However, it is still accessible from the selected car via links, so may be relevant.
- Component Location
- Specifications
- Description And Operation
- Communications Network
- Standard Corporate Protocol (SCP) Network
- Controller Area Network (CAN)
- International Standards Organization (ISO) Network
- Anti-Lock Brake System (ABS) Module
- Front Electronic Module (FEM)
- Rear Electronic Module (REM)
- Restraint Control Module (RCM)
- Instrument Cluster
- Remote Keyless Entry (RKE) Module
- Powertrain Control Module (PCM)
- Dual Automatic Temperature Control (DATC) Module
- Audio Control Module (ACM)
- Principles of Operation
- Module Configuration
- Module Controlled Functions
- Communications Network
- Diagnosis And Testing
- Diagnostic Trouble Code Chart
- Communications Network
- Notes
- Special Tool(s)
- Inspection and Verification
- System Precheck
- Symptom Chart
- Connector Circuit Reference
- Data Link Connector (DLC) C251
- Restraint Control Module (RCM) C310a
- Instrument Cluster C220b
- Dual Automatic Temperature Control (DATC) Module C228b
- Audio Control Module (ACM) C240c
- Remote Keyless Entry (RKE) Module C4071
- Powertrain Control Module (PCM) C175b
- Anti-Lock Brake System (ABS) Module C135
- Rear Electronic Module (REM) C420c
- Rear Electronic Module (REM) C420e
- Rear Electronic Module (REM) C420f
- Front Electronic Module (FEM) C201a
- Front Electronic Module (FEM) C201c
- Front Electronic Module (FEM) C201e
- Interior Auxiliary Junction Box (AJB) C283d
- Interior Auxiliary Junction Box (AJB) C283b
- Pinpoint Test A: The Anti-Lock Brake System (ABS) Module Does Not Respond To The Diagnostic Tool
- Pinpoint Test B: The Front Electronic Module (FEM) 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 Instrument Cluster Does Not Respond To The Diagnostic Tool
- Pinpoint Test E: The Powertrain Control Module (PCM) Does Not Respond To The Diagnostic Tool
- Pinpoint Test F: The Dual Automatic Temperature Control (DATC) Module Does Not Respond To The Diagnostic Tool
- Pinpoint Test G: The Audio Control Module (ACM) Does Not Respond To The Diagnostic Tool
- Pinpoint Test H: The Remote Keyless Entry (RKE) Module Does Not Respond To The Diagnostic Tool
- Pinpoint Test I: The Rear Electronic Module (REM) Does Not Respond To The Diagnostic Tool
- Pinpoint Test J: No Powertrain Control Module (PCM) Standard Corporate Protocol (SCP) Network Communication
- Pinpoint Test K: No International Standards Organization (ISO) 9141 Network Communication
- Pinpoint Test L: No Standard Corporate Protocol (SCP) Network Communication
- Pinpoint Test M: No Module/Network Communication - No Response From The Diagnostic Tool
- Removal And Installation
Factory Service Tools
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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.