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 Lincoln Aviator AWDFACTORY OEM SERVICE PROCEDURE
Section 1391 (Module Communications Network System)
WARNING: This page is about a different car, the 2005 Lincoln Town Car. However, it is still accessible from the selected car via links, so may be relevant.
- Specifications
- Description And Operation
- Diagnosis And Testing
- Communications Network
- Notes
- Special Tool(s)
- Principles of Operation
- Notes
- ABS Module
- Audio Control Module (ACM)
- ACM (with Navigation Display & built-in 6 CDDJ)
- Driver Door Module (DDM)
- Driver Seat Module (DSM)
- Dual Automatic Temperature Control (DATC) Module
- Message Center Module
- Instrument Cluster
- Lighting Control Module (LCM)
- Luggage Compartment Lid Module
- Navigation System Module
- Parking Aid Module
- Powertrain Control Module (PCM)
- Rear Air Suspension Module
- Restraint Control Module (RCM)
- Inspection and Verification
- System Precheck
- Symptom Chart
- Pinpoint Tests
- Pinpoint Test A: The Anti-Lock Brake System (Abs) Module Does Not Respond To The Diagnostic Tool
- Pinpoint Test B: The Audio Control Module (ACM) Does Not Respond To The Diagnostic Tool
- Pinpoint Test C: The Driver Door Module (DDM) Does Not Respond To The Diagnostic Tool
- Pinpoint Test D: The Driver Seat Module (DSM) Does Not Respond To The Diagnostic Tool
- Pinpoint Test E: The Dual Automatic Temperature Control (DATC) Module Does Not Respond To The Diagnostic Tool
- Pinpoint Test F: The Restraint Control Module (RCM) Does Not Respond To The Diagnostic Tool
- Pinpoint Test G: The Lighting Control Module (LCM) Does Not Respond To The Diagnostic Tool
- Pinpoint Test H: The Navigation System Module Does Not Respond To The Diagnostic Tool
- Pinpoint Test I: The Powertrain Control Module (Pcm) Does Not Respond To The Diagnostic Tool - Controller Area Network (Can)
- Pinpoint Test J: The Powertrain Control Module (Pcm) Does Not Respond To The Diagnostic Tool - Standard Corporate Protocol (SCP) Communications Network
- Pinpoint Test K: The Rear Air Suspension Module Does Not Respond To The Diagnostic Tool
- Pinpoint Test L: The Instrument Cluster Does Not Respond To The Diagnostic Tool
- Pinpoint Test M: The Message Center Module Does Not Respond To The Diagnostic Tool
- Pinpoint Test N: The Parking Aid Module Does Not Respond To The Diagnostic Tool
- Pinpoint Test O: The Luggage Compartment Lid Module Does Not Respond To The Diagnostic Tool
- Pinpoint Test P: No International Standards Organization (ISO) 9141 Communications Network Communication
- Pinpoint Test Q: No Standard Corporate Protocol (SCP) Communications Network Communication
- Pinpoint Test R: No Universal Asynchronous Receiver-Transmitter (UART) - Based Protocol (UBP) Communications Network Communication
- Pinpoint Test S: No Controller Area Network (Can) Communication
- Pinpoint Test T: No Module/Network Communication - No Power To The Diagnostic Tool
- Communications Network
- General Procedures
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
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.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
Comes to youSame-day available12-month warranty
Get a Free QuoteNo obligation. See pricing before you book.