The Ford Diagnostic Trouble Code (DTC) U2100:00 indicates an “Initial Configuration Not Complete” error. This issue often surfaces after software updates, particularly in vehicles with modified as-built data, but can also occur in stock configurations. While module replacement is sometimes suggested, this guide provides effective solutions using a Ford diagnostic interface and Forscan or FRDS software.
Understanding Ford DTC U2100:00
The U2100:00 code signifies a communication breakdown within the vehicle’s modules. This can happen when a module fails to properly rewrite default parameters after a software update, leading to corrupted memory. Persistent U-codes can block future updates, making it crucial to address this issue promptly. This guide outlines two primary methods for resolving this DTC: using Forscan and using FRDS.
Resolving U2100:00 with Forscan
This method involves a forced rewrite of the as-built data and a module reset. Importantly, restoring a known-good backup will likely fail due to updated checksum errors.
Steps:
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Forced As-Built Rewrite: In Forscan, navigate to Configuration and Programming > Module X Module Configuration (As Built) > Restore All (nothing changes) > Write All > Yes Force Rewrite all current values. Follow the on-screen prompts.
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Module Reset: After the rewrite, go to the Service Functions tab. Under service procedures, select the module(s) you rewrote and perform a module reset action. Follow on-screen instructions.
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GWM Reset: Perform a module reset action on the Gateway Module (GWM) to re-establish communication.
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Clear DTCs: Navigate to the DTC tab in Forscan and reset the Diagnostic Trouble Codes. The U2100:00 should now be cleared.
Resolving U2100:00 with FRDS
The FRDS method simulates replacing the affected module to trigger a rewrite of the original ECU configuration.
Steps:
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Recovery PMI Process: Connect FRDS to the vehicle and start a session. Disconnect FRDS physically but keep the session active. Allow FRDS to fail connection.
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Simulate Module Replacement: Reconnect the VCM and inform FRDS that the original module is unavailable. FRDS will then proceed with the PMI (Pre-Delivery Inspection) process, effectively rewriting the ECU configuration.
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Power Cycle: Disconnect all 12V power sources, including any auxiliary batteries (like those in Pro Power equipped vehicles), for a minute to ensure a complete module reboot. This prevents potential new DTCs related to disconnected ethernet.
After completing either the Forscan or FRDS method, regular updates should resume without issue. Remember, uncleared DTCs can prevent future OTA updates. Addressing them promptly ensures your vehicle receives the latest software and functions optimally.
Conclusion
Ford Dtc U2100:00, while potentially disruptive, can be resolved without necessarily replacing modules. By utilizing either the Forscan or FRDS method outlined above, you can effectively address the “Initial Configuration Not Complete” error and ensure your Ford vehicle is ready for future updates. Always remember to follow the on-screen instructions provided by your chosen diagnostic software.
