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Clearing DTC U2300 on Ford/Mazda with a Central Configuration reset

Code U2300 on Ford/Mazda vehicles points to a central configuration problem in the module. It is cured by setting the module back to the "not configured" state and letting it relearn the central configuration data.

Procedure

1. Connect the AVDI and open the Ford/Mazda diagnostics.
2. Open the ABS module and confirm that DTC U2300 is actually stored in the fault memory.
3. Enter the "Service Functions" menu.
4. Enter the "Allow Central Configuration data parameter (CDP) Learning" menu.
5. Run the "Reset ECU Central Configuration State/Data to Not Configured" function.
6. When it finishes, cycle the ignition off and on, then read the module fault memory again to confirm U2300 is gone.

Reference screenshots