Some 2022 F-150 vehicles not equipped with a trailer brake control module (TBM) may exhibit diagnostic trouble code (DTC) U0137 in the anti-lock brake system (ABS) module. This may be due to ABS module software. If ABS module DTC U0137 is present and the vehicle is not equipped with a trailer brake module, the DTC should be ignored. If the vehicle is equipped with a TBM and a U0137 is present in the ABS, continue diagnostics in the Workshop Manual (WSM), Section 206-10.
