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B144F on the 2023 Mazda CX-5

The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.

This code is specific to a manufacturer and is not described here. Its meaning is in the manufacturer's service information.

Bulletins for this model year that name B144F
09-024-262026-09-02. Service bulletin. DESCRIPTION Some vehicles may exhibit a condition in which a warning buzzer (error sound) is heard, and the power liftgate (PLG) does not open or close automatically. When these symptoms happen, DTCs B144F:11 or B144F:13 may be stored. B144F:11 Power liftgate (PLG) drive unit motor circuit malfunction B144F:13 Power liftgate (PLG) drive unit motor circuit malfunction NOTE: The liftgate can be opened or closed manually, though effort may be higher without the motor assist. Due to improper assembly of the brush spring within the PLG unit motor, the contact pressure of the brush decreases, resulting in poor continuity. As a result, sufficient current may not be supplied to the motor. The manufacturing process has been improved to ensure proper positioning of the spring during assembly. REPAIR PROCEDURE Replace the power liftgate drive unit according to the instructions on MGSS POWER LIFTGATE (PLG) DRIVE UNIT REMOVAL/INSTALLATION.

1 on file from NHTSA, as of 2026-10-19. See them in the bulletin list. A bulletin lists model years: read the document for which vehicles it concerns.