What does this code mean?
The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.
A code identifies a detected condition, not a part that must automatically be replaced.
Manufacturer communications
4Original wording in English
MAZDA
Reported code forms B144F:11 B144F:13
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…
FORD, LINCOLN
Reported code forms B144F:13 B144F:19
Some 2025 Expedition/Navigator vehicles may exhibit diagnostic trouble codes (DTCs) B144F:19, B144F:13, B1557:19, B1557:31 and/or B15E8:19 in the rear gate trunk module (RGTM) when a diagnostic self-test is performed.…
FORD, LINCOLN
Reported code forms B144F B144F:79
Some 2019-2020 Edge/Nautilus vehicles may exhibit an inoperative power liftgate with diagnostic trouble code (DTC) B144F:79 stored in the rear gate trunk module (RGTM). This may be due to the calibration of the RGTM. To…
FORD, LINCOLN
Reported code forms B144F:79
Some 2019 Edge/Nautilus vehicles built on or before 07-Mar-2019 may exhibit an inoperative power liftgate with diagnostic trouble code (DTC) B144F:79 stored in the rear gate trunk module (RGTM). This may be due to the…
Check vehicle applicability
10A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
Before replacing a part
Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.