Reference meaning
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.
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A 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.
Scan worksheet →Manufacturer communications
4Original wording in English
MAZDA
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 (PL…
FORD, LINCOLN
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. If no other symptoms, DTCs, or issues are identified, no further action is required. Replacement and/or reprogra…
FORD, LINCOLN
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 resolve the concern, reprogram the RGTM using the latest software level of the appropriate Ford diagnostic sca…
FORD, LINCOLN
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 calibration of the RGTM. To resolve the concern, reprogram the RGTM using the latest software level of the appro…
Check vehicle applicability
10A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Ford | EDGE ↗ | 2020 |
| Ford | EDGE ↗ | 2019 |
| Ford | EXPEDITION ↗ | 2025 |
| Lincoln | NAUTILUS ↗ | 2020 |
| Lincoln | NAUTILUS ↗ | 2019 |
| Lincoln | NAVIGATOR ↗ | 2025 |
| Mazda | CX-5 ↗ | 2025 |
| Mazda | CX-5 ↗ | 2024 |
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.