B144E on 2020-2022 Lincoln Aviator — Position Sensor 2 of Tailgate/Liftgate
1 vehicles · 1 makes
Most Reported On
B144E is an OBD-II diagnostic trouble code meaning “Position Sensor 2 of Tailgate/Liftgate.” A Ford/Lincoln-specific body code stored by the power liftgate system (rear gate trunk module, RGTM, or liftgate control module). It reports a fault in the second position sensor that tracks how far the tailgate/liftgate has traveled, which on many of these vehicles is built into the power strut or motor assembly. Typical symptoms are a liftgate that only opens partway, stops or reverses on its own, refuses to run in power mode, or a false 'liftgate ajar' indication that can also trigger the anti-theft alarm. Ford issued a service message for 2020 Explorer and Aviator models where B144E — along with B144D, B1555, and B1556 — was caused by RGTM software improperly sensing the liftgate ajar, corrected by reprogramming rather than parts. This code is most commonly reported on 2020-2022 Lincoln Aviator.
Common Causes
Diagnostic Tools
B144E does not use the standard P/B/C/U prefix. It may be a manufacturer-specific code, so verify that a scanner supports your exact year, model and module before buying.
FAQ
What does B144E mean?
B144E stands for "Position Sensor 2 of Tailgate/Liftgate." A Ford/Lincoln-specific body code stored by the power liftgate system (rear gate trunk module, RGTM, or liftgate control module). It reports a fault in the second position sensor that tracks how far the tailgate/liftgate has traveled, which on many of these vehicles is built into the power strut or motor assembly. Typical symptoms are a liftgate that only opens partway, stops or reverses on its own, refuses to run in power mode, or a false 'liftgate ajar' indication that can also trigger the anti-theft alarm. Ford issued a service message for 2020 Explorer and Aviator models where B144E — along with B144D, B1555, and B1556 — was caused by RGTM software improperly sensing the liftgate ajar, corrected by reprogramming rather than parts.
What are the most common causes of B144E?
The most common causes of B144E are: Failed position sensor inside the power liftgate strut or motor assembly (assembly replacement), Outdated rear gate trunk module (RGTM) software falsely sensing the liftgate ajar — reprogramming is the first step on affected 2020 Explorer/Aviator builds, Damaged or chafed wiring in the liftgate harness where it flexes at the hinge, Corroded or loose strut/motor connector, often from water intrusion, Failed liftgate motor or drive unit logged alongside the sensor code, Faulty rear gate trunk module / liftgate control module. The specific cause varies by vehicle.
How much does it cost to fix B144E?
Repair costs vary widely depending on the root cause and vehicle.
Which vehicles are affected by B144E?
Au7o has documented B144E across 1 vehicle models from 1 manufacturers: Lincoln.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.