Land Rover B1d9f-11 Jun 2026

While this code can appear on any JLR product with advanced ambient lighting, it is most commonly reported on:

Using Land Rover-approved diagnostic equipment, clear the DTCs and perform a road test. If the code returns immediately, it is a "hard fault" requiring physical inspection. land rover b1d9f-11

In plain English, indicates that the Body Control Module (BCM) has detected an electrical malfunction in the driver’s door latch circuit. Specifically, the module is not receiving the correct signal indicating that the door is closed, locked, or both, due to a short to ground or an open circuit within the latch assembly itself. While this code can appear on any JLR

A “short to ground” means that the positive wire carrying power to an LED has rubbed through its insulation and is touching the metal body of the car. Here are the most common physical causes: Specifically, the module is not receiving the correct

In rare cases, the code persists even after the physical short is repaired. Perform a :