In the Land Rover diagnostic hierarchy, the "B" prefix denotes a Body control module issue. Specifically:
Sometimes the system "locks" the circuit after detecting a short, requiring a diagnostic tool like the Gap Diagnostic IIDTool to reset the module. How to Fix the B109C-15 Error land rover b109c15 extra quality
If you own a modern Land Rover (Discovery 5, Range Rover Velar, Range Rover Sport L494, or the new Defender L663), you have likely encountered the cryptic fault code while scanning the vehicle’s Central Junction Box (CJB) or Body Control Module (BCM). For many owners and technicians, this code triggers immediate frustration, leading to unnecessary parts swapping and recurring labor costs. In the Land Rover diagnostic hierarchy, the "B"
Mention if you have recently worked on the door cards or the overhead console, as this code is often logged by the . Specific Questions: For many owners and technicians, this code triggers
There are several potential causes of the B109C15 code, including:
After physical repairs: