Diagnosing and repairing the B109C15 code requires specialized equipment and expertise. If you're experiencing this issue, it's recommended that you visit a qualified Land Rover dealership or repair shop. They will use specialized diagnostic tools to identify the root cause of the problem and perform any necessary repairs.
can trigger "phantom" B-series fault codes across multiple modules. Component Replacement:
I plugged the logo unit in to the drivers side front door, no illumination ! Swapped back to the original lamp, no illumination! (