I have a 2013 BMW 328i (f30). Due to the notorious tail light issues, I recently changed the driver side connector, light housing, and changed the light bulbs to led bulbs. Now I have this annoying problem. When the brake is not on, the right brake light is on but the left brake light is not (see Pic 1). I don't know whether the right brake light is not supposed to be on or the left brake light is supposed to be on, though I believe the former. When the brake is on, all lights seem to work fine (see pic 2).

I did not code the bulbs after I switch to LED; perhaps that's the reason. I am thinking of buying OBDLink CX. I would appreciate it if anyone could tell me what is causing my problem and detailed steps on how to code the LED bulbs with OBDLink CX and BimmerCode. Thanks in advance.

pic 1: https://ibb.co/m6GJd80

pic 2: https://ibb.co/XXLGKDv