2010 mercedes-benz GL450 w/ xenon adaptive h/l's / led park-signal light - cannot communicate with the left or right headlamp modules. replaced right headlamp module module (water damage) and need to code to get led's working. In programming, autel shows left anf right lamp modules, but will not communicat with them??

Tags: maxisys

 I should say, the actuation module, not control module. I can communicate with the main control module