u/KillianRebocho

As the title says, my power windows are gone as well as the central locking, the beep when u leave the lights on after turning off the car, and the lights when u open the doors and after some hours battery is flat. Checked all the fuses, all good. Stuck an obd reader and the CCM was throwing codes/failing to read, ordered a new one with the same ref, problems still persist what could it be??