[kukata_83]

Hello,
can anyone help with this problem

I have a 2010 Q5 2.0 TDI with a 0B5 box. Car on start up gets "handbrake fault", ESP error on dashboard display. The box goes into neutral and the car does not move. The error goes away after a few seconds or minutes, sometimes it comes back repeatedly after that. When it goes away, I get the "transmission fault" error for a short while before it's fine again. Looks like my TCU is losing CANBUS connection. I changed the gear computer, removed the security component, checked the cable to the box and . I also checked the ECU box in the upper right corner of the engine bay and both sides of the trunk where the electronics are for any visible damage. I get the same errors as with the original computer.