NorthernABTDi
Member
Have an 04 jetta Tdi BEW/PD. Currently having my traction control, Abs and the red flashing brake reservoir level light on. These lights are on most of the time, even as soon as I start my car. Occasionally they will turn off for awhile but will come back on, especially after hitting a bump. Code reader says its P0600 which is a Serial Communication link issue. VAG com says it can't link to the brake module but it links to other modules just fine. I hooked up a known good brake module but it still has the same issues. VAG Com couldn't link to it either. Any ideas on what to look into? Thanks.