hi guys
mi woman's 2001 A4 has the same problem, the lights and sounds etc
i did check with the VAGCOM and there was no answer from the ABS module (= its dead)

code 18014
the new module (only the module) bought at Audi (Montreal Laval) cost me 750 dolars Canadian tax included, i'm ready to replace it, but i will leave disconnected until i can get an appointment with the Audi guys to flash the module o program it with their zillion dollar computers

but, im wondering if it can be done using VAGCOM, i would dare to try it myself but only after i'm sure about the procedures.
i hope its helpful somehow
greetings
Fern