AudiForums.com - p0411 circuit relay problem 2002 a4

Hi all, hoping for some help for myself a novas. I just got audi a4 and was trying to see the different features on the cruise control when all of a sudden with 4 hands hitting things (signal, cruise and hazards) a relay ticking noise started from the dash. Then the check engine light came on with the p0411 code. Combo of the relay noise and the P0411 code, I believe what’s wrong is circuit relay is defective. Where is the circuit relay, in layman’s (laywoman’s) terms? All the posts on the p0411 jump straight the secondary air problem, but I think for me it might be step one on the error, “circuit relay is defective or fuse open.” I looked at my fuses by the door, but I don’t see anything other than fuses there.

Where’s the circuit relay and how do I replace it? Thanks!