I hate to necro a relatively old thread, but you're referring to the DRL warning canceler right? Based on this thread, I had DD send me one canceler since my high beams were clicking during the day when switch was in auto. Installed that this weekend and no luck, still got no lights when clicked it to auto during the day.
I then decided to install it on the low beams and on the non-battery side for fun, but none of that worked either. However, now I'm noticing after I removed the canceler completely that the clicking no longer happens from the relay during the day. The lights still stay off when in the auto position, but it doesn't click anymore. Weird, and since you just put it back on the second time and it worked I guess I'll play with it some tonight... I'm open to other ideas though!