Took out instrument cluster, now no cruise control or ABS!

[zeronero]

Hello,

Recently I took out the instrument cluster in my 1992 400E to replace the lights in it and now I have no cruise control or ABS.

When I took the cluster out I left the battery connected and had to drive for about a week with it out as well. I tried to use the cruise control when the cluster was removed and it didn't work, I figured that it used the speed from the cluster and that's why it didn't work, thinking it would work once the cluster would be installed, but nope. I've checked the fuses and they're all good. I've heard the cruise control amp goes out on these cars, so maybe I blew it out, but I also heard that the V8 model 124's like mine use a different system.

As for the ABS, the light comes on when I apply the brakes, and stays on until the car is shut off and restarted, but then comes on once the brakes are touched again, so it's pretty much always on. When I was driving the car with the cluster out I was driving in the rain and slammed on the brakes a couple of time, I couldn't feel the ABS go off, so I know it's not working.

I really don't know what the issue could be, if both problems are directly related to me driving the car with the cluster removed, possibly blowing the two systems out, then that's a really stupid decision I made.

If anyone can help me with this or suggest anything to find the cause please let me know, thanks in advance!