OP
OP
Well @George B you really shouldn’t worry. Unless you’ve done a bunch of stuff to your factory wiring like this truck has had done.
I had gone out to work on it yesterday and was reminded I set the factory alarm by hitting the lock button and closing the driver door. I didn’t do it on purpose. So anyway as soon as I unlocked the door and opened it up the horn starts going off. And since the ignition switch wasn’t working right I had no way to turn it off since you have to turn the ignition on to disable the alarm. And that battery…so hard to get to especially when the horn is going off in my face. I was pretty pissed off and bleeding by the time I got it disconnected. That was it for me for the day.
Then of course at about 1:00 in the morning last night I’m laying awake in bed, couldn’t quit thinking about it. As I was going over everything in my head that I had done while replacing that dash, I went over the things I knew were showing symptoms. Number one, the BCM was throwing no codes except no communication with the radio. That was always like that, it’s aftermarket. There was no communication with the cluster though but no DTC. I had also found a blown fuse for the cluster lighting. The ignition switch was turning on the hvac controls so it was at least partially working. I was thinking- is it possible to plug the cluster in backwards? It has an Escalade cluster with a custom harness that I made but I seemed to remember it used to have a latching thing where it plugs in but it didn’t have that this time. Hmmm.
So this morning I pulled the cluster and checked. Yep, it can be plugged in either direction. There’s no tabs. I don’t know why that is, I don’t remember it being like that. So I left it out, hooked up the positive battery post and I heard the sweet sound of chimes. Ahhhhhh. Then the alarm goes off and there’s that horn in my ear. ARRRRGGGHHHH. But this time I turned the ignition on, the alarm turns off, stereo and every turns on. AHA! I started the truck and hit the breaker for the compressors and they came on. It’s back! I just have a few things to put back together including figuring out which direction that cluster plug goes and then mark it so this never happens again. Ahhh the world of custom sh*t. At least it was an easy “fix” if I can even call it that.
