Need Help! Dealer messed up Homelink Wiring [Archive] - Diesel Place : Chevrolet and GMC Diesel Truck Forums

: Need Help! Dealer messed up Homelink Wiring


4Fielders
08-30-2005, 10:47 PM
I need help! I installed an overhead console with Homelink from a Suburban in my truck a couple of months ago. I wasn't happy with the "turn on the map light first" option to get power to the transmitter and figured out a way to keep the power on to it. Here's my post on how I did it: http://dieselplace.com/forum/showthread.php?t=36893&highlight=homelink

I took my truck in yesterday to have my sagging headliner replaced. I figure the dealer had to unhook the connections to the console and dome light as part of the install. When my wife picked it up and drove it home, she called me and asked what she had to do to get the homelink to work. The buttons had no power. I told her to turn on a map light and try it. Sure enough, homelink worked. I called the service manager and asked if they had the truck hooked up to the computer. He said no.

When I got home, I first checked the changes I had made to the HDLNR 1 12-way harness under the dash. Nothing had been changed, the change I made was still in place. I turned on a map light and one of the dome courtesy lights, shut the door, and set my watch. In ten minutes, the computer or whatever had shut off the power to the lights. Interestingly, whenever I opened the door, the two lights came back on. When I was testing circuits several months ago (before my change in wiring) I recall that when the computer cut power to the map lights, they were off for good until you pushed the button again.

Do any of you have any ideas as to what may have happened? If the battery was disconnected, could this have caused the change? Did something make the computer "relearn" the circuits and turn back on the battery rundown protection? I really don't trust the dealer to figure out the problem. I took it in to have a hot wire run to the homelink before I figured it out myself. They said it was fixed but was still on the rundown circuit. I'm afraid it is up to me (with your help) to figure this out.