2008 C6 driver door window issues
Safety Car
Joined: Aug 2017
Posts: 4,929
Likes: 2,340
From: Etobicoke (Toronto) Ontario
I’ll give you an opinion and that’s all it is. Since you already changed the driver door control module and the problem persists, the odds are that it’s not the module. If this was a common problem with the module, there’d be more internet search hits on the problem. The module doesn’t act on its own. From what I read, it gets signals from the BCM in order to do something, and there’s also interaction between the RCDLR and the BCM when door pads are pressed, the interior door release button is pressed and so on. I’d say you’d need to plug a scanner into the OBD2 port that can monitor signals between those devices to see what is actually happening when the malfunction occurs. Throwing expensive and hard to source parts at the problem is not optimum. Just my .02 worth.
Thread Starter
Cruising
Joined: Jul 2025
Posts: 14
Likes: 2
I’ll give you an opinion and that’s all it is. Since you already changed the driver door control module and the problem persists, the odds are that it’s not the module. If this was a common problem with the module, there’d be more internet search hits on the problem. The module doesn’t act on its own. From what I read, it gets signals from the BCM in order to do something, and there’s also interaction between the RCDLR and the BCM when door pads are pressed, the interior door release button is pressed and so on. I’d say you’d need to plug a scanner into the OBD2 port that can monitor signals between those devices to see what is actually happening when the malfunction occurs. Throwing expensive and hard to source parts at the problem is not optimum. Just my .02 worth.
Thread Starter
Cruising
Joined: Jul 2025
Posts: 14
Likes: 2
Hi gents, for those of you that might be intersted in that status of my issue, it's solved...In my case it was the outside door opener, swapped with the one on the passanger side and found out that way..Yes I should indeed have done this a long time ago, knowing all I learned along the way..But at least I leraned a lot in the process, and hopefully it can help other C6 owners in here if the should ever get the same issue.
Thanks a lot for your replies and help guys, much appreciated.
Thanks a lot for your replies and help guys, much appreciated.
