p9015 no signal s20/1 window and mirror adjustment switch on switching bus
Thread Starter
MBWorld Fanatic!
Joined: Jun 2013
Posts: 1,517
Likes: 95
From: NZ
2004 E55 AMG, 2006 CLS63, 2004 ML55, 2014 E350 sport
p9015 no signal s20/1 window and mirror adjustment switch on switching bus
Both FRONT window and mirrow switches just stopped working on me while I was working on the mirror indicators and messing with a few things with my scanner.
I can use the scanner to move the windows and door mirrors so theres 100% power to them.
Im assuming my only option is to go ahead and order both the drivers and passenger door switches? I just find it hard to believe they failed at almost the same time and it makes me wonder?
The passenger door initially wasnt working on the passenger window and mirror from the drivers controls. I could still select the drivers mirror and the button would light up with the red led..... but then the entire drivers switch seemed to drop out and not work at all when I continued to fiddle with it.... Then I realized the passenger switch didnt work either but not sure exactly when that went out pretty sure it was working tho.
The two rear window switches still work fine.
I can use the scanner to move the windows and door mirrors so theres 100% power to them.
Im assuming my only option is to go ahead and order both the drivers and passenger door switches? I just find it hard to believe they failed at almost the same time and it makes me wonder?
The passenger door initially wasnt working on the passenger window and mirror from the drivers controls. I could still select the drivers mirror and the button would light up with the red led..... but then the entire drivers switch seemed to drop out and not work at all when I continued to fiddle with it.... Then I realized the passenger switch didnt work either but not sure exactly when that went out pretty sure it was working tho.
The two rear window switches still work fine.
Last edited by austingtir; Jan 4, 2023 at 03:01 AM.
Thread Starter
MBWorld Fanatic!
Joined: Jun 2013
Posts: 1,517
Likes: 95
From: NZ
2004 E55 AMG, 2006 CLS63, 2004 ML55, 2014 E350 sport
I forgot what its called but I reprogrammed or reset the drivers door module in star about 20 times (because it was a bit dicky and wouldnt take it) and eventually it took it and everything started working again.
So lesson here is if you've got the time dont just give up on these benz modules if they wont take or communicate it the first time.
So lesson here is if you've got the time dont just give up on these benz modules if they wont take or communicate it the first time.
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Joined: Sep 2023
Posts: 6
Likes: 0
From: Rockwall, Texas USA
2010 Mercedes Benz GLK350 2WD Base model.
Hello there! I'm having similar problem on my 2010 glk350, it only happens with the front passenger door window and mirror, but window only work from the passenger door and mirror doesn't work at all although the red led light comes on when I select that mirror. I already tried a different door control module for passenger door and same thing happened. What's the procedure for resetting/reprogramming the driver's door control module? Any help is greatly appreciated!
