Driver's door button electrical system thinks door is open when closed, window cracke
Thread Starter
Instructor
Joined: May 2010
Posts: 122
Likes: 3
From: Ohio
Driver's door button electrical system thinks door is open when closed, window cracke
I've been having intermittent issues on my 2005 C6 Z51 with the driver's side door electrical mechanism..
The problem happens most often when it rains, sometimes when it is dry.
What happens is I close the door, it doesn't think it is shut, leaves the window crack, and won't let me open it from the inside as it thinks it is already opened.
Is this a common issue with a easy solution?
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BTW: My driver's control for the passenger window also doesn't work, all cause from rain getting in the car.
The problem happens most often when it rains, sometimes when it is dry.
What happens is I close the door, it doesn't think it is shut, leaves the window crack, and won't let me open it from the inside as it thinks it is already opened.
Is this a common issue with a easy solution?
----
BTW: My driver's control for the passenger window also doesn't work, all cause from rain getting in the car.
Team Owner
Joined: Sep 2005
Posts: 20,352
Likes: 568
From: Ventura County, Calif
Can't be sure but at least a fairly easy thing to check is the door entry pad switch. It commonly corrodes or just gets dirty and causes all kinds of weird problems. Here's a DIY, only takes about 10 minutes. Good luck. 
http://forums.corvetteforum.com/c6-c...-pads-too.html
And be aware it's possible for some little things to actually break inside. Not common though. Just for info:
http://forums.corvetteforum.com/c6-c...oor-issue.html
http://forums.corvetteforum.com/c6-c...-pads-too.html
And be aware it's possible for some little things to actually break inside. Not common though. Just for info:
http://forums.corvetteforum.com/c6-c...oor-issue.html
Tech Contributor
Joined: Oct 1999
Posts: 41,066
Likes: 9,829
From: Charlotte, NC (formerly Endicott, NY)
I doubt it is the door entry pad. When this happened to my car it was the door module inside the door. Started just like yours is now with the window not closing and having to use the emergency pulls to get into and out of the car and then the window started oscillating up and down and couldn't be stopped unless the door was left open or the battery was disconnected.
From the service manual:
Driver Power Door Latch Unlatch Operation
The remote control door lock receiver (RCDLR), driver door module (DDM) and body control module (BCM) control the output functions of the driver power door latch. These output functions allow the RCDLR and BCM to command the driver power door latch motor to Unlatch.
When the RCDLR receives an input from either the driver exterior door handle switch or driver interior door handle switch, it checks the Lock/Unlock status of the driver door. If the status of the driver door is Unlock, the RCDLR applies the ground for the driver power door latch.
At the same time that the RCDLR is receiving its input, the DDM is also receiving the same input. When the DDM receives its input from the door handle switch, it checks the window indexing status of the driver door. If the window is below the index point, it sends a serial data message to the BCM to apply voltage for the driver power door latch. If the window is above the index point, it will first index the window, then send a serial data message to the BCM to apply voltage for the driver power door latch. For a better description of window indexing, refer to Power Windows Description and Operation .
Bill
From the service manual:
Driver Power Door Latch Unlatch Operation
The remote control door lock receiver (RCDLR), driver door module (DDM) and body control module (BCM) control the output functions of the driver power door latch. These output functions allow the RCDLR and BCM to command the driver power door latch motor to Unlatch.
When the RCDLR receives an input from either the driver exterior door handle switch or driver interior door handle switch, it checks the Lock/Unlock status of the driver door. If the status of the driver door is Unlock, the RCDLR applies the ground for the driver power door latch.
At the same time that the RCDLR is receiving its input, the DDM is also receiving the same input. When the DDM receives its input from the door handle switch, it checks the window indexing status of the driver door. If the window is below the index point, it sends a serial data message to the BCM to apply voltage for the driver power door latch. If the window is above the index point, it will first index the window, then send a serial data message to the BCM to apply voltage for the driver power door latch. For a better description of window indexing, refer to Power Windows Description and Operation .
Bill
Last edited by Bill Dearborn; Jun 11, 2011 at 01:16 AM.
Advanced
Joined: Feb 2009
Posts: 68
Likes: 0
C6 05
Driver door will not unlock/open at times from outside or inside.
Passenger side is working majority of the time.
Just cleaned drivers door pad and it did not improve operation, then traded door pads and driver door still not operating.
Is there a test for actuator? I do hear a clicking over near the start button when pressing the door open button but door is not opening. Could it be bad electrical contacts in door?
I did have the driver door window motor replaced some time ago.
Thanks for input.
Driver door will not unlock/open at times from outside or inside.
Passenger side is working majority of the time.
Just cleaned drivers door pad and it did not improve operation, then traded door pads and driver door still not operating.
Is there a test for actuator? I do hear a clicking over near the start button when pressing the door open button but door is not opening. Could it be bad electrical contacts in door?
I did have the driver door window motor replaced some time ago.
Thanks for input.
