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Hey everyone. Is there a way to program a new driver door module for the 07 Trailblazer without going to a dealership? Is there a way to order one pre-programmed from anywhere except for a junkyard? If the drivers door window works you probably have a open in the serial data line.i have found the data line corroded under the drivers seat causing this problem on other vehicles.you need to check for continuity on the data line between the driver door module and either one of the other door modules.the data line is tan with a white stripe.if.
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edited July 2015 in Chevrolet
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Hello i could really use some of your guys help. I have a 2003 4 door tahoe and i have a weired sitution going on. The drivers side window/lock switch does not work. Only on the drivers side that i can not get the locks to work, all 4 windows, or the outside mirriors, But if i go to the other doors and try to use the locks or window controls they work fine. I purcheased a new drivers side window/lock control and that did not solve the problem. I have tryed to check every fuse under the hood and the one on the drivers side under the dash. this is really driving me nuts in to why i can not get these to work. Any of you help would be so very much appericated.
See Also Why Do Three of My Windows Not Work? Driver's Side Window Stopped Working
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In the field of automotive electronics, Door Control Unit (DCU) is a generic term for an embedded system that controls a number of electrical systems associated with an advanced motor vehicle. A modern motor vehicle contains of a number of ECUs (Electronic Control Units), and the Door Control Unit (DCU) is a minor one amongst them.
Driver Door Module Pinout
The Door Control Unit is responsible for controlling and monitoring various electronic accessories in a vehicle's door. Since most of the vehicles have more than one door, DCUs may be present in each door separately, or a single centralised one provided. A DCU associated with the driver's door has some additional functionalities. This additional features are the result of complex functions like locking, driver door switch pad, child lock switches, etc., which are associated with the driver's door. In most of the cases driver door module acts as a master and others act as slaves in communication protocols.
![]() Features controlled by Door Control Units[edit]
In some advanced motor vehicles, luxury features like puddle lamps and BLIS (Blind spot Indicator System) are also supported by DCUs.
Volvo Xc90 Driver Door Module
Retrieved from 'https://en.wikipedia.org/w/index.php?title=Door_control_unit&oldid=902155785'
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