This article does not cite any sources . Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. Find sources:  "Door control unit"  –  news · newspapers · books · scholar · JSTOR (September 2014) ( Learn how and when to remove this message )

The topic of this article may not meet Wikipedia's general notability guideline . Please help to demonstrate the notability of the topic by citing reliable secondary sources that are independent of the topic and provide significant coverage of it beyond a mere trivial mention. If notability cannot be shown, the article is likely to be merged, redirected, or deleted. Find sources:  "Door control unit"  –  news · newspapers · books · scholar · JSTOR (August 2025) ( Learn how and when to remove this message )

In automotive electronics, a door control unit (DCU) is an embedded system that manages electrical functions associated with a vehicle's doors. Modern vehicles contain multiple electronic control units (ECUs), among which the DCU is a secondary component. ^{[1] [2]}

A DCU controls and monitors electronic accessories located in the door. Vehicles typically have multiple doors, so DCUs may be installed in each door individually or implemented as a centralized system. The unit associated with the driver's door often includes additional functions, such as locking controls, switch pads and child lock features. In most configurations, the driver door module acts as the master, with other modules operating as slaves.

Functions

• Manual and automatic window operation
• Global window open–close functions
• Child lock mechanisms
• Mirror adjustment and folding
• Door locking and unlocking (latch control)

Some vehicles also integrate features such as puddle lamps and blind spot indicator systems (BLIS) into the DCU.

References