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Code Alarm DLRKP

Door lock relay kit

Item #: 220DLRKP

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Code Alarm's DLRKP Door Lock Relay Kit provides a perfect solution when you're adding a remote door lock/unlock feature to a vehicle that has door lock circuits using 5-wire switching (polarity reversal) or 3-wire switching (both positive-switched and negative-switched). This kit works with Code Alarm products or almost any other security system. Warranty: 1 year.

Note: You will not need this relay if you're using FLCAN or another data interface that controls the door locks in your particular vehicle.

If you know how to use a multimeter and have experience working with your vehicle's electrical system, you should be able to install this car security equipment. If you're unfamiliar with installing car security equipment, please call 1-888-955-6000 to discuss your purchase with one of our Advisors.

Code Alarm DLRKP Reviews

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What's in the box?

Download owner's manual

  • Door lock interface module with integrated harness (terminated by bare wires and a 3-pin connector)
  • 15" Bare wire lead (w/ in-line 20A fuse)
  • Installation Guide

Product Research


Overview: The Code Alarm DLRKP door lock module will allow you to interface with all typical factory electric door lock circuits using 5-wire switching (polarity reversal) and 3-wire switching (both positive-switched and negative-switched). When properly configured for your vehicle, it will control the door lock circuit. The DLRKP can also be used to control aftermarket door lock actuators like the DA-1 (item number 220DA1, sold separately) and DA-2 (item number 220DA2, sold separately).

Mounting Location: The control module is typically mounted under the dashboard, in a central location where you can access the door lock wires. In addition, the included 3-pin interconnect harness will be routed and plugged into the mating connector of the controlling Code Alarm keyless entry module or car alarm.

Systems Requiring an Actuator: Some vehicles (typically Mercedes, BMW, Volkswagen, Volvo, Saab and Subaru) use a central locking system that utilize a mechanical lever in the driver's door which manually moves an electric switch by the key outside or the lever inside, causing all other doors to lock or unlock, depending upon the direction the key is turned or the lever is moved. In these applications, a door lock actuator, such as the Code Alarm DA-1 (item number 220DA1, sold separately), is required. The DA-1 will replicate the action of the outside key or inside lever.

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Customer Q&A

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Why did you buy this?

with reverse polarity locks, this relay kit makes it easy to hook up any alarm [ MICHAEL  Dec 07, 2015 ]

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