door locks, 1998 Dodge Ram

Printed From: the12volt.com
Forum Name: Car Security and Convenience
Forum Discription: Car Alarms, Keyless Entries, Remote Starters, Immobilizer Bypasses, Sensors, Door Locks, Window Modules, Heated Mirrors, Heated Seats, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=79287
Printed Date: May 14, 2025 at 1:54 PM

Topic: door locks, 1998 Dodge Ram

Posted By: wfields
Subject: door locks, 1998 Dodge Ram
Date Posted: June 18, 2006 at 5:31 PM

Need help with 1998 Dodge Ram door locks. Finished install of new alrm system.

The truck has a 3 wire harness for the door locks. Both the lock and unlock wire register pos. when at rest and negative when active. I tapped into these leads with my alarm leads, nothing happens.

Do I need a relay, or is a relay only required for a 2 step function?

Willie

Replies:

Posted By: Twelvoltz
Date Posted: June 18, 2006 at 6:39 PM

If your truck came with keyless entry from the factory then you need a positive trigger for lock and a 5-wire for unlock. This requires the use of at least one relay depending on the make and model of the alarm system you are installing, two relays if your system does not provide a strong enough positive trigger output. You can find the information for the 98 Ram here. The door lock relay wiring diagrams can be found here on the12volt.com

Posted By: dea,can
Date Posted: June 19, 2006 at 3:01 AM

NOTE *1 Vehicles WITHOUT a FACTORY KEYLESS use a TYPE C Door Locking System and Vehicles WITH a FACTORY KEYLESS use a Chrysler 3/5 Wire Door Lock System, to connect, See DIAGRAM. "EXTRA NOTE" on some KEYLESS ENTRY SYSTEMS, look for a ORANGE / BLACK and a PINK/BLACK these wires may work as a TYPE A Door Locking system.

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dragon

Posted By: dea,can
Date Posted: June 19, 2006 at 3:31 AM

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dragon

Posted By: dea,can
Date Posted: June 19, 2006 at 3:44 AM

posted_image

If u have adobe zoom in if u cant see good. hope this all helps

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dragon

Posted By: wfields
Date Posted: June 19, 2006 at 4:38 PM

Thanks Dragon , I think I have it figured out now.

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