2001 caravan single wire lock relay

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=45555
Printed Date: December 18, 2025 at 2:26 PM

Topic: 2001 caravan single wire lock relay

Posted By: davidnc
Subject: 2001 caravan single wire lock relay
Date Posted: December 19, 2004 at 8:57 PM

I need to hook up relays for a 2001 caravan single wire lock system. Below is a link

https://www.designtech-intl.com/Content/techsupport/documents/section04/note228.pdf

to a relay solution for a tranistorized door lock outputs like mine (Prestige aps25H), but for a 1996-2000 caravan. I know that the 2001 resistors are the same, but is the rest of the wiring the same as the diagram. The 2001 is a negative ground pulse and the top digram infers that the 1996-2000 is also a ground, but how does this solution pictured provide the ground?

I'd like to be sure the wiring is correct before hooking it up.

Replies:

Posted By: davidnc
Date Posted: December 19, 2004 at 9:44 PM

I may have answered my own question. Best I can tell, the 2001-2004 caravan has the negative multiplex lock system, whereas the 1996-2000 is positive multiplexed. This being the case, relay pins 86 should be grounded rather than attached to +12v.

Posted By: auex
Date Posted: December 19, 2004 at 10:01 PM

davidnc wrote:

I may have answered my own question. Best I can tell, the 2001-2004 caravan has the negative multiplex lock system, whereas the 1996-2000 is positive multiplexed. This being the case, relay pins 86 should be grounded rather than attached to +12v.

Just change pin 87 to ground.

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