2003 Dodge Ram Auto Unlock

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=22412
Printed Date: May 08, 2025 at 7:05 PM

Topic: 2003 Dodge Ram Auto Unlock

Posted By: tanman
Subject: 2003 Dodge Ram Auto Unlock
Date Posted: December 05, 2003 at 7:53 PM

I have successfully installed a remote start and Remote Keyless Entry system on a 2003 Dodge Ram 1500. I am wanting to add another relay to auto unlock doors when automatic transmission is placed in Park position. Can anyone tell me the correct wire and polarity to tap into for my relay circuit? It would need to be wired in such a way that it would generate a single pulse, so the relay would not always be activated...any ideas?

Thanks!

Jeff Sepulveda

Replies:

Posted By: daniel2002p
Date Posted: December 05, 2003 at 8:44 PM

you neee to find the wire that shows 12v when the truck is in park (behind intrument cluster) and get a pulsing relay.

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2005 Toyota Corolla S
1.8L VVT-i I-4
Always double check your wires with a DMM!!!
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Posted By: Supertom
Date Posted: December 06, 2003 at 10:03 AM

What diagram did you use for the 2003 Dodge? Is it the same as the 2002? Does this truck have a anti-theft system?

Posted By: whiteshack
Date Posted: December 06, 2003 at 4:47 PM

what you can try

12v brake trigger to 85

86 to park wire behind cluster invert to neg.

30 single pulse generator output

87 to neg of alm unlock to door locks

this circuit is active when brake and park wire is used. good luck

you will also need to trigger the single pulse with the brake wire and park wire also

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mecp certified installer

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