’90 240sx door lock

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=99496
Printed Date: September 09, 2025 at 12:04 PM

Topic: ’90 240sx door lock

Posted By: scilla712
Subject: ’90 240sx door lock
Date Posted: November 29, 2007 at 7:48 PM

Hi. I'm new in the alarm installation world.

I have just installed a Clifford Matrix rsx 3.5 in my 1990 240sx. I have searched numerous topics as well as the ones on this site and am having trouble getting my doors hooked up. I have the wires in site (ORANGE / black and ORANGE / blue) in the kick panel. I have the two wires for lock/unlock from the wire harness from the alarm module. I have read about hooking up relays as well as hooking the alarm wires directly to the car door wires in the kick panel. So I am having trouble understanding which I should do. Any help would be appreciated.

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scilla712

Replies:

Posted By: mikvot
Date Posted: November 29, 2007 at 8:41 PM

You can go directly to the wires without relays. Just be sure that you TEST the lock and unlock wire on the vehicle to verify they are the correct ones.

This is one of the three known systems Nissan used in early production. To operate, open(cut) the org/blk wire and the doors will lock, pulse the same wire to ground and the doors unlock. The other two systems are negative pulse (ORANGE / black for lock and ORANGE / blue for unlock both at the door lock timer in the passenger kick behind the ecm.) and non-centralized - add actuator in drivers door.

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Posted By: scilla712
Date Posted: November 30, 2007 at 1:46 PM

thanks a lot...i'll let you know how it goes

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scilla712

Posted By: scilla712
Date Posted: November 30, 2007 at 2:30 PM

ok, i went straight to the wires for the door in the kick panel

Green wire to ORANGE / black

Blue wire to ORANGE / blue

For some reason, when i attach the blue wire, it unlocks. Then the door locks will not lock anymore until I take the wire off. Please advise.

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scilla712

Posted By: enice
Date Posted: November 30, 2007 at 2:35 PM

have the doors unlocked and cut the ORANGE / black wire. If the doors lock then its the one wire system that needs to have the ORANGE / black wire open when locking and the ORANGE / black wire closed that gets pulsed ground to unlock, BTW, did you test the wires with a meter and saw if it gave you a reading??

Posted By: scilla712
Date Posted: November 30, 2007 at 2:40 PM

no, i just used the wire guide from this site

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scilla712

Posted By: enice
Date Posted: November 30, 2007 at 3:00 PM

You must test these wires before doing anything......there may be more that one ORANGE / black wire and more then one orange blue wire...use a meter.

Posted By: scilla712
Date Posted: December 04, 2007 at 5:35 AM

i tested each wire and each give a reading when locked and unlocked. the ORANGE / black locks and the ORANGE / blue unlocks. So now only the blue wire from the alarm when touched to the respective wire will lock or unlock.

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scilla712

Posted By: scilla712
Date Posted: December 05, 2007 at 9:17 PM

any help would be appreciated

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scilla712