2004 Altima 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=60667
Printed Date: July 14, 2025 at 11:58 AM

Topic: 2004 Altima unlock

Posted By: CutDog504
Subject: 2004 Altima unlock
Date Posted: August 04, 2005 at 11:02 AM

Does a 2004 Altima need a double unlock pulse?? If so, how can I obtain a double pulse from an alarm with only a single pulse output??

Replies:

Posted By: profuse007
Date Posted: August 04, 2005 at 11:13 AM

no dbl pulse, just single.

brown - BCM by fuse box, pin 44

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Houston,TX
"The two most common elements in the universe are H+ and stupidity" (Ellison).

Posted By: CutDog504
Date Posted: August 04, 2005 at 11:19 AM

Because some wiring diagrams I've seen say that if it has a factory alarm then it is double pulse.

Posted By: profuse007
Date Posted: August 04, 2005 at 12:44 PM

NISSAN, ALTIMA, 2004, Power Unlock

These wires are only available on vehicles with left front only power window anti-pinch system. On vehicles with left AND right front power window anti-pinch system, use the factory alarm arm and disarm wires for door locks.

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Houston,TX
"The two most common elements in the universe are H+ and stupidity" (Ellison).

Posted By: CutDog504
Date Posted: August 04, 2005 at 2:24 PM

This is what I found on this site under vehicle wiring off to the left of the screen. Power Lock:
PINK (-)
PIN # AT BCM NEAR FUSE BOX

Power Unlock:
BROWN (-)
PIN # AT BCM NEAR FUSE BOX *****

. ***** Unlock Requires Double Pulse. See Note #231. Also See Note #201 Negative Trigger Door Locks.

Is this info wrong?? Because I got a wiring diagram from somewhere else and it says nothing about double pulse or about the power windows that profuse mentioned. Now I'm confused posted_image

Posted By: CutDog504
Date Posted: August 04, 2005 at 2:26 PM

Or is it that a 2004 does NOT require a double pulse but a 2005 does?? Can someone clarify this?

Posted By: profuse007
Date Posted: August 04, 2005 at 3:12 PM

TEST THESE WIRES BY TURNING THE KEY IN DRIVERS DOOR CYLINDER.

brown - BCM by fuse box, pin 44

let us know the result of ur testing. remember, the diagram given to you are to be tested and not to be plug and chug.

btw, the info was from the directwire by DEI. 05 altima is has a diff diagram.

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Houston,TX
"The two most common elements in the universe are H+ and stupidity" (Ellison).

Posted By: Chris Luongo
Date Posted: August 07, 2005 at 12:13 PM

1. It definitely needs a double pulse if it has a factory alarm.

If your alarm does not offer this feature, there are double-pulse generators that are probably still available, but it would have been cheaper to buy the right alarm the first time.

2. If there's no factory alarm, the wires are available right at the BCM, and you test them by operating the rocker switch on the door panel, and you do not need a double pulse.