04 nissan altima BCM finding right pin#’s

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=78081
Printed Date: May 11, 2025 at 2:02 AM

Topic: 04 nissan altima BCM finding right pin#’s

Posted By: groggy23
Subject: 04 nissan altima BCM finding right pin#’s
Date Posted: May 21, 2006 at 1:54 AM

I'm trying to find what pin #'s are what in my BCM so I can corrospond the #'s I find in the diagrams to the BCM. I was able to take apart my BCM and find the pin#'s for each of the 5 plugs into it. Attached is a small diagram of what my BCM looks like. For example, on several diagrams I have found, for the trunk release hatch, one says pin # 13, the other 76..

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Replies:

Posted By: Chris Luongo
Date Posted: May 21, 2006 at 1:44 PM

Why do you need to know exactly which pin is which? It's fun to learn stuff about your car......but as far as installing an alarm, it is unnecessary.

There really aren't going to be very many wires at that BCM that are the same color.

For example, let's say the wiring diagram for your car says that the trunkpin wire is a certain color.......

Just grab the first wire you can find that is the correct color........test it with your multimeter or whatever you are using.....

If the wire shows a ground when you open the trunk it is the correct wire.

If it does not show a ground when you open the trunk, it must be the wrong wire.........forget about that one, and look for another wire that is the same color.

Posted By: groggy23
Date Posted: May 21, 2006 at 1:56 PM

Oh ok, I thought it was necessary.. n/m then :)