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APS 996 arm and lock trouble

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=28460
Printed Date: July 15, 2025 at 1:22 AM


Topic: APS 996 arm and lock trouble

Posted By: Matt_c
Subject: APS 996 arm and lock trouble
Date Posted: March 16, 2004 at 4:23 AM

I'm in the middle of installing an aps 996 on my trans am.  I'm new to automotive electrical work so it's taking a while and I'm doing it in parts.  One major problem right now is that I can't get the system to arm.  The disarm function works fine, consistantly flashes the parking lights and inconsistantly unlocks the doors.  I've tried arming with both remotes, so I don't think it's a remote issue.  Both remotes work for disarming.

I'm wondering if maybe because I don't have everything connected yet, there's a missing necessary connection in order to arm the system.  Is there anything that needs to be installed in order to arm the system, but not to disarm it?

Also, I mentioned the door unlock function works inconsistantly.  I read that in order to make this work, the BCM (Body Control Module?) needs to be "waken up".  Does anyone know how wake it up?

Thanks,

Matt




Replies:

Posted By: sparkie
Date Posted: March 16, 2004 at 2:47 PM
The vehicle's Body Control Module goes to sleep after a few minutes and prevents the door lock/unlock system from working. You need to pulse the unlock wire (ORANGE / black) and the passenger's side doorpin (gray/black) with a ground pulse together. A double pulse may be required to unlock the doors. The lock wire is RED / black and requires a ground pulse to activate it. You must diode isolate the two unlock circuits.

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sparky


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