87 chevy fullsize blazer 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=105464
Printed Date: July 06, 2025 at 1:16 PM
Topic: 87 chevy fullsize blazer door lock
Posted By: crazz
Subject: 87 chevy fullsize blazer door lock
Date Posted: June 14, 2008 at 11:49 AM
i hope this isn't a repost. i searched and didn't find what i needed. i looked at the 1041 tech tip but i just don't understand. i have a 87 chevy full size blazer, fuel injected, automatic. i wired the valet 561r up the remote start works great. but when i hit the lock/unlock on the remote all the 561r does is click. could someone please help me get this working. i tagged the wires under the dash near the kick panel. there is a plug where the 3 wires come together. the constant hot then the blue lock wire & BLACK/ white unlock wire. if you can help me out i would greatly appreciate it.
Thanks
Rich
Replies:
Posted By: chriswallace187
Date Posted: June 14, 2008 at 12:14 PM
The 561R will not do (+) trigger locks, despite what the manual seems to tell you. I tried it myself when I was doing a lot of them, and it's never worked.
You'll need either a 451M or equivalent door lock relay, or a (-) to (+) door lock adapter(DEI makes one but I can't remember the part #).
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