92 Bronco Locks Being a Pain
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=38465
Printed Date: July 15, 2025 at 1:22 AM
Topic: 92 Bronco Locks Being a Pain
Posted By: NJNJ
Subject: 92 Bronco Locks Being a Pain
Date Posted: September 01, 2004 at 8:07 PM
I'm trying to put an alarm in my 1992 Ford Bronco. I have all the connections hooked up and functioning properly, however I cant for the life of me get the keyless entry to work. I have been told I have "Type C" locks: "in PASSENGER KICK PANEL ONLY (TYPE "C") USE drivers switch as the master switch" (https://bulldogsecurity.com/New%20Wires/New%20Wires/Wires/forbronco92-93.htm) I have tried using the wiring diagram to wire up my door locks correctly...
However, when I do the 12v+ constant to the two relays pops its fuse everytime. For some reason I am getting a ground back to the original 12v supply and Im not sure where. I have no ground on the actual relay, so is it getting grounded from the actual motor and/or switch? Is this not a Type C door locking system? If not which kind does ford usually use? Like I stated its a 1992 Ford Bronco...
Thanks in advance
Replies:
Posted By: auex
Date Posted: September 01, 2004 at 8:44 PM
Make sure that you have pin 87A as the middle pin, nothing else should be there. Must be 87A.
------------- Certified Security Specialist
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Posted By: NJNJ
Date Posted: September 01, 2004 at 8:56 PM
I have tried that diagram however I get the fuse blowing...
I have got access to the door lock wiring at the passenger kick panel as the wiring diagram says... Am I wiring something back wards, or should I wire directly behind the switch on the drivers door?
Posted By: auex
Date Posted: September 01, 2004 at 9:11 PM
If when you put power to the relays and it immediately blows the fuse, then either you have wired the relays wrong or you have the wrong type of relays.
-------------
Certified Security Specialist
Always check info with a digital multimeter.
I promise to be good.
Tell Darwin I sent you.
I've been sick lately, sorry I won't be on much.
Posted By: traceman
Date Posted: September 01, 2004 at 10:00 PM
I just had the very same problem on my bronco. Blowing the fuse every time. I had the # 30 and # 87a wires from the relay connected to the wrong sides of the wires .Once I reversed them, everything worked fine.
Posted By: saleen49
Date Posted: September 06, 2004 at 12:05 AM
How do you know what wire is to switch and which is to motor? having same problem on my 93 Mustang and I lost all power to the switch's as a result,
Posted By: another-kelly
Date Posted: September 06, 2004 at 1:22 AM
(after identifying the lock and unlock wires) cut the lock and unlock wires, then using a DMM test one side of the wires and hit the lock/unlock button if you get +12v or not; no voltage should be motor side and +12v should be switch side
Posted By: saleen49
Date Posted: September 06, 2004 at 8:03 PM
Got it straightened out, works great, thanks
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