having trouble finding the lock/unlock wi
Printed From: the12volt.comForum 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=131803
Printed Date: July 17, 2025 at 2:18 PM
Topic: having trouble finding the lock/unlock wi
Posted By: bad_dude
Subject: having trouble finding the lock/unlock wi
Date Posted: July 11, 2012 at 8:37 PM
The essential info. 1990 Honda Accord LX Sedan, all stock and never had alarm installed.
I have tested all of the wires that needed to be connected to the alarm. The only one I cannot confirm to be the lock and unlock with my multimeter.
The connector as pictured below is the 2 pin gray plug wrap in blue tape together with the wire harness black loom. The wires in the plugs are BLACK/ red(unlock) and BLACK/ white(lock). To test it, I ground the black of my multimeter and put the red on the connector wire, one at a time. While the multimeter is connected, I flip and switch and looking for voltage drop to zero or close to it. Nothing really drop on either wire. At rest the constant voltage shows 5.16V, as I flip the switch in either direct, the voltage goes to 5.09V, but not even close to zero. I follow this video to do my testing.
What I did to verify my testing method was to test the plug at the actual switch itself, the 2nd picture below. The wires are GREEN / WHITE, middle is black as ground, and GREEN/ red with 2 silver dots. I test both of the green wires and the voltages go from 5.16V to zero each time I flip the switch then back to 5.16V. Now that is how it's suppose to be tested and show those results.
I wonder if the lock and unlock wires can be found else where with the same or different colors. I can google any thing to be different.
Picture 1: 2 pin gray plug wrap in blue tape under the carpet.
Picture 2: 3 pin plug right at the driver's door.
Picture 3: The brown plug above has the BLACK/ white for door triggers and the green plug has the GREEN/ black for trunk trigger.
Picture 4: Big wire harness above the fuse next to the ignition harness. Are the lock or unlock wires in this one? What colors are they? Definitely not the conventional colors.
I don't know what else to proceed next? I can't completely install the alarm without confirming these 2 wires. I don't really want to go back later to connect the wires. Plus I am doing priority unlock so I want to get it done now.
For priority unlock, thanks Howard: Which wire color in the door do I need to cut to isolate the front driver's door from the rest of the doors so I can connect to the relay?
Also I am collecting ideas of how to run wires from the door inside the cabin on the driver's front side as I am putting window modules in the doors. The boots seem on tight and I don't want to drill any thing. Maybe I have to take the fender off. I have read the sticky thread on this forum of that wonderful proper way to run wires through the door but my door is different.
Thanks.
I have tested all of the wires that needed to be connected to the alarm. The only one I cannot confirm to be the lock and unlock with my multimeter.
The connector as pictured below is the 2 pin gray plug wrap in blue tape together with the wire harness black loom. The wires in the plugs are BLACK/ red(unlock) and BLACK/ white(lock). To test it, I ground the black of my multimeter and put the red on the connector wire, one at a time. While the multimeter is connected, I flip and switch and looking for voltage drop to zero or close to it. Nothing really drop on either wire. At rest the constant voltage shows 5.16V, as I flip the switch in either direct, the voltage goes to 5.09V, but not even close to zero. I follow this video to do my testing.
What I did to verify my testing method was to test the plug at the actual switch itself, the 2nd picture below. The wires are GREEN / WHITE, middle is black as ground, and GREEN/ red with 2 silver dots. I test both of the green wires and the voltages go from 5.16V to zero each time I flip the switch then back to 5.16V. Now that is how it's suppose to be tested and show those results.
I wonder if the lock and unlock wires can be found else where with the same or different colors. I can google any thing to be different.
Picture 1: 2 pin gray plug wrap in blue tape under the carpet.
Picture 2: 3 pin plug right at the driver's door.
Picture 3: The brown plug above has the BLACK/ white for door triggers and the green plug has the GREEN/ black for trunk trigger.
Picture 4: Big wire harness above the fuse next to the ignition harness. Are the lock or unlock wires in this one? What colors are they? Definitely not the conventional colors.
I don't know what else to proceed next? I can't completely install the alarm without confirming these 2 wires. I don't really want to go back later to connect the wires. Plus I am doing priority unlock so I want to get it done now.
For priority unlock, thanks Howard: Which wire color in the door do I need to cut to isolate the front driver's door from the rest of the doors so I can connect to the relay?
Also I am collecting ideas of how to run wires from the door inside the cabin on the driver's front side as I am putting window modules in the doors. The boots seem on tight and I don't want to drill any thing. Maybe I have to take the fender off. I have read the sticky thread on this forum of that wonderful proper way to run wires through the door but my door is different.
Thanks.
Replies:
Posted By: kreg357
Date Posted: July 11, 2012 at 9:12 PM
Posted By: howie ll
Date Posted: July 12, 2012 at 1:49 AM
Posted By: howie ll
Date Posted: July 12, 2012 at 1:54 AM
Posted By: bad_dude
Date Posted: July 12, 2012 at 11:02 AM
Posted By: howie ll
Date Posted: July 12, 2012 at 11:10 AM