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How Does a Master Door Lock Work?

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=146336
Printed Date: March 28, 2024 at 5:18 PM


Topic: How Does a Master Door Lock Work?

Posted By: itolond
Subject: How Does a Master Door Lock Work?
Date Posted: July 18, 2020 at 3:09 AM

Hi Forum,

I am looking for insights on how a master door lock works - beyond the basics.

Scenario:
I have a linear actuator and via a controller is opens /Close a rear door via two momentary switches (ground pulse) I am looking at a 5 pin relay to isolate (ground) the switches in certain conditions.

Objective:
following this logic - if the master door is locked then the switches should isolate (no ground path = input ignored) Therefore if the master lock outputs a path to earth I may used this to isolate the rear door switches. (I was thinking of using Ground when armed output from alarm, however I am concerned about somebody opening the door when the vehicle is moving- so hence the push towards aligning with locks etc...)

Environment
the Master lock is not running through a ECU or any advanced electronics, it is a 4 wire unit with lock/unlock (orange / pink) black and yellow/Black trace - which I assume black is a route to ground - but no idea what the yellow is?



Replies:

Posted By: eguru
Date Posted: July 18, 2020 at 5:43 AM
Preventing passengers from having a method to unlock their doors is illegal in most countries because of safety concerns. Perhaps it is allowed in China, but not a good idea.




Posted By: itolond
Date Posted: July 18, 2020 at 4:41 PM
Understand, but I refer to the external dot buttons here. So somebody outside the vehicle cannnot open





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