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2003 Mazda MPV 1 Wire Door Lock Dilemma

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=145327
Printed Date: May 10, 2024 at 11:35 AM


Topic: 2003 Mazda MPV 1 Wire Door Lock Dilemma

Posted By: diariocruz
Subject: 2003 Mazda MPV 1 Wire Door Lock Dilemma
Date Posted: March 30, 2019 at 4:51 PM

I can’t wrap my brain around how to wire up my door locks from the alarm to the car. Car did not come stock with keyless entry for some odd reason but I’ve learned it time on a negative 1 wire system and I have all the relays/resistors to complete the install but I can’t comprehend how to wire them up. Can someone please provide a wiring diagram?



Replies:

Posted By: i am an idiot
Date Posted: March 30, 2019 at 8:57 PM
What resistor value locks and unlocks?




Posted By: i am an idiot
Date Posted: March 30, 2019 at 9:01 PM
Constant power to 86 of both relays. Lock wire from alarm to 85 of one relay. Unlock wire from alarm to 85 of the other relay. Ground terminal 30 of both relays. Attach unlock resistor to 87 of the relay you put the alarm's unlock wire. Attach lock resistor to 87 of the relay you connected the alarm's lock wire. Other end of both resistors to the one wire.

If it calls for a resistor on one and direct ground to do the other just skip the resistor and connect 87 of that relay directly to the one wire. Connect the resistor to the same spot as that wire.




Posted By: iskidoo
Date Posted: March 31, 2019 at 1:15 PM
posted_image

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Steve G




Posted By: diariocruz
Date Posted: March 31, 2019 at 6:04 PM
1k resistor abs thanks for the explanation I’m wiring it up now. I’ll post update when complete




Posted By: diariocruz
Date Posted: March 31, 2019 at 6:06 PM
Thanks for the image! Helps a ton. Pretty sure I understand now. Putting it to practice and will post up when done.




Posted By: diariocruz
Date Posted: March 31, 2019 at 7:28 PM
Thanks again, I got it to unlock but I’m still not getting it to lock. I actually think the alarm isn’t setting at all so maybe it’s something else causing my problem. Think I’m gonna throw in the towel and take it to a shop.





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