2003 Mazda Protege5, Lock/Unlock With Factory System Installed

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cbizzzle

Member - Posts: 6

Joined: July 02, 2021

Location: California, United States

Posted: January 25, 2024 at 9:42 PM / IP Logged

Hello. For the life of me I can't figure out why I can only get this to lock, or unlock. It won't do both. I have the 451M and the 3100XL. The car is a 2003 protege5 2.0l. I also have a light issue... It could just be a bad connection on my part 😅🤷🏽‍♀️🤷🏽‍♀️🤷🏽‍♀️

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kreg357

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Joined: January 30, 2009

Location: Pennsylvania, United States

Posted: January 27, 2024 at 7:40 AM / IP Logged

Not sure how you have it wired up right now but...

That car uses a single wire door lock system. When using the 451M Door Lock Module you would follow the Type H wiring diagram.

The two resistor values needed are :

Lock = 1,000 Ohms

Unlock = 620 Ohms

The vehicles' Single Lock wire is :

MINT GREEN/RED (Thin) at BASE OF A PILLAR OR UNDER DRIVER DASH

The resistor values are +/- 5% but you might have to play around to find the exact values for your car.

The Parking Light info is :

Parking Lamp (+) GREEN/BLACK(+) @ BLACK 36 PIN CONN. TO LEFT OF COLUMN

Soldering is fun!

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Disclaimer: *All information on this site ( the12volt.com ) is provided "as is" without any warranty of any kind, either expressed or implied, including but not limited to fitness for a particular use. Any user assumes the entire risk as to the accuracy and use of this information. Please verify all wire colors and diagrams before applying any information.