2008 mazda 3 remote start

Printed From: the12volt.com
Forum Name: Vehicle Wiring Information & File Requests
Forum Discription: Request Car Alarm, Car Stereo, Cruise Control, Remote Starter, Navigation, Mobile Video, and Other Vehicle Specific Wiring Info, Manuals, Tech Tips
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=120083
Printed Date: May 10, 2024 at 5:35 AM

Topic: 2008 mazda 3 remote start

Posted By: eminit
Subject: 2008 mazda 3 remote start
Date Posted: February 12, 2010 at 12:28 PM

hi, I'm looking for the wire colors to do a remote start on a 2008 Mazda 3

I have everything done except for the bypass module
I cant tell RX and TX wire

pin 1 is WHITE/ light green
pin 2 is gray/orange
pin 3 is BLACK / YELLOW
pin 4 being gray/red
With the key out of the car
pin 1 has 12v, -----------------RX?
pin 2 nothing, -----------------TX?
pin 3 ground, and
pin 4 nothing.
With the key in the car in the on position
pin 1 12v, ----------------------RX?
pin 2 10.5v, --------------------TX?
pin 3 ground, and
pin 4 12v.

thank you

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robert l steckley

Replies:

Posted By: kickergod
Date Posted: February 21, 2010 at 5:40 PM

Pin#1 RX
Pin#2 TX
Pin#3 Ground
Pin#4 Ignition

If using a computer safe test light they will flicker when switched to ignition while being probed. If for some reason it still wont program, switch your TX/RX and try again. You can't hurt anything by being backwards. I have seen them listed backwards on some vehicles before. Good luck.

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Ryan Edwards
MECP Certified Installer

Posted By: eminit
Date Posted: February 28, 2010 at 10:39 AM

Thank you I'll try giving that a shot. I am currently waiting for a new bypass module i sent the other one back because I believe it was defective. I will let you know how things turn out

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robert l steckley