remote start, 03 gmc sierra?

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=129762
Printed Date: April 28, 2024 at 9:00 PM

Topic: remote start, 03 gmc sierra?

Posted By: jd_21
Subject: remote start, 03 gmc sierra?
Date Posted: December 19, 2011 at 7:53 PM

Hi there, I was just wondering on a 2003 gmc sierra 1500 base model truck, if i am wiring up the door locks to work with a remote start system. Is all i have to do is supply a ground to the lt. blue and white wires going into the BCM to have the doors lock and unlock? If anyone could give me some ideas on what needs to be done here that would be great. Thanks

Replies:

Posted By: jd_21
Date Posted: December 19, 2011 at 8:07 PM

hope you will see what wires im talking about in this image

Posted By: smokeman1
Date Posted: December 19, 2011 at 8:16 PM

What make/model is the remote start?

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Posted By: jd_21
Date Posted: December 19, 2011 at 8:25 PM

It is a pro start remote starter. not sure of model if if it helps the part number is CT-5472TW and brief description of the system is 6 button 2-Way LCD AM Starter/Alarm/Keyless Entry (Auto/Man. Let me know if that is helpful. Its for my buddies truck and he purchased it at a Canadian Tire store.

Posted By: jseibold
Date Posted: December 20, 2011 at 12:15 PM

I'm not sure if it makes a difference being a Canadian truck, but if it's like the US '03 model you should get yourself a bypass module that integrates with the vehicle's OBD2 plug (purple wire) and controls the locks and passlock 2 system. To control the door locks without using a module, you will need to run wires into both the driver's and passenger's doors. Your idea of zpping the blue and whte wires at the BCM only works on Sierras through '02.

Here is what DEI shows for that truck (US model):

If interface module is not available, refer to Tech Doc 1601.
The driver door lock/unlock motor wires are gray - tan (5 wire)
at the driver window switch, black 26 pin plug, pins 21 and 20.
The passenger door lock/unlock motor wires are gray - tan (5 wire)
at the passenger window switch, black 26 pin plug, pins 10 and 11.
The rear doors power lock/unlock wires are gray/black (-) - tan/black
(-) at the BCM, gray plug, pins A6 and A3. The BCM (Body Control Module)
is under the driver dash. It has 6 plugs, the purple plug is on the back.

ON BASE MODELS, THE POWER LOCK - UNLOCK WIRES ARE LT. BLUE - WHITE (-) AT THE BCM, LT. BLUE PLUG, PINS B5 and B10.

If the truck is not truly a base model and you are not planning to use a bypass module,
here is a link that shows how to do the locks.

https://www.directechs.com/tech_docs/Document5868-603.pdf

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Posted By: jd_21
Date Posted: December 20, 2011 at 4:50 PM

everything is already installed and working except the door locks so i just need to get those working. The link u gave me to open in the above post i can not see the PDF file. I think it needs you to be logged in to view it.

Posted By: jd_21
Date Posted: December 20, 2011 at 6:57 PM

Would anyone else happen to have any information that I can use for this situation? Any little bit helps. Thanks