Request: 2002 Chevy Trailblazer Lt
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=2247
Printed Date: May 09, 2025 at 10:20 AM
Topic: Request: 2002 Chevy Trailblazer Lt
Posted By: JesusTTU
Subject: Request: 2002 Chevy Trailblazer Lt
Date Posted: July 26, 2002 at 6:03 PM
I was wondering if anyone has the alarm wiring for this car....thanks a lot
Replies:
Posted By: dan768
Date Posted: July 26, 2002 at 7:17 PM
Ah s**t you are gonna have fun on this, Year(s): 2002 | Make(s): Chevrolet | Model(s): Trailblazer | | 12 Volt (+) | 12ga. Red at ignition harness | Ignition 1 | 12ga. Pink at same | Ignition 2 | | Ignition 3 | | Accessory 1 | | Accessory 2 | | Starter | 12ga. Yellow at same | Horn | 18ga. Black (-) at same | Tachometer | | Lights (+) | | Lights (-) | 18ga. Gray/Black at light switch in Tan connector | Brake Lights | | Door 1 | 18ga. Gray/Black (-) inside of driver’s door at switches | Door 2 | 18ga. BLACK/ White (-) inside of front passenger’s door at switches | Door 3 | 18ga. Lt. Blue/Black (-) at driver’s side rear door sill (rear left door only) | Door 4 | 18ga. Lt. GREEN/ Black (-) under left rear seat entering back of fuse box (rear right door only) if too difficult can also be found in right rear door sill | Interior Lights | 18ga. Blue/White (-) at light switch | Trunk/Hatch | Inside of rear hatch only (two wires: 18ga. Violet (-) for glass, 18ga. Pink/Black (-) for lift gate) | Hood Pin | | Trunk Release | | Lock (switch) | There are two existing relays in the fuse box under the left rear seat which will operate the rear doors only when (-) is pulsed at terminal 85 of each | Unlock (switch) | The remaining front doors and hatch can only be done as reverse polarity resting negative inside of each respective door. | Driver Unlock | | Arm (key) | | Disarm (key) | 18ga. Lt. Green (-) inside of driver’s door at switches | Arm Input | 18ga. Gray (M) at left rear door sill | Disarm Input 1 | 18ga. Tan (M) inside of driver’s door at switches | Disarm Input 2 | 18ga. Tan (M) at left rear door sill |
------------- dan
Remember (there are no hard cars,some just take longer to install on then others)
Posted By: JesusTTU
Date Posted: July 28, 2002 at 11:36 PM
i forgot to ask for the remote start wiring also......it would be greatly apprecited.......i think this car will be a pain....but do one.....you can do almost all...
Posted By: Velocity Motors
Date Posted: July 29, 2002 at 8:14 AM
The remote starter information is all there from Dan..... look at the top of the sheet.  ------------- Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA
Posted By: JesusTTU
Date Posted: August 05, 2002 at 12:59 AM
Alright Guys i need some help on this.....im getting ready to do this alarm....i was wondering how many relays i am going to need to get....its for my sisters car and of course she wants all the options......she wants: Drivers door priority.......glass pop(if possible) and tailgate pop if it could be done seperately and how....i heard that the front doors are like 3 wire actuators and the rear are 5 wire......why is that.......so if you could help me out..... Thanks
Posted By: JesusTTU
Date Posted: August 05, 2002 at 1:03 AM
My Sister wants all the options on this bad boy.....like priority drivers door....tailgate and glass pop seperately of possible......i was wondering how to do the tailgate problem and how many realys i am going to need for the whole project....i heard the actuators in front were 3 wire and the back were 5 wire I think i have the door locks figured out but the only problem is the tailgate...Any help would be appreciated Thanks
Posted By: Velocity Motors
Date Posted: August 05, 2002 at 6:50 AM
Hey JesusTTU; You have to Go Inside Of Driver's, Front Passenger And Rear Hatch To Wire Three Separate 5-Wire Reverse Polarity Systems To The Lock Motors In Each Door. The Wires Are GRAY For Lock And TAN For Unlock. This Will Unlock/Lock The Two Front Doors And The Rear Hatch. The Middle Doors, Must Be Wired As A Negative Trigger System Using LT. BLUE For Lock And WHITE For Unlock. The Wires Are Located Under The Rear Seat On The Driver's Side. https://www.the12volt.com/doorlocks/page3.asp#5w ------------- Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA
Posted By: JesusTTU
Date Posted: August 05, 2002 at 4:03 PM
Thanks Velocity.....but could someone help me figure out the glass and tailgate pop idea.....she wants to be able to do each seperately if that is possible......but if its not then its ok too.. Thanks
Posted By: Velocity Motors
Date Posted: August 05, 2002 at 6:15 PM
How many AUX channels do you have to play with ? The glass pop and the tailgate release will need one relay each, but you need two separate AUX channels to accomplish this. ------------- Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA
Posted By: JesusTTU
Date Posted: August 05, 2002 at 11:05 PM
Alright last question...What is the best Alarm/remote start/extra AUX to get for this job......kinda on a budget so not too expensive...thanks
Posted By: lalur
Date Posted: September 06, 2002 at 7:34 PM
get a dei channel expander ------------- any help ask
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