2004 Trailblazer PL Module Location
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=89438
Printed Date: May 07, 2025 at 7:06 AM
Topic: 2004 Trailblazer PL Module Location
Posted By: firecomp
Subject: 2004 Trailblazer PL Module Location
Date Posted: January 23, 2007 at 6:08 PM
I have a 2004 Chevrolet Trailblazer. I have gotten the starter and alarm wiring installed OK. I used the 457GW databus module and the doorlocks are working OK. I cannot find the Passlock module though. The 457GW instructions say it is above the gas pedal or behind the climate controls and should say "Passlock" or "PLII" on it. I have the entire dash removed from this vehicle and cannot find the module. I have found the blinker module and another module that has 3 plugs that was on the left side near the kick panel. Is it even there or is it integrated into the engine module? If it is integrated where do I cut and what wire do I cut to interface the Passlock Bypass Pink and Pink/Black wires? Please Help ASAP, I am driving my father-in-laws car while I await your answer.
Replies:
Posted By: firecomp
Date Posted: January 24, 2007 at 12:04 PM
I have gotten my answer. The Trailblazer does not use the second 3 wire harness on the 457GW. It does all of the communications through the Databus. I will finish the install tonight and post a follow-up tomorrow.
Posted By: mikvot
Date Posted: January 26, 2007 at 9:36 PM
yeah, u got it, jut did an 06 the other day......violet databus is all yo need.
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