2004 Trailblazer PL Module Location

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.

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.

yeah, u got it, jut did an 06 the other day......violet databus is all yo need.