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99 Sierra Car alarm w/ remote start

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=58145
Printed Date: June 06, 2025 at 12:08 PM


Topic: 99 Sierra Car alarm w/ remote start

Posted By: usemos2
Subject: 99 Sierra Car alarm w/ remote start
Date Posted: June 21, 2005 at 3:15 PM

  I' ve been following  for couple days this site looking for tips on how install my Royal guard two-way car alarm with remote start for my 1999 GMC Sierra 4 x 4 extended cab P/u truck  5.3 liters. I was reading and learn those kind the truck use Passlock security system OEM and need Passlock module. I bought already  DEI 555L  passlock , I have also dowloaded car wiring color and location for this truck . My concern is about the second ignition wire (white color in the ignition switch) I read have to powering . My question is where I supposed hook this wire for power up? my car alarm module don' t have extra wire or aux wire to power up this second ignition and the another question will be door lock. my wiring diagram in royal guard car alarm  module show just one wire for lock  called ( central door lock wiring ) I have to put diode in the white and lt blue wires or put a relay. please someone knows about this car alarm.  thank  you



Replies:

Posted By: usemos2
Date Posted: June 21, 2005 at 9:11 PM

someone can help me with this car alarm system...........




Posted By: OhioMike1101
Date Posted: June 21, 2005 at 9:52 PM

If your RS unit does not have an output for IGN 2, then you will need to use a relay that is activated from IGN1.

85 - ground

86 - IGN 1

87 - Fused 12V

30 - output to IGN 2




Posted By: usemos2
Date Posted: June 21, 2005 at 10:21 PM
thanks.  OhioMike1101.  I' ll  put relay to get second IGN output .


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