2002 chevy avalanche w/457g

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=73635
Printed Date: July 04, 2025 at 10:17 AM

Topic: 2002 chevy avalanche w/457g

Posted By: bigpen
Subject: 2002 chevy avalanche w/457g
Date Posted: February 27, 2006 at 10:22 PM

Can someone tell me the exact wires I need to use on the 457g bypass. the vehicle is a 2002 chevy avalanche to be used with an alarm that has auto start. Thanks in advance!!!!

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Newjack

Replies:

Posted By: customak47
Date Posted: February 27, 2006 at 10:58 PM

The 457g interface is overkill on this truck. It will work, but you will still have to wire doorlocks and disarm. You should use a (dei) 555L or LW, but my preference is the gm-bp by bypasskits.com. 4 wire hookup, constant power, ground, ground out while r/s, and output to purple data wire in OBD port. the 457g controls doorlocks and factory alarm functions, but only on 03 and up with factory door control modules. You need to hook up - locks, light blue and white at fuse block in plug and factory disarm wire, light green in the driver side kick panel.

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My rifle is my friend...

Posted By: bigpen
Date Posted: February 28, 2006 at 12:24 AM

Thanks for the help!!! Which wire on the 457g do I splice the light green factory disarm wire with???

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Newjack

Posted By: gus1
Date Posted: February 28, 2006 at 10:03 AM

You don't. Disarm from the remote start goes to the light green in the far right BCM plug under the column.

All door pins are also at the BCM, last 2 plugs to the right. Tan for driver's, light blue for all others. Diode isolate.

You may have passlock problems using the 457G for passlock.... or you may luck out. The 555L would be a much more stable and cheap solution.

Gus

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Wherever I go, that is where I end up......

Posted By: bigpen
Date Posted: February 28, 2006 at 11:47 AM

Thanks for the assistance!!!Going to get the 555.

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Newjack