2004 GMC Envoy

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=70517
Printed Date: May 15, 2025 at 5:28 PM

Topic: 2004 GMC Envoy

Posted By: 05gt
Subject: 2004 GMC Envoy
Date Posted: January 11, 2006 at 12:00 AM

Just to clear this up

1st IGN pink, 2nd IGN white, 1st ACC orange, 2nd ACC brown

and is that how they should be wired

Thanks in advance

Replies:

Posted By: kgerry
Date Posted: January 11, 2006 at 8:36 AM

you dont NEED the brown hooked up..... other than that, yes....

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Kevin Gerry
Certified Electronics Technician
MECP First Class Installer

Owner/Installer
Classic Car Audio
since 1979

Posted By: sparkie
Date Posted: January 11, 2006 at 5:09 PM

Actually you do require the Brown second accessory wire on those vehicles now. If not you will set a trouble code on some of these vehicles. It powers up a transmission module on these vehicles. The check engine light doesn't always come on at first, but will after a few minutes. It's not on all of them, but it is better to do it and not have it come back. I have seen quite a few already do this.

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sparky

Posted By: extreme1
Date Posted: January 11, 2006 at 5:52 PM

sparkie wrote:

Actually you do require the Brown second accessory wire on those vehicles now. If not you will set a trouble code on some of these vehicles. It powers up a transmission module on these vehicles. The check engine light doesn't always come on at first, but will after a few minutes. It's not on all of them, but it is better to do it and not have it come back. I have seen quite a few already do this.

Accually it's a secondary air something or other and it's only on the 06's so far.

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Shaughn Murley
Install Manager, Dealer Services
Visions Electronics
Red Deer, Alberta

Posted By: sparkie
Date Posted: January 11, 2006 at 6:49 PM

I beg to differ. I have had to fix 3 Envoys for this so far and one was a 2004 and the others were 2005's.

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sparky

Posted By: mo12v
Date Posted: January 12, 2006 at 8:23 AM

Some may not agree......But this is how I have hooked up since 2002.
Never had one come back...........
And I always Power the Brown wire

Constant 12 volts	RED (2)	IGNITION SWITCH HARNESS
Ignition 12 volts	PINK	IGNITION SWITCH HARNESS
Starter	YELLOW	IGNITION SWITCH HARNESS

Ignition #2	WHITE	IGNITION SWITCH HARNESS
Ignition #3	ORANGE	IGNITION SWITCH HARNESS
Accessory	BROWN	IGNITION SWITCH HARNESS

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MO

Don't Learn from Others Mistakes
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