2007 gmc sierra classic

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=98964
Printed Date: May 08, 2025 at 11:33 PM

Topic: 2007 gmc sierra classic

Posted By: uwDawson
Subject: 2007 gmc sierra classic
Date Posted: November 13, 2007 at 2:54 PM

after installing remote start on this vehicle, i am getting a check engine light. has anyone had any experience with this? how should i resolve it?

Replies:

Posted By: Twelvoltz
Date Posted: November 13, 2007 at 3:20 PM

Did you power up the second ignition white wire?

-------------
Installer, IT support, and FFL. I need less hobbies.

Posted By: uwDawson
Date Posted: November 13, 2007 at 3:27 PM

Thanks, yes I did the white ignition wire. That doesn't seem to be the problem, any other suggestions?

Posted By: rt4x4
Date Posted: November 13, 2007 at 7:08 PM

when you say power up second ignition wire do you mean connect it? sorry im a rookie

Posted By: stang351w
Date Posted: November 13, 2007 at 8:21 PM

yes, there should be a white wire that HAS to be powered up when remote starting...most remote starters have a wire for a "5th relay" or "second ignition" if not then you will need to add a relay to power that wire. if it's not connected you can and prob will ruin your tranny after a bit. (not sure how long, never tried to find out, lol)

back to the question at hand, what unit are you useing and what wires did you connect to the main harness of the remote starter? also, did you try to remote start the vehicle efor the white wire was connected or were all if your connections made befor attempting to start it?

-------------
Tri County KustomZ
certified installer

Posted By: Twelvoltz
Date Posted: November 13, 2007 at 8:26 PM

As already asked it will make things easier if you list the make and model of the remote start you are using.

Is the white wire powering up as an ignition or an accessory?

-------------
Installer, IT support, and FFL. I need less hobbies.