Tahoe will turn over, but will die shortly after

[jerbear]

I have a 2003 Tahoe which I have owned for quite sometime now. I was installing and audio aux two days ago so I would be able to play my ipod through the radio. After installation, I put everything back together but when I went to start the truck, she would shut down shortly after. At first, I had thought it was the battery but when I had her jump started, I would come to the same problem. I let the truck sit overnight then gave it a full charge and unlocked it with the remote. The truck started up perfectly fine so I shut her off for the rest of the day. When I went to go take her out that night, I ran into the same exact problem as earlier. Now the remote is no longer working even with a full battery charge.

I am quite sure that this has to do with some sort of security system which has a fuel cut, or starter disable. I am not familiar with the truck or the security system, so I was wondering if there was some type of reset to the system. I have called many dealers already and only two were able to provide me with some help. One said that a reset button was located in the fuse box but when I checked I could not find anything. I have searched through the forum already and I havent found anything quite like this problem. The truck was running perfectly fine prior to this mishap so I am hopping this is an easy fix. I do not want to bring this to the dealership, so any help would be much appreciated.

Again, I am almost 100% sure this is a security issue. If anyone can tell me where I would be able to locate a reset button or even reset the whole vehicle entirely, that would be great. Thanks in advance for your help.

 

[dye4metal]

check the fuses

 

[JKmotorsports]

When you say it starts up and dies right after, how long does it run? A faulty Passlock code to the sec system will allow the truck to start and then run very briefly for about .5-1.5 seconds then die. You can try resetting the Passlock system in the bcm and see if it helps.
Put the key in the ign and turn it all the way forward to the IGNITION position without starting the truck. Now leave to key in this position for at least 12 mins. After 12 mins or so, turn the key back to the OFF/LOCK position then forward again to start the truck.
If it is a sec problem, this should take care of it.

 

[Donkey punch]

i know you tried charging it, but did you clean the post/cables? dirty post will give you problems.. easy to do and often times it's something small that will give you the biggest problems.

 

[alcangel]

busted ignition switch

my ignition switch was busted on my 99 tahoe, i replace the whole column with that of a 99 suburban. my truck is doing the same thing and i tried to reset the passkey but it still does not work, ANY ADVICE, PLEASE.

When you say it starts up and dies right after, how long does it run? A faulty Passkey code to the sec system will allow the truck to start and then run very briefly for about .5-1.5 seconds then die. You can try resetting the Passkey system in the bcm and see if it helps.
Put the key in the ign and turn it all the way forward to the IGNITION position without starting the truck. Now leave to key in this position for at least 12 mins. After 12 mins or so, turn the key back to the OFF/LOCK position then forward again to start the truck.
If it is a sec problem, this should take care of it.

 

[JKmotorsports]

my ignition switch was busted on my 99 tahoe, i replace the whole column with that of a 99 suburban. my truck is doing the same thing and i tried to reset the passkey but it still does not work, ANY ADVICE, PLEASE.

I replied to your PM.