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1999 GMC Sierra Dismantling a computer component

Tiny
B1USCI73
  • MEMBER
  • 1999 GMC SIERRA
Computer problem
1999 GMC Sierra V8 Four Wheel Drive Automatic? Miles

Hi Guys! I would like to know how I can dismantle or disconnect the anti -theft lock out system on my Sierra truck. It has been blocking the gas flow and rendering it unable to start. A mechanic has already determined that this is my problem. It has no auto door locks or door lock opening codes on it. It is manuel door locks. I sure would appreciate a quick response if possible as my truck is my business! Thanks a big bunch!
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Sunday, July 12th, 2009 AT 12:04 PM

1 Reply

Tiny
BRIAN 1
  • MECHANIC
  • 1,030 POSTS
You really cant disable it, its intagrated into ECM and BCM. If you try to disable it or by pass it the vehicle wont start at all. Its put in place so if the ignition get tampered with or broken it wont start because the vehicle thinks its getting stolen. My only advise is to get it fixed, I have people ask me this question all the time, and there is always a great debate on all auto forums about this. You can do what you want, but I've never by passed this systems I always fix them.
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Sunday, July 12th, 2009 AT 12:14 PM

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