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Where is the Theft Deterrent Module located? BCM

Tiny
TONYD235
  • MEMBER
  • 1997 PONTIAC BONNEVILLE
  • 125,000 MILES
My car doesn't start I by-passed the VATS system but it still wont start. I was told I need to replace the Theft Deterrent Module in order to start my car. But I don't know where it's located. Also does it need to be reprogrammed after I replace it?

I am still having trouble with the same car 97 Pontiac Bonneville. I need to remove the BCM ( Body Control Module). I have located it, but I am having trouble removing it in order to get the part number to get the replacement. Please tell me how to remove it without causing any damage to the BCM? Thanks
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Friday, December 16th, 2011 AT 5:15 AM

4 Replies

Tiny
TONYD235
  • MEMBER
  • 62 POSTS
I finally was able to remove the BCM it was actually very simple! Can you tell me where the anti-theft module is located? Or the TCM (theft control module? Even though I had a professional to bypass the VATS system is it possible he got it wrong, because my security light still flashes. And everything that I have read tells me that my problem is dealing with security system and having the right OHM. Please don't miss understand me I really appreciate all of your assistance
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Thursday, December 29th, 2011 AT 11:06 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,833 POSTS
Here is what I found on the TCM and the BCM are located in the passengers foot well, (diagram below) and the TCM is located behind the dash on the passages side. Below.

Check out the diagrams (Below) Please let us know if you need anything else to get the problem fixed.
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Sunday, April 9th, 2017 AT 11:50 AM
Tiny
MARKANDMOLLY
  • MEMBER
  • 2 POSTS
Have same problem car starts but wont crank
Replaced fuel pump fuel filter and crankcase sensor. Anti-theft lights up on dash. Disconnected battery to reset. Also locked vehicle for a while then unlocked, still won't crank have reset code a few days ago but anti theft came back on.
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Monday, December 9th, 2019 AT 4:56 PM
Tiny
MARKANDMOLLY
  • MEMBER
  • 2 POSTS
This guide can help reset the security to let the engine run,

https://www.2carpros.com/articles/how-to-reset-a-security-system

Please run down this guide and report back.
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Monday, December 9th, 2019 AT 4:59 PM

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