How to bypass the anti-theft?

  • 4.6L
  • V8
  • 2WD
  • 250,000 MILES
Well, impound lost my keys an I broke my ignition got it home an put a new ignition in had a locksmith come try to make new keys and brought transponder keys for it, but it would program to the keys however the theft light is still flashing. How could I bypass the theft or take it to the dealers.
Do you
have the same problem?
Friday, October 1st, 2021 AT 6:14 PM

1 Reply

Unfortunately, you are not going to be able to bypass this theft system.

This operates from a code that the key has, and the PATS module needs to see this and send it to the cluster where that will then tell the PCM that it is ok to start the engine.

What I would do is start with checking for codes to find out what the issue is. More than likely we will find out what the PATS system is seeing that is preventing the system from turning off.

If the locksmith did not program the key, then that is the issue. So, we will need someone with a scan tool that can do that as you will need to have at least one key already programmed to program another. But if you don't have one then you need a scan tool that will program them.

Once we know what codes are there, we will take better action but the only way you can bypass this system is to get a PCM with this entire system removed from it. There are many companies out there that do this and all that does is have the PCM ignore the theft system but that means you don't have it at all so someone can just use a metal key and start the engine which makes it easier to steal.

Let us know what you find with this, and we can go from there. Thanks
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Saturday, October 2nd, 2021 AT 7:54 AM

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