Fixed My PATS "Issue" - Mustang Evolution

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Old 10-21-2015, 09:07 PM   #1
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Fixed My PATS "Issue"

So for quite some time now I thought I had the dreaded PATS issue. Started by not starting and the theft light flashing intermittently, went a few weeks with a couple times of this. Then stopped a while then started again and so on, I was always able to get it started again though. This lasted all summer long. I changed the battery in my key, got a new key made at the dealer, still the same issue. Started to look into tuners and was going to order one tomorrow and have PATS turned off completely. Thought today I would give it one more shot, and turned out that in both keys I have the batteries were shot. It just hit me that I should spend a few bucks on some new batteries and try that, and wham it worked! Just my luck that the new key had a bad battery, only a few months old, and the battery I repleaced in the original key (also an aftermarket programmed copy) a couple months ago was bad too. I assume they were both bad since they now both work. I couldnt start the car at all for the last month, and as soon as I switched the batteries it fired up, no issues. I wonder how many times this has happened to people since Im sure most of the small watch type batteries sit on the store shelf for quite a while, just a thought that this simple thing could have happened to others. I know those types of batteries dont sell often and do sit on the shelf for a long time, as I work at a place that sells them. Even though the expiration date may be OK they may lose some life? I dont know? Either way it worked out for me today and it only cost a few bucks, things dont work like this for me ever so I was excited to post, even though I know no one will care, lol.

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Old 10-21-2015, 09:09 PM   #2
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Still want to order the tuner though!

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Old 10-21-2015, 09:54 PM   #3
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-Yawn-
Yay Steve


Lol
I didn't even know that the damned keys had a battery!
Why do they need to make it so complicated?
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Old 10-21-2015, 10:04 PM   #4
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And how do you change them?
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Old 10-21-2015, 10:30 PM   #5
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Looking at my original key that actually broke in half im not sure if you just pop it open? But my copies actually say that it contains a battery. I dont know why this system has to be so complex, probably why it has so many different issues to go wrong. Thats why i was just going to have it disabled.

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Old 10-21-2015, 10:32 PM   #6
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The replacement ILCO keys i have are easy to change it. Push the tab, pull off the blade portion, take out a rubber gromment, then the whole chip and little board just falls out and it contains the battery

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Old 10-22-2015, 05:57 PM   #7
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Fixed your PATS

I was wondering, what was your car doing when it wouldn't start! I've had a couple of times when my car wouldn't start and my slam light inside would just buzz and the car would just click! I thought my battery in the car was bad but all signs show that it's ok! So maybe it's my key battery! Just taking a guess here!!
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Old 10-22-2015, 05:58 PM   #8
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Good thing I got my Ford VCM II Tool back. PATS is no longer a concern for me. I can program my own keys now
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Old 10-22-2015, 06:00 PM   #9
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Quote:
Originally Posted by Kevin.Cook View Post
Good thing I got my Ford VCM II Tool back. PATS is no longer a concern for me. I can program my own keys now
That is awesome!

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Old 10-22-2015, 06:04 PM   #10
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Quote:
Originally Posted by Tominkc View Post
I was wondering, what was your car doing when it wouldn't start! I've had a couple of times when my car wouldn't start and my slam light inside would just buzz and the car would just click! I thought my battery in the car was bad but all signs show that it's ok! So maybe it's my key battery! Just taking a guess here!!
My car would start for maybe 3-5 seconds and then shut off. The theft light would flash really fast, this is how i knew it was going to act up before i even cranked it. So i would turn the key to the on position and then the "theft" light would flash, if i continued and started it like i said it would shut down after a few seconds. I beleive from my research on this that it would shut down the fuel pump. If you research it you will find many different variations of the issue, some cars react different depending on year maybe? And what is exactly malfunctioning.

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