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Regarding PATS

Tiny
MANNY420
  • MEMBER
  • 1998 FORD MUSTANG
  • 150 MILES
I have a 98 Ford Mustang 3.8 automatic. I was told I may have a problem with the PATS system. My vehicle cranks but shuts off. I have done other maintenance from gaskets to altenator, starter, to sensors. How do I work around this problem or bypass the PATS. I only have one key don't have extras. Don't know if the problem is just the key or something I have to replace.
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Wednesday, July 18th, 2012 AT 7:19 PM

10 Replies

Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
We dont give out info how to bypass security systems. So is the security light on?Any trouble codes in the computer?
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Wednesday, July 18th, 2012 AT 7:26 PM
Tiny
MANNY420
  • MEMBER
  • 2 POSTS
No trouble codes on ECU sent to get checked. Checked out good. Security light blinked the last time I took off ECU. Doesn't make any sense to me, since I've had this car forever and owner, don't wanna take it to dealer to pay thousands of dollars. Though of replacing the keys and cylinder insert or tumbler on steering wheel.
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Wednesday, July 18th, 2012 AT 7:39 PM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
Lets start with you following the trouble tree I posted. Let me know what you find.
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Wednesday, July 18th, 2012 AT 7:54 PM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
Heres some more info to go with the trouble I gave you.
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Wednesday, July 18th, 2012 AT 7:59 PM
Tiny
WRENCHTECH
  • MECHANIC
  • 20,761 POSTS
You can't bypass the security system and you need a very high end scan tool to be able to diagnose the problem.
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Wednesday, July 18th, 2012 AT 8:19 PM
Tiny
CADIEMAN
  • MECHANIC
  • 3,544 POSTS
Take the key to the dealer and get a key cyl. And 1 proper pats key. Then it needs to installed. The dealer will read your key. Then they cut 1 keys for the new cyl. With the correct pats code.I must have did 1000 cyls. In my years. When u get this before installing it. Plug it in insert the key in the new cyl. Than try to start it with the column cyl. If it starts u will need to install the key cyl. If not return the cyl. Check l and r front lock assy. There is a tamper switchs on both cyl. And 1 on the trunk cyl. They all need to be adjusted at the key. Cyl.
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Wednesday, July 18th, 2012 AT 8:39 PM
Tiny
SATURNTECH9
  • MECHANIC
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Thanks for the info wrenchtech I just noticed I posted a trouble tree for the door pin switches and door lock cylinder I thought I read ignition cylinder switch. So theres non scan tool way around diagnose wrenchtech?
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Wednesday, July 18th, 2012 AT 8:40 PM
Tiny
SATURNTECH9
  • MECHANIC
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What if its not the key cylinder cadieman?Big waste of someone elses money for a guess. Here is the info that wrenchtech was talking about.
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Wednesday, July 18th, 2012 AT 8:55 PM
Tiny
WRENCHTECH
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I suppose you could get real technical with a lab scope and meters if you had all the data specs but it's pretty much a scan tool to find out what's working.
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Wednesday, July 18th, 2012 AT 8:57 PM
Tiny
CADIEMAN
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I agree u need a scan tool to pinpoint.
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Thursday, July 19th, 2012 AT 5:15 PM

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