Question about 2000 Ford Taurus

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My security light flashes and it doesnt crank... last time i brought it in it was something to do with the PATS sensor. Was wondering if theres anyway to to disable it casue this is the fourth time ive had an issue with the security system

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  • mjjze87 Mar 24, 2011

    i well i got it started, i just turn the key in the on position and hot wired the starter relay and it poped off and ran fine, i just cant start it with a key just have to put in a push button in the cab. Ha its just a work car anyways

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Even though you got it started please check the security system problem.If the check engine light is ON you can perform a scan on your car and get the error code which will indicate the problem in your car system.

Posted on Mar 24, 2011

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Sorry to say it would take a highly qualified electric engineer to do what you want with excess to reprogrammomg the computerized circuitry to eliminate the PATS. Generally the wires break in the steering column when the tilt wheel is used quite often disabling the car to start. If your problem is with the sensor I would call Ford Motor Company and complain about this problem continuing too oftern. They may make an exception and have it repaired for you at no charhe. Complaining to the corporation is the best thing to do with repeat repairs. That proves they have a faulty part or the dealership that repaired it is incompentant of thoroughly checking the problem correctly.

Posted on Mar 23, 2011

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1 Answer

I'm having a starting problem which I believe is PATS security system related. engine cranks fine crank sensor is ok.


What make , model and year vehicle ? You mention PATS , that's ford , mercury , lincoln . Light flashing when cranking the vehicle ,anti-theft problem . Nothing you can do , unless you have a factory scan tool . Your best bet ,dealer . Disconnecting the battery isn't going to do anything . Need to have vehicle checked for DTC'S diagnostic trouble codes , do diagnostic's for the code . Replace or fix what ever the problem is . If a module needs to be replace , key's need to be programmed . Dealer or mobile lock smith that is licensed ! Don't know what your trying to say here OBD reading protocol OSD 9141 AND KEYWORD:2000 ,these have nothing to do with PATS -

Aug 26, 2017 | Cars & Trucks

1 Answer

2004 Mountaineer no start no crank? Battery, starter, fuses, relays all good. No code errors. PATS problem. Original keys&fobs all good even reset manually and good. All dash lights functions ok.


. quick flashing when ? when trying to start the vehicle ? If yes you need to have it checked for codes . Do you know what DTC'S - diagnostic trouble codes are . If that light is flashing while trying to start the vehicle codes are present in the module that controls PATS . Instead of guessing have towed to a qualified repair shop . Because you have no idea how to diagnose this system .

Dec 28, 2016 | 2004 Mercury Mountaineer

1 Answer

I have a 2008 F350 6.4 diesel with no crank no start pats light flashing rapidly and airbag light flashing


you must disconnect the battery for 5 minutes then when you reconnect the cables press the alarm deactivate button on your remote I believe your car will start and when you see the pats light rapidly flashing the cars in theft mode and will not start

Nov 04, 2016 | 2008 Ford F-350

1 Answer

How do I reset anti theft on2000 ford explorer


The passive vehicle protection system will be activated and will disable the vehicle from starting if there is a:
  • damaged encoded key.
  • unprogrammed key.
  • non-encoded key (key has no electronics).
  • wiring concern.
  • transceiver concern.
  • PCM concern.
  • module communications network concern.
Reset ? IF your anti-theft system light is flashing when trying to start your vehicle , an the engine doesn't crank , turn , or nothing happens when you turn key , then your anti theft system is at fault ! An trying to reset will not work ,you need to have it checked DTC'S - diagnostic trouble codes ,then fixed ! I suggest you have it towed to the dealer or a ASE certified repair shop !
PATS uses the powertrain control module (PCM) to enable or disable the engine. The PATS module communicates with the PCM over the SCP communication network in order to enable engine operation. The PATS module and the PCM use sophisticated messages in order to prevent a theft. The PATS and the PCM share security data when first installed together, making them a matched pair. After this security data sharing, these modules will not function in other vehicles. The PCM shared security ID is remembered even if the battery is disconnected. The PATS module also stores the vehicle's key identification code, even if the battery is disconnected. There are special diagnostic repair procedures outlined in this workshop manual that may be carried out if either the PATS module or the PCM needs replacement.

Jan 20, 2016 | Ford Cars & Trucks

1 Answer

I have a explore 2004 4dr 4.0 and It wont crank. starter good battery good. Us it the pats system and how do I check


Is there a little red light on the top center of dash pad ? Does it flash fast when trying to start the vehicle ?
PATS uses a visual theft indicator located on top of the instrument panel. This indicator will prove out for 3 seconds when the ignition switch is turned to ON or START under normal operation. If there is a PATS problem, this indicator will either flash rapidly or glow steadily (for more than 3 seconds) when the ignition switch is turned to ON or START. PATS also "flashes" the theft indicator every 2 seconds at ignition OFF to act as a visual theft deterrent.

Jan 06, 2016 | Cars & Trucks

1 Answer

Vehicle will not start! Replaced the battery but it will still not turn over. Oil light, battery and engine light come on when initially trying to start.


Is the security light on or flashing when trying to start the vehicle .
Anti-Theft The passive anti-theft system (PATS) consists of the following components:
  • Anti-theft indicator
  • Encoded ignition key(s) (the key contains a transponder)
  • PATS transceiver
  • Powertrain control module (PCM)
PATS will disable the vehicle from starting if there is:
  • a damaged PATS key.
  • an unprogrammed PATS key.
  • a non-encoded key (a conventional key or one that does not have any electronics).
  • damaged wiring.
  • a damaged transceiver.
  • a damaged PCM.
If it is a anti-theft system you will have to take it to the dealer .This system will keep the starter from spinning the engine .

Oct 30, 2015 | 2007 Ford Freestyle

2 Answers

2002 mercury cougar starts once then stalls. Wont start just cranks. I have spark and can hear fuel pump come on.


Probably something with the PATS system , Passive anti theft system. Is there a red light in the middle of you dash that flashes fast when you try to start the car. Or is there a security light lit on you instrument cluster ? If you have a problem with PATS the engine computer will turn off fuel injectors in some cases !

Jan 03, 2015 | 2002 Mercury Cougar

1 Answer

I have a 2001 Lincoln ls 3.9l v8 I have a crank but no start issue. When key on security light on dash flashes rapidly for about 1 minute then pause one flash pause six flashes.then it repeats one six...


Code 16 is no communication between the PAT and PCM.
This code can show up as a B1681 or HEC code 9681 on a dash test.
They all mean the same thing but from different detection points.
Cause is an open, ground or cross in the circuit between the PATS and PCM.

This is an anti-theft feature. The key you use has a radio chip (transponder) so that only the keys programmed to that vehicle will start it. If the key isn't present, then it won't start. Something could have gotten in there and chewed on the wires or the connectors could be loose. It is also possible the module is damaged (not as likely) but in either case, without the right dianostic equipment, this isn't something that you can fix yourself. Even if you swap out the module yourself, it still has to be programmed to operate with the car. The PATS module is built into the instrument cluster on this car. I suspect you may also has 'dashes' (-------) where your odometer readout should be.

Dec 30, 2014 | Cars & Trucks

2 Answers

My 2000 Ford Taurus will not start because of the security system


the security system resets itself after about 15 minutes. If it was the security system, the car would not crank over. Why do you think it's the security system?
do you have gas in tank?

Is it a Ford security system, with the flashing light on the dash?


Principles of Operation
The PATS uses a specially encoded ignition key, this key is not compatible with previous vehicles or any current model year vehicles. Each specially encoded ignition key contains a permanently installed electronic device called a transponder. Each transponder contains a unique encrypted identification code out of over 18 billion, billion combinations.
Each encoded ignition key must be programmed into the vehicle's powertrain control module (PCM) before it can be used to start the engine. There are special diagnostic repair procedures outlined in this manual that must be carried out if a new encoded ignition key is necessary.
This system contains a new feature named Unlimited Key Mode. This feature allows a customer to program more than eight keys to their vehicle if they request it. Each vehicle in Unlimited Key Mode is set up with a special Unlimited Transponder Security Key. This allows all the customer vehicles to share the same keys, but no other keys from outside can be used to operate the vehicles. For an individual customer, any randomly selected Security Key is acceptable. Refer to Key Programming—Unlimited Key Mode in this section.
The PATS transceiver module communicates with the encoded ignition key. The module is located behind the steering wheel column shroud and contains an antenna connected to a small electronics module. During each vehicle start sequence, the transceiver module reads the encoded ignition key identification code and sends data to the PCM.
The control functions are contained in the PCM. This module carries out all of the PATS functions, such as receiving the identification code from the encoded ignition key and controlling the engine enable. The PCM initiates the key interrogation sequence when the vehicle ignition switch is turned to RUN or START.
All elements of the PATS must be functional before the engine is allowed to start. If any of the components are not working correctly, the vehicle will not start.
The PATS uses a visual theft indicator. The indicator will prove out for three seconds when the ignition switch is turned to RUN or START under normal operation. If there is a PATS problem, this indicator will either flash rapidly or glow steadily when the ignition switch is turned to RUN or START. The PATS system also flashes the theft indicator every two seconds at ignition OFF to act as a visual deterrent.
The PATS will be activated and will disable the vehicle from starting if there is a:
  • improper encoded ignition key (example — Taurus/Sable key).
  • damaged encoded ignition key.
  • unprogrammed key.
  • non-encoded key (key has no electronics).
  • damaged wiring.
  • damaged transceiver.

Apr 13, 2009 | 2000 Ford Taurus

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