Question about 1999 Ford F150 Regular Cab

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1999 Ford F150 won't start. Mechanic said the PATS system needs to be reset. How do I reset that system? I have already un-hooked the battery, still nothing.

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  • 188 Answers

Sounds like you will need a computer to get into it to reset it! Not sure what PATS stands for though!

Posted on Oct 21, 2013

6 Suggested Answers

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  • 2 Answers

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Posted on Jan 02, 2017

  • 7 Answers

SOURCE: 1999 Ford F150, Charging system.

Try replacing the tensioner pulley or the belt or both.

Posted on Feb 01, 2009

keemo68
  • 1263 Answers

SOURCE: Ford F150 AC

if it is a 134a system the port should be on the right side near the drierit should have a blue cap on it the high side should be near the front of vehicle near the condensor. the low side pressur should be 30-35 psi high side should be 130-150psi. do you have quick connects?---are the gauges for 134a it should say on the face of the guage.

Posted on Sep 04, 2008

SOURCE: 1999 Ford F150, Charging system.

Your battery may not be holding its charge. Charge the battery and take a voltage reading. Then after a few hours take another reading andsee if the voltage has dropped. If that is alright, refit the battery to the car. turn off all the electrics anddo a voltage test. If the battery is discharging then ou will have to find what componant is drawing the voltage. I normally check the boot through the rear seats first.

Posted on Nov 28, 2008

  • 43 Answers

SOURCE: 2000 ford windstar won't crank over,but pats keys good, and batt.

First thing I would check is to see if you have power at the trigger wire of the starter motor while someone is trying to start the vehicle for you. It will be a Yellow with a light blue trace. If you do then I would check to see if the main battery cable has power to it all the time when someone is trying to crank it. If it does then I would hold a test light on the case of the starter motor and have someone try to crank it. Make sure that the ground you use for this test is on the negative battery terminal not just anywhere on the car. If the test light lights while you are cranking it then you have a bad ground. Hook up a set of jumper cables from the battery negative terminal and clamp it directly on to your starter motor and see if it starts. If you check it and the test light doesn't light up and all the other checks are good then your starter motor has failed. If one of the other tests has failed then you have a starter relay problem or something else. let me know what you find out.

Posted on Apr 13, 2009

junmag
  • 175 Answers

SOURCE: anti theft device for 1997 ford expedition

try using a spare key first

Posted on Jun 02, 2009

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2008 ford focus security light flashing...


Dealer only . Unless you have ford IDS scan tool ! Disconnecting the battery does nothing for PATS - passive anti-theft systems . Or a mobile lock smith .

Nov 23, 2016 | Ford Cars & Trucks

1 Answer

I cannot get the Pats system on a 1999 Ford Taurus to reset to learn a new remote fob. What could be the problem.


Ford Passive Anti-theft System (PATS) - KCSS ...

https://kcss-transportation-technology.wikispaces.com/share/.../61579706
The passive anti-theft system (PATS) uses radio frequency identification .... This hasreset instructions when you get to the point where she turns over but won't ... Took the truck to a Ford dealer and they recommended replacing the ... http://www.f150forum.com/f6/1999-f150-4-6-wont-start-anti-theft-light-flashing-129601/Missing: learn

Reference: - Ford Anti-Theft (PATS) ' FordForumsOnline.com

www.fordforumsonline.com > Ford Tech Forums > Sound & Security

Oct 26, 2010 - 16 posts - ‎3 authors
Ford SecuriLock Overview PATS is a vehicle security feature ... be noted that PATS is not your Remote Keyless Entry (Key Fob). ... The PATS Control Modules flashes the "Theft" lamp to show system ... keys are currently qualified for the 2000/1Taurus/Sable, 2001 Windstar, ..... 1999 Taurus DOHC 145,000.Missing: learn

Reprogramming procedure for Mercury, Ford and Lincoln ...

www.autorepairinstructions.com/?p=171

Jan 14, 2016 | Ford Cars & Trucks

1 Answer

How do i reset pats


Here is a post from a Ford Forum explaining the anti-theft system and the ignition key issue.

Ford F150 99 150 ignition anti theft question

Jan 13, 2015 | 1999 Ford F150 Regular Cab

3 Answers

Changed my battery in 1999 lincoln town car...car wont start...I think I have to reset the alarm...where is the valet switch under the dash?


try by removing cables from battery, and hold cables together for about 10 seconds this may reset pcm. If this doesnt work your vehicle needs to put on a scanner. Not just an obd one.

a lot of cars from ford have the pats system installed. you could also have some pcm issues, for the pcm has to relearn some procedures. hope this helps !

Mar 16, 2011 | 1999 Lincoln Town Car

1 Answer

Im instaling a remote start alarm on my 1999 ford f 150 how do i bipass the anti theft and i do not want to carry 2 remotes around


The 2 Key fob part, is to get a remote start that also has the RKE ( Remote Keyless Entry ) function. The the RMST / RKE system is installed, the RMST fob would be able to operate the door locks ( you can put the factory RKE fobs in the drawer )

the PATS ( Passive AntiTheft System ) part is to get a PATS bypass module for the remote start. The remote start that you purchase needs to be able to activate this prior to starting the truck ( usually pulse / signal outputs, most mfgr of RMST have these ).

There are a few PATS bypass modules, I have only used the Ford branded one ( which I think is also made by CodeAlarm, not 100% sure ).

Jan 16, 2011 | 1999 Ford F150 Regular Cab

1 Answer

What is definition of PATS, HEC and RFID. These are used in answer to problems with remote car starter on Ford F150.


PATS - Passive AntiTheft System.
- This is the large head on the key to the truck programmed.

HEC - Hybird Electronic Cluster ( I think that is the correct words ).
This is where the RFIDs ( see below ) for the keys programmed to the truck are stored in the cluster.

RFID - Radio Frequency IDentification
The key head has a serial number that is stored in it. and similar to the white tags on CDs and expensive items in stores, an antenna "paints" ( produces a signal field ) the RFID tag in the key to enable it to be read. This is how the key ( or those white tags in the store ) do not need a battery in them to transmit the information.

Sorry I screwed you up in the other problem by getting acronym happy without defining them.

The PATS antenna is around the ign key cylinder. To remove the cover 3 of the holes have phillips head screws in them. The 4th hole, use a punch or drift to press the button AFTER turning the key to the run position.
sscullys_30.jpg

The PATS antenna is around the ignition key cylinder
sscullys_31.jpg

This is all I could come to with the issue of the RMST work start the truck, but if you used the 2 keys for the truck, the theft light would not go out.
Once you get to this point, you might not notice anything obviously wrong, which I can only suggest repalcing the PATS transponder loop antenna. I know Remove & Replace is a bad diagnoses step, the only other route is having a dealer, high end mechanic or locksmith try to reprogram the keys again. The dealer / mechanic might have luck with getting the reprogrammed, else they are going to go the same route.
I do not see where this can be, there can be 8 PAS keys programmed ( unless it is a fleet vehicle, which a setting can be set to 2 keys only, but the PATS bypass for the RMST would not have been added if this was the case ).

Nov 20, 2010 | 1999 Ford F150 Regular Cab

1 Answer

Lost keys to truck got new ignition with keys but still wont start 99 f150


The 1999 F-150 has a PATS ( Passive Anti Theft System ), where te keys need to be programmed to the truck.

For the owner to do this, you need 2 keys ( not 1 key and a clone of the same key ) or you need to have a higher end mechanic / dealer or a PATS programmer locksmith to program the new keys.

The truck basically thinks it is trying to be stolen, and the PATS system is stopping it.

Mar 14, 2010 | 1999 Ford F150 Regular Cab

1 Answer

I want to bypass my 99 ford f150 alarm system


If you are talking about the PATS system, no way to do it. There is no factory alarm from Ford, if it is a Ford OEM system, it was added at the dealer. The 97 & 98 has a factory alarm system, but this was deleted after the introduction of PATS in 1999.

Mar 07, 2010 | 1999 Ford F150 Regular Cab

2 Answers

I have a 1999 f150 5.4 4x4 that it crank over but wont start


I had a similar problem. The engine would turn over but not fire up. I was just about to spend a fortune on all the usual things, but decided to have the battery checkrd out first. Saved myself a ton of money. It had the volts but no amps. Put in new battery and It fired up right away.

Feb 14, 2010 | 1999 Ford F150 Regular Cab

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