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Pats antitheft system on a 2002 mercury mountaineer

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Jeff Armer

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  • Mercury Master
  • 1,789 Answers

What about it ? Need more info.

Posted on Feb 19, 2020

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5 Related Answers

Michael Gutwein

  • 104 Answers

SOURCE: How do you access the spark plugs 2002 mercury mountaineer

IIRC these are a coil over design. meaning the coil is over the plug. the coil should have one 8mm bolt holding it on the lower intake manifold. remove the coild to get to the spark plugs. look by the fuel injectors, coil should be just next to it or very close. coil usually says motorcraft on it and circle in design.

good luck
Michael
ASE certified

Posted on Feb 09, 2009

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Marvin

  • 85223 Answers

SOURCE: 2002 mercury mountaineer 4.0 starter relay location

The power distribution box is
located in the engine compartment.
The power distribution box contains
high-current fuses that protect your
vehicle’s main electrical systems
from overloads.
The starter relay is in position #56 of that box.

Posted on Mar 23, 2009

Anonymous

  • 14 Answers

SOURCE: which fuse is SPECIFICALLY THE radio fuse/2002 mercury mountainee

it might be initialed RDO, your car manual will show you an exact location, also your fuse cover will show the location of the radio fuse

Posted on Apr 06, 2010

vtu1314

SeabeeMechanic

  • 1367 Answers

SOURCE: 2002 mercury mountaineer stalled while in gear will not engage the starter coil pack all fuses relays dtr pcm starter pat ignition tumblers or ignition switch left to troubleshoot help please

Could you brake down your long paragraph ? Not sure what you have checked and what you need to check.

Please add more detail information as to your problem, what have you done as diagnosis, if any at all.

Posted on Dec 19, 2016

Tom Chichester

  • 55375 Answers

SOURCE: Which fuse do I remove to stop my horn from blowing on my 2002 mercury mountaineer when I don't have a manual?

10A FUSES 18 and 6 in the central junction box.

Posted on Jul 18, 2017

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1 Answer

How do you turn off the anti thrift on an 02 escape


There is no way to "turn it off." If you could, they wouldn't call it antitheft. Get the trouble codes read and fix it. This isn't a complicated system and is fairly inexpensive to fix.
Ford PATS Antitheft System Ricks Free Auto Repair Advice

Jan 16, 2018 | 2002 Ford Escape

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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

2002 mercury mountaineer stalled while in gear will not engage the starter coil pack all fuses relays dtr pcm starter pat ignition tumblers or ignition switch left to troubleshoot help please


Could you brake down your long paragraph ? Not sure what you have checked and what you need to check.

Please add more detail information as to your problem, what have you done as diagnosis, if any at all.

Dec 19, 2016 | 2002 Mercury Mountaineer

1 Answer

1999 mercury mountaineer can not get key to link with pats no spark and no fuel


PATS doesn't disable spark or fuel . disables starter circuit !

Nov 02, 2016 | 1999 Mercury Mountaineer

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02 MOUNTAINEER WON'T START BUT TURNS OVER


Get a fuel pressure gauge and check the pressure at the fuel rail. Also have some one open the gas cap and listen when you turn the car to on and not start and try to hear if the fuel pump is priming. You will hear a quick whirl of the motor. Chances are your fuel pump went out. It could be a clogged fuel filter but doubt it. If you have fuel pressure at your rail check your PATS system. something might have gone haywire.

Mar 05, 2015 | 2002 Mercury Mountaineer

1 Answer

How do I deactivate antitheft in my 2001 mercury courgar


It's part of the security system, PATS, this cant be defeated

Jan 12, 2015 | 2001 Mercury Cougar

1 Answer

Mercury Mountaineer car alarm sounds for no reason


Try using the doorkey after the door has been closed as if you did not have power locks. But most of the time, its automatic with the antitheft.

A shorting battery can activate the antitheft system. Have the battery tested.

Feb 04, 2014 | Mercury Mountaineer Cars & Trucks

2 Answers

I have a99 mercury mountier with anti theft problems some times it won't start with out resting the system through the door lock click 3 times what's up?


are you using a copy of the original key

you need to use the original key for the car

Antitheft and Alarm Systems: Description and Operation
ANTI-THEFT
The passive anti-theft system (PATS) uses radio frequency identification technology
to deter a driveaway theft. Passive means that it does not require any activity from
the user.
The PATS uses a specially encoded ignition key. Each encoded ignition key contains a
permanently installed electronic device called a transponder. Each transponder
contains a unique electronic identification code, with over 72 million billion
combinations.
Each encoded ignition key must be programmed into the vehicle powertrain control
module (PCM) before it can be used to start the engine. There are special diagnostic
procedures that must be carried out if new encoded ignition keys are to be
configured.
The encoded key is larger than a traditional ignition key. The key does not require
batteries and should last the life of the vehicle.
The transceiver module communicates with the encoded ignition key. This module is
located behind the steering column shroud and contains an antenna connected to a
small electronic module. During each vehicle start sequence, the transceiver module
reads the encoded ignition key identification code and sends the 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 engine enable. The PCM initiates the key interrogation sequence
when the vehicle ignition switch is turned to ON or START.
The PATS function uses the PCM to enable or disable the engine. All elements of 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.
PATS uses a visual theft indicator located on top of the instrument panel. This
indicator will prove out for three 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 three seconds) when the ignition
switch is turned to ON or START. PATS also "flashes" the theft indicator every two
seconds at ignition OFF to act as a visual theft deterrent.
The PATS is not compatible with aftermarket remote start systems, which allow the
vehicle to be started from outside the vehicle. These systems may reduce the vehicle
security level, and also may cause no-start issues. Remote start systems must be
removed before investigation of PATS-related no-start issues.

The PATs key is used on the following Ford family trucks and suvs:

FORD: 1996-2001 MUSTANG, TAURUS
1998-2000 CONTOUR
1998-2001 CROWN VICTORIA
2000-2001 FOCUS
2002 THUNDERBIRD
1997-2001 EXPEDITION
1998-2002 EXPLORER
1999 F-250 LD
1999-2001 F-150, RANGER, WINDSTAR
2000-2001 EXCURSION
2001 ESCAPE
LINCOLN: 1997-1998 MARK VIII
1998-2001 CONTINENTAL, TOWN CAR
2000-2001 LS
1998-2001 NAVIGATOR
2002 BLACKWOOD
MERCURY: 1996-2001 SABLE
1998-2000 MYSTIQUE
1998-2001 GRAND MARQUIS
1999-2001 COUGAR
1998-2002 MOUNTAINEER

Additionally, PATs can be found on the follow Ford family cars and mini-vans:

1998-up Contour
1997-up Crown Victoria
1999-up Escort
2000-up Focus
1996-up Mustang and Taurus
1998-up Windstar
1998-up 2000-up Lincoln LS
1998-up Lincoln Mark VIII, Lincoln Continental and Lincoln Town Car
1997-up Mercury Grand Marquis
1998-up Mercury Mystique
1996-up Mercury Sable

Following are the instructions for programming a blank key (you must have at least one working key for this procedure).

The PAT

1. Make sure you have both keys.
2. Turn on car but don't start. Watch "theft" indicator untils it goes out.
3. Turn off and repeat procedure with second key.
4. After "theft light goes out, insert new key and turn on.
5. Wait until the theft indicator goes off and then turn off switch.
6. Wait thirty seconds. New key is now programmed into security module. Repeat for any other keys.


1. Erase any old codes by entering the factory code.(buttons will light up)
2. Press 1/2 button within 5 seconds.
3. Press 7/8 and 9/0 buttons at the same time within 5 seconds.

To set new code:

1. Enter factory code (numbers will light up)
2. Press 1/2 button within 5 seconds.
3. Enter personal 5 digit code(decide beforehand) within 5 seconds of each previous one.
To unlock all the doors,press the 3/4 button within 5 seconds of the driver door unlocking.
To lock all doors and set alarm system,press 7/8 and 9/0 at the same time.
To disarm or reset a triggered alarm,just enter personal or factory code.

Do not set a code with five of the same consecutive numbers. It's too easy for thieves to figure out.

Deactivating and Activating Autolock

To deactivate the "autolock":
With all doors and tailgate closed but NOT locked,and ignition OFF.
1. Enter 5 digit code
2. While holding 7/8 button in, press and release the 3/4 button.
3. Release 7/8 button
The horn will chirp once if the "autolock" was deactivated
or two times if "autolock" was activated.

To reactivate the system,repeat steps 1 thru 3

Alternate Method To Deactivate And Activate Autolock

Do steps [1] through [5] (below) within 30 seconds or you'll have to do it over. If you have to do it over, wait 30 seconds between attempts.
Close all doors securely.

1.Turn the ignition key to ON.

2.Press the power door UNLOCK control THREE times.

3.Turn the ignition key from ON to OFF.

4.Press the power door UNLOCK control THREE times.

5.Turn the ignition key back to ON .The doors should lock and unlock.

6.Press the power door UNLOCK control. The horn should chirp ONCE to confirm successful switching of the autolock system

Troubleshooting:

The engine does not start and LED remains off.
1. Check PATS system fuses
2. If alarm is fitted check if LED functions for alarm: if not check cigar lighter fuse (also used for LED)
3. If not go to main dealer

Engine does not start: LED flashes rapidly Leave ignition on until the LED starts to flash a 2 digit code: (sequence- pause-sequence)
Check the following codes:
Code flashes:
1:3 Key code not received. Is key screened by other keys or objects? Try different key: if okay then first key is faulty. If not go to main dealer
1:4 Partial code only received. Try again. If not okay use different key. If not go to main dealer
1:5 Key not programmed into PATS. Program key as above using master
1:6 Faulty link between PATS module and EECV Go to dealer .

Dec 05, 2010 | 1997 Mercury Mountaineer

2 Answers

2002 mercury mountaineer 4.0 starter relay location


The power distribution box is
located in the engine compartment.
The power distribution box contains
high-current fuses that protect your
vehicle’s main electrical systems
from overloads.
The starter relay is in position #56 of that box.

Mar 23, 2009 | 2007 Mercury Mountaineer

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