2001 ford focus has no power from the green wire on the ignition switch that signals the PATS system. The Anti-Theft light is NOT flashing but the car will not start or crank. the instrument cluster is powering and the clutch switch is functioning. I jumped the starter and it cranked but no start..... please help!!!!!!!!

Forget the other flash codes, this is the main one you need to diagnose an fix.

B1681 PATS Transceiver Module Signal is Not Received PCM GO to Pinpoint Test E .
Do you know how to do electrical testing using a Voltmeter?

E2 CHECK THE PATS TRANSCEIVER FOR VOLTAGE CIRCUIT 16 (RD/LG)
PATS Transceiver C2097
Measure the voltage between the PATS transceiver C2097 pin 2, circuit 16 (RD/LG), harness side and ground.

• Is the voltage greater than 10 volts?

Yes GO to E3 .

No REPAIR the supply circuit. CLEAR the DTCs. TEST the system for normal operation

You can't just change parts an expect it to work , software , modules won't let it work . You have to take it to the dealer or have a mobile lock smith fix it , reprogram it ETC...
Anti-Theft -Passive Anti-Theft System (PATS) The passive anti-theft system (PATS) contains the following components:

• theft indicator
• encoded ignition key
• PATS transceiver module
• powertrain control module (PCM)
• standard corporate protocol (SCP) communication network
• Passive Anti-Theft System (PATS) -Diagnostic Trouble Codes (DTC) Index Powertrain Control Module Diagnostic Trouble Code (DTC) Index DTC Description Source Action B1213 Anti-Theft Number of Programmed Keys is Below Minimum PCM GO to Pinpoint Test F . B2431 Transponder Program Failure PCM VERIFY if using correct PATS key, if defective USE new key. B1342 ECU is Defective (EEFROM in PCM not working) PCM INSTALL a new PCM. REFER to Section 303-14 . B2103 Antenna Not Connected PCM GO to Pinpoint Test A . B1600 PATS Ignition Key Transponder Signal is Not Received PCM GO to Pinpoint Test B . B1601 PATS Received Incorrect Key-Code From Ignition Key Transponder PCM GO to Pinpoint Test C . B1602 PATS Received Invalid Format of Key-Code From Ignition Key Transponder PCM GO to Pinpoint Test D . B1681 PATS Transceiver Module Signal is Not Received PCM GO to Pinpoint Test E . - All Other DTCs PCM REFER to Section 419-10 .

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

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 .

Is the red light on the top center of the dash pad flashing fast when trying to start ? The engine doesn't turn over ?
Anti-theft system problem !
PATS uses a visual theft indicator. This 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. PATS also "blips" the theft indicator every two seconds at ignition OFF to act as a visual theft deterrent.
PATS differs from the perimeter anti-theft system in that PATS enables and disables the engine from starting. If equipped, the perimeter anti-theft system protects the perimeter of the vehicle (doors, hood and trunk) and sounds an alarm.
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.

No where in the DTC - description does it say anything about replacing any modules . An does not have anything to do with a communication problem ! You need a professional grade scan tool to communicate with the PATS system ! An if you don't know these thing's you better take it to pro !!!!!!!
P1260 - Theft Detected - Vehicle Immobilized Indicates that the passive anti-theft system (PATS) has determined a theft condition existed and the engine is disabled. This DTC is a good indicator to check the PATS for DTCs.

• Previous theft condition
• Anti-Theft System failure

Theft indicator flashing rapidly or on solid when ignition switch is in the ON position. Check anti-theft system for DTCs. Typical vehicle symptoms are: Start/Stall or Crank/No Start. NOTE: No crank symptom only on vehicles equipped with PATS starter disable feature

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 .

the light blinks when the system is armed. Normal.

Your key has to be able to communicate with the receiver in the ignition area. Does your other key work ok?

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.

• During each vehicle start sequence, the ignition key identification code is requested by the PATS module.
• If the key's ID code has been programmed into the system, the vehicle powertrain control module (PCM) (12A650) is allowed to operate; this allows the vehicle to start.
• If the key's ID code is not programmed into the PATS module, or if no encoded key is detected, then the vehicle PCM is disabled.

The PATS module, located under the driver side instrument panel, communicates the state of the security system to the PCM via the module communications network. The PCM, based on the communications from the PATS module, will determine if the vehicle's engine will be enabled to start. If the PCM prevents the vehicle from starting because of PATS, the PCM will store a DTC in memory.
-------------------------------------------------------------------------
The anti-theft vehicle protection system utilizes the THEFT indicator, located in the instrument cluster (10849), when the ignition switch is turned to the RUN/START position. The indicator provides system prove out and operating status to the customer or technician.
Each PATS ignition key holds electronics that give each key a unique ID code.
The PATS will activate the indicator signal when the ignition switch is turned to the RUN/START position. The THEFT indicator will turn ON for two seconds, then turn OFF.
If the THEFT indicator flashes for one minute or more, this indicates that there was no key code received.
When the vehicle ignition switch is placed in either RUN or START, the PATS module requests the ignition key ID code. The PATS module requests the ignition key ID code by supplying power, ground, and the carrier signal to the transceiver to energize the ignition key. After the energize period, the key transmits its ID code to the transceiver module, which sends it to the PATS module.
The PATS module then compares the received KEY ID code to those stored in memory (16 maximum). If the ID matches, the PATS module sends an enable signal to the PCM over the module communication network.
The passive vehicle protection system utilizes the engine management capabilities of the PCM to enable or disable the vehicle engine. The module communication network is used to send and receive messages to and from the PCM.
Within one second after engine start, the PCM must receive an enable signal from the PATS module through the module communication network or the engine is disabled before the vehicle can be moved.
If the PATS module recognizes a stored ignition key code but there is a module communication network concern preventing the PCM from recognizing the start enable signal from the PATS module, the vehicle engine will be disabled. If this happens, the PATS module will flash the THEFT indicator for one minute, then flash diagnostic trouble code 16 ten times to indicate there is a problem with the module communication network circuits or the PCM is not responding properly.
The passive vehicle protection system 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.
• Control module concern.
• Module communications network concern.
• ----------------------------------------------------------

Key Programming —Spare Key NOTE: Before starting this procedure, make sure the key(s) you want to program have the correct mechanical cut.
NOTE: Performing this procedure does not erase existing programmed keys.

1. Insert the programmed key in the ignition. Turn to RUN.

1. THEFT indicator proves out after two seconds.

1. Remove the programmed key.

1. Within 15 seconds, insert the new key in the ignition and turn to RUN.

1. THEFT indicator proves out after two seconds.

1. The extra key is now programmed.

------------------------------------------------------------------------------------
Key Programming —New Key (Without Diagnostic Tool) NOTE: Before starting this procedure, make sure the key(s) you want to program have the correct mechanical cut.

1. Insert the nonprogrammed key in the ignition and turn to RUN.

1. THEFT indicator flashes rapidly.

1. After 15 minutes of flashing, the THEFT indicator will stop flashing.

1. Within five minutes after the THEFT indicator has stopped flashing, turn the ignition key to OFF and back to RUN.

1. After 15 minutes of flashing, the THEFT indicator will stop flashing.

1. Within five minutes after the THEFT indicator has stopped flashing, turn the ignition key to OFF and back to RUN.

1. After 15 minutes of flashing, the THEFT indicator will stop flashing.

1. All originally programmed keys are now erased, and only the key in the ignition is programmed.

1. Additional keys may be programmed; refer to Key Programming—Spare Key .

---------------------------------------------------------------------------------------

theft light should be flashing when system is armed. It should reset itself. If on steady, you have a probelem. Try your other key first. This inof should help you. Report back if you still need help.

Anti-Theft —Passive The passive anti-theft system (PATS) contains the following components:

• theft indicator
• encoded ignition key
• PATS transceiver module
• powertrain control module (PCM)
• standard corporate protocol (SCP) communication network

--------------------------------------------------------------------------------
Principles of Operation
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 out of over 18 billion, billion combinations.
The passive anti-theft system (PATS), also known as SecuriLock ®, uses radio frequency identification technology to deter a driveaway theft. This system is known as Securilock® in North America, Safeguard® in the U.K., and PATS in Continental Europe. Passive means that it does not require any activity from the user.
The SecuriLock® System (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. If equipped the remote start system must be removed before investigation of PATS-related, no-start issues.
Each encoded ignition key must be programmed into the vehicle's powertrain electronic control (PCM) before it can be used to start the engine. There are special diagnostic repair procedures described in this section 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 the 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 Unlimited Key Mode Programming in Key Programming Switch State Control in this section.
The PATS transceiver module communicates with the encoded ignition key. The module is located behind the steering 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 concern, 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 following will activate the PATS and will disable the vehicle from starting:

• incorrectly encoded ignition key
• damaged encoded ignition key
• unprogrammed key
• non-encoded key (key has no electronics)
• damaged wiring
• damaged transceiver
• damaged PCM

Inspection and Verification

1. Verify the customer concern by operating the system.

1. Visually inspect for obvious signs of mechanical and electrical damage.

Visual Inspection Chart Mechanical Electrical

• Large metallic objects, a second ignition key on the same key ring as the PATS ignition key or electronic devices on the key chain that can be use to purchase gasoline or similar items
• Ignition lock cylinder
• PATS key
• Use of a non-PATS key
• More than one PATS key on key chain

• Central junction box (CJB) fuse 16 (15A)
• Battery junction box (BJB) fuse 20 (15A)
• PATS transceiver module
• Ignition switch
• Loose or corroded connection(s)

i know this worked with my 99 navigator 32 valve used a viper car starter.

Lincoln

Navigator

1997-2003

Remote Starter Wiring Colors and Notes

Function
Vehicle Color
Location

Start:
RED/LT. BLUE
IGNITION SWITCH HARNESS **

Ignition #1:
D BLUE/GREEN
IGNITION SWITCH HARNESS

Ignition #2:
GRAY/YELLOW
IGNITION SWITCH HARNESS

Ignition #3:
RED/BLACK
IGNITION SWITCH HARNESS***

Accessory:
BLACK/LT. GREEN
IGNITION SWITCH HARNESS

Brake Light:
L GREEN (+)
AT SWITCH ABOVE BRAKE PEDAL

Tach Signal:
WHITE/PINK
AT POWERTRAIN CONTROL MODULE *

Parking Lights:
BROWN (+)
AT HEADLIGHT SWITCH

Headlights:
RED/YELLOW (+)
AT HEADLIGHT SWITCH

OEM Alarm Disarm:
D GREEN/PURPLE (-)
DRIVER KICK PANEL

OEM Alarm Arm:
N/A


Diesel Glow Plug:



Clutch Bypass Wire:



Notes:
* Powertrain Control Module (PCM) Located On Passenger Side Of Engine Compartment On Passenger Wheelwell. This Wire Can Also Be Found At the Firewall Harness On the Driver's Side of Vehicle. ** This Vehicle Is Equipped With Ford's PATS Anti-Theft System. Use Universal Alarm Bypass Module part # 2x402 where X can be any number. *** Must power ign3 using a relay. Tap relay coil to ign3 connection of remote start along with bypass module. No diode isolation is required.