Question about 2003 Mercury Grand Marquis

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I recently had to change my steering column with the exact column and reset the computer by turning the ignition three times waiting til anti theft went off. How do i reset the antitheft device and synce the computer with the car?

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This has to be done by ford dealership. There's a ignition key immobilizer around the ignition cylinder that isn't recognizing the chip in the key, also the p.c.m doesn't recognize the immobilizer.this all has to be paired by a ford computer. Or if you still have the old steering column, use the old immobilizer swi

Posted on Jun 12, 2014

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Posted on Jan 02, 2017

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SOURCE: Anti-theft system stuck triggered

Doing roadside assistance I have ran into this problem several times and if you look in your owners manual it will tell you how to reset it. Some of the cars you have to wait up to 10 min. with the key in the ignition and try again. The light will go out. READ carefully our owners manual.
Hope this helped....Kevin

Posted on Jan 31, 2009

  • 2030 Answers

SOURCE: replaced ignition switch, now having problems shifting and the ca

Either something came lose as it was not installed properly or something was dropped in the column to jam things up

Posted on Aug 27, 2009

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SOURCE: AYE YAY mother has

No even. If you take the column apart get it to crank it has theft deterant system that shuts fuel and spark down

Posted on Apr 12, 2011

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SOURCE: my 2000 grand marquis anti theft system wont shut off at times unless i slam my door until the anti theft light stops blinking?

now my car wont start at all the theft light on the dash flashes rapidy when ignition is on it will crank but not run??

Posted on Nov 02, 2012

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Changed steering column with another one , everything comes on but wont start.

Did you put the original anti-theft module on the new steering column ? Does yours have steering column mounted ignition switch ? Vehicles with steering column mounted ignition switches have the exciter integral with the theft deterrent control module (VTD) which is located within the steering column.

Aug 29, 2015 | 2004 Pontiac Montana

1 Answer

2003 cadillac deville, how do I deactivate anti theft system?

According to RepairPal: "the car wont start due to anti-theft system, it will say wait three minutes then start, but repeat this process 4-5 times - Visitor"

They say there are 75 reports of: "Problems with the anti-theft systems using the raised-chip key can prevent the car from starting. The wires in the steering column to the ignition lock cylinder tend to break. The the key and ignition lock cylinder must be replaced to correct this condition."

May 03, 2015 | 2003 Cadillac Deville

1 Answer

Where Is the anti theft module

Passive Anti-Theft System (PATS) Transceiver module is around the key lock cylinder behind or under the plastic cover on the upper steering column'
Passive Anti-Theft System (PATS) Transceiver Removal
  1. s4h~tr~en~file=ani_caut.gif~gen~ref.gif CAUTION: Electronic modules are sensitive to electrical charges. If exposed to these charges, damage may result.
    Disconnect the battery ground cable, Refer to Section 414-01
  1. Remove the ignition switch lock cylinder.
    1. Insert the ignition key into the ignition switch lock cylinder and turn to the RUN position.
    1. Push the ignition switch lock cylinder release tab with a punch while pulling out the ignition switch lock cylinder.
    2. If equipped, remove the tilt wheel handle.
    3. Remove the upper and lower steering column shrouds.
      1. Remove the screws.
      1. Remove the upper and lower steering column shroud.
      2. Remove the lower instrument panel steering column cover.
        1. Remove the screws.
        1. Remove the lower instrument panel steering column cover.
        2. Remove the instrument panel steering column opening cover reinforcement.
          1. Remove the bolts.
          1. Remove the instrument panel steering column opening cover reinforcement.
          2. Remove the anti-theft transceiver module.
            1. Remove the screw from the bottom of the transceiver module.
            1. NOTE: Only apply pressure or leverage below the key cylinder lower rib.
              Disconnect the electrical connector and remove the module.

Dec 24, 2014 | 2006 Ford Taurus

4 Answers

I changed out the steering column in my 1999 silverado now it will turn over but will not start.its getting gas but no spark from coil packs and security lite is blinking. how do i find problem

You will have to "relearn" the new steering columns key tumbler code. Follow the steps below exactly and the new code will be accepted.
Make sure you have a battery charger on the battery so the truck battery will not drain. If the battery goes dead, you will have to start over. Read the instructions below carefully and follow exact.
1st, Turn the ignition switch to the ON position, DO NOT attempt to start the truck. Leave the key in the ON position for 10 full minutes.
After the first 10 minutes is up, rotate the key to the OFF position and leave it there for a count of 3.
2nd, Turn the ignition switch back to the run position again for 10 minutes, again DO NOT try to start the truck and leave it in the ON position.
3rd, You will have to repeat the same step for an additional 10 minutes. This will be a total of 30 minutes. After this final 3rd step, turn the key to the OFF position for a count of 10, then turn the key to the start position and the truck will start, the key tumbler code is now relearned to clear the theft mode.
Good luck.

Oct 08, 2014 | 1999 Chevrolet Silverado 1500

2 Answers

My anti theft light is on and my car won't start

try to start the car then leave the ignition on for exactly 10 minutes then turn the key off(anti theft will stop flashing). and try to start it again..... might take three tries

Dec 10, 2013 | 1996 Chevrolet Cavalier

1 Answer

My ignition messed up ended up replacing the whole steering column and now the car will attempt to turn over but will not start........what should I do???

anti theft system enabled. try to start it then leave the key in the on position may take 11-15 mins til the light goes out for it to relearn the new ignition cylinder. may take 2 tries when the light goes out turn it off then try starting it.

Jul 03, 2010 | 2002 Pontiac Sunfire

2 Answers


put key in ignition in On position for exactly 10 minutes (do not start) wait til anti-theft/security light turns off. Then immediately start the car. This will reset the system

Oct 07, 2009 | 2000 Cadillac Escalade

2 Answers

1996 Oldsmobile Achieva: Security light flashes upon startup

Here is what you do, but only when the SECURITY light flashes - if it is always ON or OFF it's no use.
Turn the key in the ignition to ON.
Wait for exactly 10 minutes ( SECURITY light will flash for 10 minutes and then stay on SOLID)
Turn the key to OFF
Wait 5 seconds.
Turn the key in the ignition to ON.
Wait for exactly 10 minutes.
Turn the key to OFF
Wait 5 seconds.
Turn the key in the ignition to ON.
Wait for exactly 10 minutes.
Turn the ignition OFF.

Start the car normally.
It has relearnt the keycode and you're good to go.
NOTICE - it takes 30 minutes to relearn, that's THREE cycles of ON - 10 minutes - OFF.

Good luck.

Jul 11, 2009 | 1996 Oldsmobile Achieva

1 Answer


Three cycles of ON-OFF:
Turn ignition ON, wait for 10 minutes.
Turn ignition OFF
Turn ignition ON, wait for 10 minutes.
Turn ignition OFF
Turn ignition ON, wait for 10 minutes.
Turn ignition OFF
Your system is reset and has been relaernt.

Hope this helps,
Please rate the solution,

Jun 30, 2009 | 2003 Oldsmobile Alero

2 Answers

Lincoln mark wont start.....

ive tried turning the ignition on and off three times or so....then turning it off completetly for about five secs and then turning the ignition all the way on and most of the time it starts up....but sumtimes i think this car has a mind of its own......

Jul 07, 2008 | 1996 Lincoln Mark VIII

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