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Try to start the car and the engine just spins &on the dash it will say theft system problem car my not start

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The passkey security system of the car is malfunctioning, u will need to have the dealer hook up a special electronic scan tool to see what the problem is, most likely if both keys don't work in the ignition (I assume you have tried the spare key) then the receiver in the steering column for the key is defective, that is the most common cause, parts are expensive and time consuming to replace so don't guess here have the dealer run the test, will only take 1 hour of diagnostic time to determine the exact cause, if you don't have a spare key get one made and programmed and try that, any full service locksmith can do this, also if car is 1999 or newer try this passkey reset procedure:

PASSKEY LOCKOUT RESET GM CARS 1999 UP
1) Put the key in the ignition and turn to the "ON" position. Leave it that way for 10 minutes. After 10 minutes turn the key and take it out. Repeat this process (2) more times (3 times, 30 minutes total) This should reset the PASSKEY system to recognize your key.

Posted on Sep 11, 2009

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Posted on Jan 02, 2017

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How do you disable a 2008 Toyota tundra anti theft system


Tip & How-To about Cars & Trucks
Want to bypass your vehicle security system?

The short answer is you can't!

All modern cars have alarms and immobilizers. There is a chip in the key and a chip in the ignition lock. If both are present, the ECM (engine control module) releases power to the ignition circuit. When you turn the key, the starter spins the engine and you get a spark. If any one of those three items are not in the chain, you get the engine to turn, but no spark. There is no way to beat the system.

The immobilizer is in place to stop exactly what you are trying to do. Vehicle theft has reduced to virtually nil.

Posted by Andrew... on Mar 26, 2016

Nov 20, 2016 | 2008 Toyota Tundra

1 Answer

If the anti-theft system was activated by a problem key, would you still be able to turn the lights on ( both head lights & inside lights?)


Yes. Security systems generally only prevent the engine e from starting/running. They do not affect any other systems. Theft system light should be on or flashing if theft system is problem

Oct 18, 2016 | 2006 Toyota Sequoia

1 Answer

99 explorer alarm disables. Motor dies


Anti-theft system can keep vehicle from starting , Alarm is for vehicle content theft , open door without key alarm sounds (horns) ! PATS - passive anti theft system PATS enables and disables the engine from starting ,it will not cause the engine to die ! You have some other kind of problem ! If the vehicle engine doesn't turn over an red light on top of dash flashes fast ,then you have anti-theft system problem !
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.

Aug 17, 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

My car quit while highway driving; now it wont restart. could this be an alternater problem?


The alternator only keeps the battery charged. So if the battery is dead, then yes the alternator could be at fault.
If the engine cranks but does not start, then the alternator is not involved.
And the anti-theft system would not kill the engine, only prevent it from starting.

Sep 03, 2015 | 1999 Mercury Cougar

2 Answers

2003 Lincoln town car anti theft system has me locked out. Will not start


Hi I would reccomend both above suggestions, but when you try taking the positive terminal off give it 5 minutes or so to let your electrical system fully discharge

Jan 18, 2015 | 2003 Lincoln Town Car

2 Answers

Factory installed anti theft & keyless entry system


If is the original key fob, you may need to reprogram it

Jun 29, 2014 | 1999 Mercury Grand Marquis

2 Answers

Engine no start


Do you have another key for the car? Try that. If not you'll have to have the keys programmed to the car at the dealer.

Mar 05, 2014 | 1999 Ford Crown Victoria

1 Answer

I have a 2001 Chevy Malibu that wont start. All of the lights on the dash come on and when they settle.. only the battery and the check engine light are on. It has a full tank of gas and full oil and...


When you turn the key to the start position does the starter spin the engine ? The engine cranks no start ! Or nothing happens when you the key to start position ? no crank no start ? Is the anti-theft light lit on the instrument cluster (SECURITY) ? If the starter spins the engine does spin slow or normally ? Is there spark , fuel pressure ? Testing these thing's would be the place to start if the engine spins ! Videos on youtube showing how !

Apr 14, 2017 | 2001 Chevrolet Malibu

1 Answer

THEFT SYSTEM


Try pulling the fuse. If that doesn't work, you may have to dis-mantel the dash, until you find the box and disconnect it (NOTE: they are NOT easy to get to!). Some will start then but some have to be 'wired around' ie- hook a wire from one side to the other side of the plug, to fool it into believing it has contact (at the door-switch).
BUT- contact a dealer, before you start tearing the dash apart, they may have an easier fix!

Dec 21, 2013 | 1999 Lexus ES 300

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