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How can start my vehicle with the. Ignition switch removed using a broke key that has a chip in it?

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Gm dealers have a method of using the data port and there software , but that's only to verify that other things are working ok u cant drive it like that (machine needs to stay connected 4 it too run ) key and lock needs to be replaced if damaged

Posted on Dec 16, 2016

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Posted on Jan 02, 2017

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1 Answer

Prostart locks and unlocks but won't start truck


Two things, Some Chev's have a security key that will only start the car when the ignition finds the ID chip in the handle of the key, when some places install remote starters they take the ID chip from the key and glue or tape it to the ignition switch so the remote starter will start the car without the key in it. I have seen some of the glue and or tape give out and the little chip falls far enough away from the ignition switch that it cannot find it and thus will not start. this is why it will work with the key in the ignition, You will have to find a service tech that knows how to remove the chip from your key handle (the plastic you turn when the key is inserted) then place it where the ignition switch can read it correctly. The ID chip is about the size of a grain of rice an is located in a small compartment in the plastic handle of the ignition key it is well hidden but a tech that has worked with this can find it. You could do the same if you get a additional key made for your car and place the key in the steering column very close to the ignition switch, but the new key can cost you in the $50 to $80 range so a tech would be a cheaper choice.
The second thing it may be is a bad isolator relay used in the remote starter, this relay is used by some more expensive remote starters to bypass the security system of the car by other means than placing the ID chip on the ignition switch. This would also need a tech to figure it out. But it should not cost more than $90 to fix by the tech, (less any cost to replace the ID chip or relay).

Nov 12, 2013 | Chevrolet Blazer Cars & Trucks

1 Answer

Car wont turn over after replacing ignition switch


Do you mean the key switch. Read this.

HIGH SECURITY 'CHIP KEY' - By now, most people know their vehicle's high-tech keys are expensive at the car dealers- Now, you can get high-tech keys from us at a fraction of the cost. How does the high-tech key work? The key contains a tiny embedded electronic chip called a transponder. Each transponder has its own unique code--it's the key's 'fingerprint'. When the key is inserted into the ignition and turned, the transponder is energized and broadcasts its unique code to the car's receiver in the dashboard. If the car's receiver recognizes the code, it will allow the car to start. ikeyless.com-----If it is the ignition switch under the dash on top of the steering column it needs to be adjusted right.Go to Autozone.com and make an account and put in your make and model and click on repair manual it will show you everything on the car but you have to make an account it's free

Dec 16, 2011 | 1995 Ford Thunderbird

1 Answer

STARTS BUT SHUTS OFF IN SECONDS? LOST THE IGNITION KEY AND BROKE THE STEERING LOCK TO START THE ENGINE. 1999 CHEVY BLAZER.


When the ignition switch is turned on, the immobilizer control module sends a challenge signal through the antenna around the ignition switch to the transponder chip in the ignition key. The transponder key responds with an encrypted key code. The immobilizer module then decodes the key code and compares it to the list of registered keys. When the engine is started, the ECM sends a request to the immobilizer module over the data bus to verify the key is correct. If an attempt is made to start the vehicle with an invalid ignition key, the immobilizer module sends a message over the data bus to the instrument cluster to flash the anti-theft indicator lamp. If the ECM does not receive a "valid key" message from the immobilizer module within 2 seconds of engine start up, the ECM will disable the fuel injectors to kill the engine. You'll need to get a new key and get it registered in the immobilizer control module. You'll need a scan tool, the VIN number, the date manufactured and a factory-assigned PIN number.

Nov 18, 2010 | 1999 Chevrolet Blazer

1 Answer

The ignition key broke off in the cylinder of my 2004 Saturn Ion. How do I remove the cylinder if the switch is in the off position with the broken key still in it?


If the key is all the way in, it should turn the lock, with a screwdriver. It might not start without a chip if it has one, but if you hold the chip close by it should start, then I would get a pick, a dental tool, something real sharp, fine, hard, and pull the key out. Get a new one made, Hope this helps.

Aug 13, 2010 | 2004 Saturn ION

1 Answer

Car wont start after getting a new key and replacing batteries -


hi well this is a bit long so if you can bare with me i will try explain how to , clear system to decode, and recode as this is what it sounds like that the coding has gone from the ignition key....ok here goe's
to sync key with car depress lock or unlock button manually lock the drivers door within 30 seconds of the above system should now work....if not do next bit
switch ignition on ( using non chip key ) manually lock drivers door using key ( another one, hopefully you will have more than one) press unlock button 5 times, in one second intervals indicators flash 5x for every time signal is received switch ignition off and remove key
that's the de-programming done...
to de-program the system if above fails..........
switch ignition on ( use key without remote ) manually lock drivers door using key to be synced with car complete the following within 30 seconds of doing above within 5 seconds press the unlock button on key indicators should flash once wait 5 seconds press unlock button once to confirm programming vehicle should unlock this also will confirm deactivation of programming mode switch ignition off remove key..that should be it, then try new programed key in ignition.

to re-program system and sync with key switch ignition on manually lock drivers door using key ( another one, hopefully you will have more than one) press unlock button 5 times, in one second intervals indicators flash 5x for every time signal is received switch ignition off and remove key
that should be it, if no joy then will have to main dealer i am afraid...hope this helps

Jun 07, 2010 | 2001 Audi TT

1 Answer

Ya my car igniton broke but the ignition its self has a black what looks like a computer chip in the side of it and a wire running fro mthe ignition to the battery or sumthing i dont know i was just...


hi what this is , is the pick up for the immobilizer system, what happens is when you insert your key into the ignition it disables the immobilizer and allows you to start your vehicle, it does this by, reading the chip that is in your key, when you put the key into the ignition it then matches the code from the key chip to the ignition chip which in-turn disables the immobilizer...what you are seeing is normally hid behind the steering-wheel cowling....hope this helps

Jun 03, 2010 | 1996 Pontiac Grand Am

1 Answer

A would be robber broke into my 99 Dodge 3500 diesel tooka drill to my ignition.I replaced ignition switch and key tumbler now it will not start


if this system has an antitheft control then the key that came with the ign switch may be the wrong key the original key may have a trasponder/chip in it the new key may not have that if it does it would need to be programmed for your vehicle

May 06, 2010 | 1999 Dodge Ram

1 Answer

2003 ford winstar only key broke in the ignition so i replace the the ignition and reprogramed brainbox however vehicle anti theft light keeps blinking when vehicle is on and off


the anti-theft light is supposed to blink when the car is locked to show the system is armed.

Does it flash while driving?

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

May 26, 2009 | 2003 Ford Windstar

2 Answers

Replaced ignition and steering wheel now car wont start -security light on


first of all was the ignition dealer a lot of cars have a start chip built into the key if you did after market it may not be compatible with out bypassing key security chip with out the right key setup the car stays diabled

Sep 11, 2008 | 1994 Buick LeSabre

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