Question about Chrysler Sentry Key Immobilizer Bypass for Remote Start

1 Answer

Chrysler Voyager Sentry Key Immobilizer System Problem

Does anyone know if there is a bypass system for these compatible with a '98 model? And who would supply them in Australia?

The car randomly immobilizes when starting it. Mechanics dont know what the problem is and want to go through a process of replacing things at considerable cost. Its going to be cheaper to bypass it if possible.

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  • 2 more comments 
  • pixiefreak Feb 01, 2010

    Thanks for your response. The key is grey.

  • pixiefreak Mar 03, 2010

    We do have 2 working keys and still need to bypass it. Is there some way we could contact you through email for more details on buying the kit from you?

  • MECP Guy
    MECP Guy May 11, 2010

    I can get it for you but first is your ignition key black or grey, because if it is grey you have a transponder but if it black then this will not help you

  • Steve B Jul 26, 2012

    I am in the same situation, I have 2 grey keys. and having issues and need a bypass.

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  • 344 Answers

If your key is grey, and you would like to bypass the transponder system you need 2 working keys to program it, this kit comes with a bypass box, and a transponder loop, and only has 2 wires to hook up. Let me know if you still need to bypass it

Posted on Feb 02, 2010

  • Steve B Jul 26, 2012

    What is this solution to bypass the transponder system? I am having a similar problem.

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1 Answer

How can i bypass the skim made by siemens


There is no way you can. The immobiliser is there to stop EXACTLY what you are trying to do. There is a chip in the key, a chip in the ignition lock and if both are present the ECM releases power to the ignition system.

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Tip

How to program Chrysler Remote Transmitter


A Chrysler Transponder Key once programmed into a one car cannot be programmed to work any other car.

The transponder code identification is learned by the Sentry Key Immobilizer Module during programming. The Sentry Key Immobilizer Module sends the "Secret Code" to the transponder key and is retained by the transponder key during programming. After programming of the transponder key identification to the Sentry Key Immobilizer Module and the Secret Code is exchanged, the Sentry Key Immobilizer Module will ask for the transponder identification and the Secret Code every time the key is turned to ON or START.



No Emergency "Start" procedures for Chrysler vehicles.



Chrysler Key Operation and Programming



Model: 300 Year: 2005 - 2008

Model: 300C Year: 2005 - 2007



Remote alarm / central locking



System Operation



  • Pressing key LOCK button activates alarm and central locking.


  • Pressing key UNLOCK button once deactivates alarm system and unlocks driver's door.


  • Pressing key UNLOCK button twice within 5 seconds deactivates alarm system and unlocks all doors and trunk.


  • Pressing trunk lid button twice opens trunk lid.


  • System will automatically lock all doors when vehicle is driven above 15 mph.


  • Additional functions can be set to respond to the transmitter.


Programming



When



  • Key transmitter added or replaced.


How



  • Key transmitter is programmed during immobilizer programming procedure.


Immobilizer

System Operation



  • Switch ignition ON.


  • Immobilizer warning lamp illuminates for approximately 3 seconds.


Programming



When



  • Keys added or replaced.


How:



NOTE: Two programmed key transmitters must be available for the following procedure to operate. If none available key transmitters can only be programmed using diagnostic equipment.



  • Insert first programmed key into ignition switch.


  • Switch ignition ON for at least 3 seconds but no longer than 15 seconds.


  • Turn ignition OFF and remove key.


  • Withing 15 seconds insert second programmed key into ignition switch and turn ignition ON.


  • After 10 seconds an acoustic signal will be heard and immobilizer warning lamp will flash.


  • Turn ignition OFF and remove second programmed key.


  • Within 60 seconds insert non programmed key into ignition switch and turn ignition ON.


  • After 10 seconds an acoustic signal will be heard and immobilizer warning lamp will illuminate for 3 seconds.


  • Switch ignition OFF.


  • Remove Key.


Check operation of programmed key transmitter.

Repeat procedure for additional key transmitters if required.





Model: 300M Year: 1999 - 2003

Model: Concorde Year: 1998 - 2003

Model: LHS Year: 1998 - 2001

Model: PT Cruiser Year: 2000 - 2005





Remote alarm / central locking



System Operation



  • System will automatically lock all doors when vehicle is driven above 15 mph.


  • Pressing remote transmitter UNLOCK button once deactivates alarm system and unlocks driver's door only.


  • Pressing remote transmitter UNLOCK button twice within 5 seconds deactivates alarm system and unlocks all doors.


  • Alarm / Central locking functions can be altered using remote transmitter.


Programming

When



  • Remote transmitter added or replaced.


How:

NOTE: One programmed Remote transmitters must be available for the following procedure to operate.



  • Obtain all remote transmitters.


NOTE: Any existing remote transmitters not used during programming will become inoperative.



  • Switch ignition ON.


Using a programmed remote transmitter proceed as follows.



  • Press and hold remote transmitter UNLOCK button.


  • After holding the UNLOCK button for at least 4 seconds but no longer than 10 seconds, press remote transmitterPANIC button for at least 1 second and release both buttons.


  • Ensure acoustic signal is emitted indicating programming mode active.


  • Within 30 seconds carry out the following procedure for each remote transmitter (including previously programmed remote remote transmitter)


  • Press any button of each remote transmitter to be programmed.


  • Ensure acoustic signal is emitted after each remote transmitter operation.


  • Programming must be completed within 30 seconds.


  • Switch ignition OFF or wait 32 seconds to exit programming mode.


Ensure final acoustic signal is emitted.

Replacement remote transmitters can also be programmed using diagnostic equipment.



Immobilizer



System Operation



  • System arms after switching ignition OFF.


  • Switch ignition ON.


  • Immobilizer warning lamp illuminates for approximately 3 seconds.


Programming



When



  • Keys added or replaced.


How

NOTE:Two programmed key transmitters must be available for the following procedure to operate.



  • Obtain all keys.


  • Using first programmed key turn ignition switch ON and wait 3 seconds, return to OFF position and remove key.


NOTE: First and second programmed key operations MUST be performed within 15 seconds.



  • Insert second programmed key and switch ignition ON.


  • Wait approximately 10 seconds.


  • Ensure immobilizer warning lamp begins to flash and an acoustic signal is emitted.


  • Switch ignition OFF and remove key.


  • Within 50 seconds, insert new key and switch ignition ON.


  • Wait approximately 10 seconds.


  • Ensure acoustic signal is emitted and immobilizer warning lamp remains illuminated for 3 secondsindicating programming completed.


For each additional key repeat procedure starting from the beginning.

Replacement keys can also be programmed using diagnostic equipment.



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