Question about 2003 Ford Crown Victoria

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How do i find key chip module

Have no power to instrument oand car wont start

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Your security is built in to the instrument panel(IP). There are other parts, but if have no power to the IP. You will have to fix this first. Check fuses. Then remove the IP plug and plug it back in. Corrosion can keep it from getting power. After that you will have to start checking for power and ground to the IP. Also check continuity of the wires.

Posted on Dec 07, 2014

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Posted on Jan 02, 2017

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Loss keys, found key that turns engine but it wont start is there a chip in key or a way to bypass the chip and start truck


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I took Hyundai Trajet to Hyundai dealer, I got another key that unlocks steering and start the motor but wont kick over. Now they say i need a new module, ignition and master key


Your vehicle has an immobiliser as part of the antitheft system. It has a chip in the key and a chip in the ignition lock. When they are paired, they send a signal to the ECM and the ECM checks back to them. If both are present, the ECM releases power to the coils.

The normal way to pair the two chips is to disconnect the battery for 30 minutes and then reconnect. This pairs the chip in the key and the chip in the ignition lock. If the new key you got is just a courtesy key with no chip, then this won't work.

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Passlock light is flashing and wont allow me to start car


The flashing light and the no start condition tell you that the PATS module is not reading the chip code in your key. The problem could be the key, the sensor in the lock cylinder, or the PATS module.

May 16, 2013 | 2003 Chevrolet Cavalier

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2000 cavalier wont start because of antitheft


If the engine will. not crank and the security light is on, the module is not recognizing the chip in the key.
The three possible issues are the sensor in the lock which you say you have replaced, the chip in the key, or the module behind the dash.
You can try a spare key or have a new key made and cross that off the list. That would leave the module in the car.

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How to reset security on 2000 buick century


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That would be a problem with the chip in the key, the sensor in the lock cylinder, or the module.
If it cranks but does not start, its probably not the security system.

Sep 22, 2012 | Buick Century Cars & Trucks

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Pass key is the security system which disables the car if it is stolen. You need the remote or a key with a chip to start the car. go to a dealer, prove ownership with registration and they will be able to help you out

Sep 09, 2009 | 1995 Buick Regal

1 Answer

IMMOBILISER


The key has a micro chip in it that transmits a signal/code to the anti-theft module/immobilizer. There have been cases where the immobiler/module has forgotten wht code it should respond to or the chip in the key has gone bad. Either way the vehicle will have to go to the dealer for repair as they will have to reprogram the immobilizer for the new key and vice versa depending on which of the 2 items went bad. Hope this helps u

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1 Answer

My 2005 f150 wont star my anti theft system is


alarm rearms itself.

this is for 2001 and is similar.

Anti-Theft —PATS The passive anti-theft system (PATS) contains the following components:
  • theft indicator
  • encoded ignition key
  • transceiver module
  • instrument cluster
  • powertrain control module (PCM)
  • standard corporate protocol (SCP) communication network
The PATS uses radio frequency identification technology to deter a driveaway theft. Passive means that it does not require any activity from the user. This system is known as SecuriLock® in North America, Safeguard® in the U.K. and PATS in continental Europe. This information can be found in owners literature.
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's instrument cluster (the instrument cluster is also known as a hybrid electronic cluster [HEC]), before it can be used to start the engine. There are special diagnostic procedures outlined in the workshop manual that must be carried out if new encoded ignition keys are to be installed.
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 electronics module. During each vehicle start sequence, the transceiver module reads the encoded ignition key identification code and sends the data to the instrument cluster.
The control functions are contained in the instrument cluster. 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 instrument cluster initiates the key interrogation sequence when the vehicle ignition switch is turned to RUN or START.
The PATS uses the PCM to enable or disable the engine. The instrument cluster communicates with the PCM over the SCP network in order to enable engine operation. The instrument cluster and the PCM use sophisticated messages in order to prevent a theft. The instrument cluster and the PCM share security data (when first installed together) that makes them a matched pair. After this security data sharing, these modules will not function in other vehicles. The shared PCM ID is remembered even if the battery is disconnected. The instrument cluster also stores the vehicle's key identification code even if the battery is disconnected. There are special diagnostic procedures outlined in this workshop manual that may be carried out if either a new instrument cluster or PCM needs to be installed.
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. 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 (for more than three seconds) 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.
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.

------------------------------------
Visual Inspection Chart Mechanical Electrical
  • Ignition lock cylinder
  • Encoded ignition key (PATS key)
  • Use of non-encoded ignition key (key without the molded plastic head, non-PAT key)
  • Use of a non-programmed encoded ignition key
  • Central junction box:
    • Fuse 2 (5A)
    • Fuse 6 (5A)
    • Fuse 30 (30A)
  • PATS transceiver
  • Connectors
  • Ignition switch

May 11, 2009 | 2005 Ford F-150

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