Question about 2003 Ford Crown Victoria

1 Answer

How do i find key chip module

Have no power to instrument oand car wont start

Posted by on


1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Ford Master
  • 14,585 Answers

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


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

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

Get exact Make/Model of vehicle. Search internet to see how to put BCM (body control module) in learn mode and code it for the key. (For example, some makers ask you to turn ignition on-off-on 3 times).

Sep 28, 2017 | Cars & Trucks

1 Answer

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.

Apr 11, 2016 | Hyundai Cars & Trucks

1 Answer

Do i need a bypass module for my security sustem?

If your car came with a chipped key then yes you need another chipped key your vehical might work for a few days until you get a theft system indicator then your car wont run due to fuel cutoff

Jan 22, 2014 | Cars & Trucks

1 Answer

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

1 Answer

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.

Jan 10, 2013 | 1998 Chevrolet Cavalier

1 Answer

How to reset security on 2000 buick century

If the anti-theft module does not read the right chip in the key, the engine will not crank.
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

1 Answer

1994 buick park ave, wont crank over,

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


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

Jul 17, 2009 | 2002 Hyundai Santa Fe

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

Not finding what you are looking for?
2003 Ford Crown Victoria Logo

40 people viewed this question

Ask a Question

Usually answered in minutes!

Top Ford Experts


Level 3 Expert

76691 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22219 Answers


Level 3 Expert

5537 Answers

Are you a Ford Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides