Updated ? TJ Theft Protection ADE/ADE-II w/Light Chaos

[Daless2]

Hi Folks, I have been meaning to put this up for a few days, but internet access has been very erratic here as we have had some horrific weather. F3 Tornado finally was formed less then a 1/4-mile from my home. Luckily no damage on my end but for a few very large tree limbs, but a lot of other folks just a stones through away had more then their share.

Anyway, here is the post I meant to put up a week or so ago. Perhaps some will find it useful.



Updated ? TJ Theft Protection ADE/ADE-II w/Light Chaos


How To Automatically Disable and Enable Your Jeep (1997 ? 2004 TJ -Wrangler)

(This will be posted in sections.)


This document has been completely rewritten to include exact and specific instruction on how to install the ADE System in any Jeep Wrangler TJ 1997 ? 2004 model years.

There are a few other interesting tidbits as well.



An online Web Version of this write-up can be found though the kindness of Oman Jeeper at;

http://www.oman4x4.com/installs.htm

Introduction

Let?s face it; it?s not difficult to steal a Jeep Wrangler.

In truth, Jeeps are probably easier to steal than any other vehicle on or off the road. Easy access, especially with a soft top and plastic windows, doesn?t make the task of protecting a Jeep any easier.

I have developed a simple hidden circuit which I call the Automatic Disable / Enable (ADE) System. This system will automatically disable multiple electrical systems that your Jeep TJ requires to run. (Ignition System, Fuel Pump, Fuel Injectors, Automatic Shut Down relay.)

The ADE System will also allow you to easily enable these same electrical systems with one swipe of a magnet.

The ADE System can be used with any fuel-injected vehicle and many non fuel-injected vehicles.

I will provide detailed instructions on how to build this system and specific instruction on where to install this system on a 1997 ? 2004 Jeep TJ.

If your Jeep is a different model (XJ, YJ, ZJ, ect.) or other fuel injected vehicle you will need to determine where to install the ADE System based on information provided in this write-up and your vehicle Factory Service Manual wiring diagrams.

ADE System Design

Key Features

• All electrical systems attached to the ADE System will be automatically disabled whenever the ignition key is shut off.
  
• There will be ?stealth look? with no visible indicators that the ADE System is installed. (There is no value in giving a thief any clue that a disabling system is installed and must be overcome.)
  
• The ADE System will be installed at a key electrical point in the Jeep to ?disable?, or open, two or more critical circuits which are required to run. (This will make it more complex and difficult to overcome, even if a thief could determine which circuits were disabled.)
  
• The ADE System will ?enable? all circuits when a magnet is ?momentarily swiped? over a reed switch hidden somewhere under the vast amounts of plastic found in a TJ interior.
  
• The ADE System and all Jeep circuits will be self-sustaining when activated and remain so until the ignition key is turned off.

Design Description

The ADE System is designed to be self-disabling. When you turn the Ignition Key ?OFF?, the Jeep cannot be restarted unless and until you momentarily ?swipe? a magnet over a hidden reed switch.

The hidden reed switch is the ?Key?, both figuratively and literally, to this systems success. Only you will know where the reed switch is located as there will be is no outward visual sign.


Take a look around the inside of your Jeep from the drivers seat. See all that plastic?

Pick a spot, any spot, preferably a spot within easy reach of the driver?s seat.

That?s where you are going to mount the reed switch! Underneath, where it can?t be seen and no one knows it is there but you. (And please don?t tell people who don?t have a need to know!)


The ADE System uses one Double Pole / Double Throw (DPDT) relay that is wired to your Jeep?s wiring harness, a diode, a hidden reed switch and a magnet. The relay is inserted in the wiring harness at a point that controls multiple critical circuits required for your Jeep to run.

The DPDT relay is wired in both parallel and series to the reed switch and the Jeep?s critical circuits. This creates a self-latching circuit that allows the DPDT Relay ?Coil? to be maintained in the active state once the relay has been tripped by swiping the magnet over the reed switch. (Once activated, the reed switch is no longer in the circuit.)


In order to start the Jeep after the ADE System is installed you will need to follow this sequence.

• Turn ignition key to the ?On? or ?Run? position
• Swipe a magnet over Hidden Reed Switch (To activate the ADE System and Jeep?s critical circuits)
• Turn Ignition Key to ?Start?

Without swiping the magnet, or knowing where to swipe the magnet, your Jeep will crank over but it isn?t going to go anywhere under its own power.


Automatic Shut Down Relay

The ADE System will either ?interrupt or supply? 12 volts DC to the Coil Side of a critical control relay in your Jeep. This critical control relay is the Automatic Shut Down Relay.

Most fuel-injected vehicles have an Automatic Shut Down Relay. Some manufacturers may call it by another name, but if it?s fuel-injected, and OBDII compliant, your vehicle has this relay.

You will need to find the wire on your Jeep that supplies +12 Volts DC to the Automatic Shut Down Relay coil when the ignition key is turned on. I will be telling you were it is and what it looks like for each year TJ. If you have another vehicle you can install this system but you will have to determine where from your Factory Service Manual.

On the Jeep TJ, the Automatic Shut Down Relay controls lots of stuff. Critical circuits controlled by this relay are:

• Ignition Coil
• Fuel Injectors
• Fuel Pump
• Torque Converter Clutch (If you have an auto trans.)
• Other signals to the Power Control Module (PCM / Computer)

By installing the ADE System ?to control? the Automatic Shut Down Relay Coil, you are controlling (disabling or enabling) all of the above circuits.

Here is a drawing to illustrate the Automatic Shut Down Relay circuit on my 97 Jeep TJ.

If you care to see this entire circuit in detail, for any year TJ it can be found in the Factory Service Manual in the wiring diagram 8W-30.




While there are differences in the exact wire, fuse and connector used to control the Automatic Shut Down Relay, all TJ?s more or less look like this. I will provide the details, by model year for all the TJ?s in this document.

Please take note of the Red Wire that runs between Connector 106 and the Automatic Shut Down Relay. This is the wire that activates the relay ?Coil? on the 97 TJ.

If the relay coil is not activated the Automatic Shut Down relay Controlled Contacts remain in the OFF positions, which DISABLES the critical circuits through the PCM on the bottom of the drawing.

That is why it is called ?Automatic Shut Down Relay?!

It kills these circuits and shuts down the Jeep!!!


ADE System Circuit

Parts and Material List:
Here is a list of the key components you will need to build and install the ADE System and where you can get them. If you want to go mail order you can probably find most of these parts at www.MPJA.com for less then Radio Shack, but obviously you have to pay shipping. It might be worth the effort if you are building more then one unit.





Here is a picture of the three major components you will be assembling.






Here is a picture of the diode. This is Radio Shack # 276-1104, Diode type 1N4005.

If they do not have this one you can substitute diode type 1N914 or 1N414B. Either will work fine in this application.






ADE System Wiring Diagram

This drawing illustrates the ADE System wire connections.




Do you see where it says cut wire?

I will tell you, based on your year TJ where this wire is located during the installation steps to follow.