transponder based bypass method

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gr8snk

Member - Posts: 3

Joined: October 17, 2006

Posted: March 28, 2007 at 12:42 AM / IP Logged

I found this diagram of a method for bypassing most transponder based oem anti-theft security systems. Have any of you tried such a thing and is it feasible and if it is, what is used to wrap around the key and cylinder? I have a 98 mustang with PATS and was wondering if it was worth the try. Any feedback is appreciated.

gr8snk

Member - Posts: 3

Joined: October 17, 2006

Posted: March 28, 2007 at 12:54 AM / IP Logged

transponder based bypass method -- posted image.

customak47

Copper - Posts: 164

Joined: October 25, 2005

Location: Vanuatu

Posted: March 28, 2007 at 4:19 PM / IP Logged

I use this method all the time instead of the 556u. the nice thing is that you are custom making the coil around the key and around the lock cylinder, so there is no loss of signal from loose coil. The only issue I have ever had is a handful of ford keys when it got REALLY cold would not start. With the 04 grand prixs, if it sees two keys at the same time it will trip the theft code, so you have to use another relay to disconnect off the keysense wire. You leave the insulation on the wire because the ignition senses the transponder with a magnetic field. WORKS GREAT, SCREW DEI!!!

My rifle is my friend...

docsautomotive

Copper - Posts: 66

Joined: May 07, 2006

Location: Louisiana, United States

Posted: March 30, 2007 at 10:01 PM / IP Logged

i love DEI let someone else take the heat

never stop

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mrcanngo

Copper - Posts: 63

Joined: March 17, 2007

Posted: March 31, 2007 at 11:06 AM / IP Logged

how do we know what vehicles this diagram works with? should it work for all or is there something i should look for? I'm intersted in doing my friends 05 chevy cobalt this way. It has gm passlock 2 on it and i'm not sure if this woudl work. Will it?

peterubers

Silver - Posts: 706

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Joined: December 29, 2006

Location: United States

Posted: March 31, 2007 at 2:37 PM / IP Logged

Should technically work with all vehicles b/c it's basically just a homemade amplifier of a tiny/weak radio signal from the OEM key.

The search function is your friend.

mikvot

Gold - Posts: 1,043

Joined: December 19, 2006

Location: Missouri, United States

Posted: March 31, 2007 at 11:11 PM / IP Logged

The passlock 2 system in the 05 cobalt is a resistor based, not transponder like pk3........so, it will not work. Mrcanngo, i do have diagram to bypass the system without a module if you need it.

mrcanngo

Copper - Posts: 63

Joined: March 17, 2007

Posted: April 01, 2007 at 7:33 PM / IP Logged

yes please! that would be much appreciated.

green6767

Copper - Posts: 209

Joined: October 28, 2005

Location: United States

Posted: April 01, 2007 at 10:23 PM / IP Logged

Also will not work with BMW systems....need specific parts for that.

Shaun, we are the same height, that is neat!

12V Installation Technician for Honda, Dodge, Chrysler, Toyota and Jeep.

voluster

Member - Posts: 20

Joined: July 22, 2006

Location: United States

Posted: April 02, 2007 at 2:04 PM / IP Logged

I've been replacing this hack stuff ever since we took this place over from the guy that owned it before us.

I like guys that do stuff like this Keeps me Employed

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