EWS Immobilizer antenna threadfest

i certainly agree with that remark
i've been around here a long time.... and i love this forum

sorry if i was overly defensive as well

i appreciate your expertise in the matter....
perhaps.... YOU might want to organize a GROUP BUY for the ring antenna?

well.....
fair enough.....
i'm going to be in Atlanta soon.....
how about i stop by and take you to lunch?

sure

And I do what I can for anyone who asks, need/want something look me up. Sometimes I can do alright some would say

i'll look forward to it

This is what I like to see! Two good people working it out!

Jim

excellent
a ring antenna
and some nice pictures to go along with that excellent description above of how to utilize it "in the field"
sounds like a great idea

It's really not that common, you figure out of 400 plus units we've sold with BMSK/can bus and serviced over 1000 plus unique BMSK equipped bikes and we have only had 4 EWS issues that I am aware of (less then 1% opposed to approximately 4+% FD failure). One of those happened to my riding buddy who I was with, I gave him my HP2 and waited for the pickup truck and had to ride home from the Cherohala squashed up in a regular cab truck with Ma/Pa that day, oh well. Funny thing was it started right back up once we unloaded it from the truck, it was an intermitant failure with the antennae and was a really unique case.

I am sure we can work something out, PM me when you're ready. They are starting to come off back order now, I think there was more panic frenzy with the back order issue rather then a couple hundred defective antennae sitting on bikes at dealers waiting for them.

Thanks Bobby! Great info - as always.

I cant take it any more. Would somebuddy please search the internet on how an imobalizer works and educate your selfs. The 'antenna' is just a coil of wire that a small curent is passed though- the sesult, you guest it, a magnetic field! This exites the chip in the key thus transponding a rolling code to the body modual. if correct code [valid key] engine mobalized. Simple. this system is currently in abuot 10 million veh. If in a bind, my money says that you could wire in an 'antenna' from a ford escort if you had to!

you might be right
but our beloved BMW has a long history of making its part very INcompatible with those of any other manufacturer... whether they should or not

<BR>Mongo know. Mongo make antenna with piece of wire. Need picture of connector.
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Jim Here is your Perfect Business Oportunity, Go into that GeekLab of yours and figure out a way to Bipass, disable, improve whatever it takes that stupid sistem..

I'm sure you can manage, you just need to Do IT....!!!!!!

well, it certainly lives up to it's name!!!

you'll sell plenty to all of us.... i'm sure

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You know I would have if it were possible. The RFID protocol is very secure.

A spare antenna though, is straightforward.


Technical Info:

You know the 'Smart Card' credit cards with the little gold connector on it? Well maybe consider RFID as sort of a 'wireless' Smart Card.

RFID does not send and receive as as much data as a Smart Card of course, but for ID and and a little data uploaded to the transponder, it's perfect.

Package tracking for example. Each time the package passes an antenna, a time stamp can be uploaded to the package tag. At the package destination the time stamps on the package tag can be read. This way the course of the package is known, but a communication networked isn't needed.

In '91 if I remember, I had a Texas Instruments (or maybe HP) "Batteryless Transponder" development kit. That was what they were called. It wasn't an industry standard 'RFID' like it is now, it was brand new. The transponder was embedded into a glass prescription-drug sized capsule. I was pitching an animal tagging program to the Department of Wildlife.

One of the tracking vectors had them placed inside salmon, which would end inside bears.
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<BR>Here's some operational EWS information. It's important.

Many EWS systems, including BMW, have an additional security feature built into the EWS software inside the ECU.

If an incorrect ignition key is inserted into the lock and turned, a lock-out countdown timer starts. The lock-out prevents the correct key from working for some amount of time. The lock-out time is programmable in the ECU software by the factory diagnostic equipment. In some vehicles the lock-out time can be as long as 21 hours.

And a potential kicker, sometimes the countdown clock only runs with the correct key in the ignition, and the ignition turned on.

More often, the lock-out time is only programmed to a couple of minutes. And it usually requires the correct key in the ignition and the ignition turned on.
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