how do you know if you need rs bypass?

Can you give me one specific example of when you have seen this happen? I have never seen any vehicle that uses a transponder based anti-theft system "store the code of the original key for a bit"...it would completely defeat the purpose of a passive anti-theft system.

___________________________________________ i dont recall the expesific car but if you have some time installing you should get across of a car that does that.  ...

This method works fine if it's your own vehicle. If you are a shop and need to quote a price, this method simple would not be practical.

 if i dont understand this wrong the person who make the question does not work on a shop otherwise will have access to idatalink, staubtech, directech. etc etc etc. and wont need the advise of a forum to make a quote for a car starter....

simplyfalling wrote: If the vehicle is at the shop you can always wrap the key head in aluminum foil and attempt to start the vehicle.  $1.50 and you can test all winter long if you really needed to.  Doesnt work on some gm vehicles, and I can not verify that it would work on any of the proximity key style vehicles, but typically once you see that key you know you need an interface module.

I can verify that it will work at least on Nissan/Infiniti with the Intellikey (Nissan's name for their proximity key). I demonstrated this with the cooperation of the sales manager at my local Nissan dealer a year or two ago. Then again, are there any proximity key equipped cars that DON'T require a bypass? (Not being a smart-***, I remember a while back reading some technical literature about Suzukis with a proximity key system that seemingly only enabled keyless entry and steering column unlock, as opposed to cranking/ignition/fuel delivery.)C Renner's Auto Electronix

My service is cheap, quick, and good - pick any two