how it work 556u bypass module

Printed From: the12volt.com
Forum Name: Car Security and Convenience
Forum Discription: Car Alarms, Keyless Entries, Remote Starters, Immobilizer Bypasses, Sensors, Door Locks, Window Modules, Heated Mirrors, Heated Seats, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=94903
Printed Date: May 01, 2025 at 4:01 PM

Topic: how it work 556u bypass module

Posted By: lexlude
Subject: how it work 556u bypass module
Date Posted: June 18, 2007 at 4:51 PM

I install the 556u on my es300. I put the ring around the ignition switch. I cut the three wires. I did not put a key in the box. I thought that if I am using the loop around the ignition switch I won't need the extra key. when I remote start the car it don't start but if I put the key near the switch and remote start the car it would start.

Replies:

Posted By: peterubers
Date Posted: June 18, 2007 at 5:10 PM

um, the whole point of the 556u box is to amplify the key's transpnoder signal and transmit it to the key cylinder receiver via the loop ring.

If you don't have a key in the box, then it will not work.

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Posted By: lexlude
Date Posted: June 18, 2007 at 5:56 PM

thank you very much for the fast reply. I bought the 556u because I was told this one does not require the key. when I call directed the rep was very unhelpful because it was not their brand alarm I was using. I ask the rep how does the module recognize the key? do I just have to put the key in the ignition for it to learn? and he replied yes. He should have told me at that moment it have to be in the module itself.

I am going to put my spare in there now and give it a try

thanks

Posted By: lexlude
Date Posted: June 18, 2007 at 6:13 PM

install vallet ket and it work like a charm.

Posted By: peterubers
Date Posted: June 18, 2007 at 6:54 PM

nice work.

You know, if you don't want to leave a key in your car like that, you can obtain a bypass module that truly does NOT require a key -- something to think about for the future.

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The search function is your friend.

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