2003 toyota sienna transponder bypass

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=74649
Printed Date: May 04, 2025 at 5:05 AM

Topic: 2003 toyota sienna transponder bypass

Posted By: start25
Subject: 2003 toyota sienna transponder bypass
Date Posted: March 17, 2006 at 4:12 PM

I found a topic in wich somebody described on how to bypass transponder with a relay but its not so detailed. Here it is:

And yes you need the 555U. Actually it would be easier if you would just wrap some thin stranded wire around the key, Put it through a relay (87a and 30) and then 5 or 6 times around the key cylinder. Connect the relay coil to turn on with ground when running on the remote starter. Works every time especially on Siennas and you save a couple of bucks."

Can somebody explain how to do this more detailed, like wich wire goes to 85, 86, 87 connectors?

Thank you....

Replies:

Posted By: 05gt
Date Posted: March 17, 2006 at 4:22 PM

start at pin 30 on the relay, run a bare wire to the spare key wrap around several times continue this bare wire to the ignition cylinder wrap around several times, continue back to pin 87 on the relay, pin 86 goes to a igntion and pin 85 goes to the ground out when running wire from the remote start, or (-)status wire

Posted By: start25
Date Posted: March 17, 2006 at 4:52 PM

Thanks for your help, when you said "pin 86 goes to a igntion" do you mean to ignition wire or just wrap around ignition again?

Posted By: Hornshockey
Date Posted: March 17, 2006 at 5:11 PM

connect it to a switched ignition 12V source

-------------
Life moves pretty fast; if you don't stop and look around once in a while; you could miss it.