555H 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=48134
Printed Date: July 22, 2025 at 7:24 AM
Topic: 555H bypass module
Posted By: wgasca
Subject: 555H bypass module
Date Posted: January 19, 2005 at 6:18 PM
can anyone tell me where the engine control module is and what it looks like in a 01 honda accord lx 4 door
Replies:
Posted By: kgerry
Date Posted: January 19, 2005 at 6:45 PM
what does this have to do with the 555H? you dont need to go to the ECM for the Transponder bypass
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Kevin Gerry
Certified Electronics Technician
MECP First Class Installer
Owner/Installer
Classic Car Audio
since 1979
Posted By: wgasca
Date Posted: January 19, 2005 at 7:51 PM
the 555h modules installation paper says that 3 wires get connected there these are the wires
-blue/white KEY SENSE WIRE
-black GROUND
-blue REMOTE START INPUT
-red (+) 12 VOLT CONSTANT
-yellow DATA ECM SIDE
-BLACK / YELLOW DATA KEY SIDE
-BLACK/ white SYNCH WIRE
Posted By: auex
Date Posted: January 19, 2005 at 8:40 PM
That's funny.
Wires are found coming off of the ign cylinder.
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Certified Security Specialist
Always check info with a digital multimeter.
I promise to be good.
Tell Darwin I sent you.
I've been sick lately, sorry I won't be on much.
Posted By: wgasca
Date Posted: January 19, 2005 at 8:47 PM
IM GLAD YOU FIND THIS AMUSING
THANK YOU
Posted By: auex
Date Posted: January 19, 2005 at 8:48 PM
Damn straight I find this amusing.
-------------
Certified Security Specialist
Always check info with a digital multimeter.
I promise to be good.
Tell Darwin I sent you.
I've been sick lately, sorry I won't be on much.
Posted By: wgasca
Date Posted: January 19, 2005 at 8:59 PM
THANKS FOR THE LOCATION OF THE WIRES
Posted By: Jschult3
Date Posted: January 19, 2005 at 9:22 PM
WGASCA, I take it you found you have an immobalizer on the car. You've got the correct module. The wires will be running from the key cylinder down the steering column and into a special module that will be right around the bottom of the steering column. They will most likely be in a seperate wiring harness. They'll be small gauge wire probably 24 AWG or even less. All the wires you need will be right there. What the 555H does is simulate a valid key when the RS sequence is started. W/O it the ECM will shut off the fuel and ignition systems so the car cannot be started. Check this out form some good info on your car as far as factory disarm and re-arm wires and their locations. Check out the link below and also do a search on "Honda transponder bypass" I found several threads that may help you but they're long and have lots of info in various pieces you'll need to read to get feel for what you need. You'll be able to test for the KEY SENSE WIRE, It'll show -12 or +12 when you put the key in the ignition and DON'T turn it on. Obviously the + 12 and ground you can check, the wires you can't probe for are the 2 data wire(send and recv) and the sync. Good Luck https://www.designtech-intl.com/Content/techsupport/wirecolors/VehicleDetail?modelID=623 ------------- Jeff
Always Verify Wire information before Connecting! Just a Darn Good DIY'R
Posted By: wgasca
Date Posted: January 19, 2005 at 9:28 PM
THANK YOU
I APPRECIATE IT
Posted By: profuse007
Date Posted: January 19, 2005 at 10:36 PM
click on my sig, look in tutorial theres an example of intallation on an accord 98-02 w/ 555H
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Houston,TX
"The two most common elements in the universe are H+ and stupidity" (Ellison).
Posted By: Jschult3
Date Posted: January 20, 2005 at 7:19 PM
Profuse007, I rain into some posts on another site. WWW.clubrsx.com , Small world Man, Your site has some good info on it. ------------- Jeff
Always Verify Wire information before Connecting! Just a Darn Good DIY'R
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