2004 honda odyssey immobilizer

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=98178
Printed Date: May 03, 2024 at 10:36 AM

Topic: 2004 honda odyssey immobilizer

Posted By: daxton
Subject: 2004 honda odyssey immobilizer
Date Posted: October 21, 2007 at 7:56 PM

Just finished hooking up a Viper 5900 in a 2004 Odyssey. Went to start doing the 556HW, and i couldn't find the 7 pin harness to connect into. I was hunting around the steering column, and found two green plugs behind the cylinder. one had i think 3 wires, and the other 4 wires, but they were 2 separate plugs. I then hunted some more, but couldn't find any 7 wire plugs that had colors that matched the manual for the 556HW. (I assume i'm in the right place?)

Thanks in advance!
dax.

Replies:

Posted By: Velocity Motors
Date Posted: October 22, 2007 at 12:13 AM

There are only 4 wires that you need to find. Use the 4 wire harness for the Synchro & data wires.

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Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA

Posted By: daxton
Date Posted: October 22, 2007 at 10:02 PM

Thanks for the info Jeff.. I found that cross referencing with Bypasskits install guide led me to your answer... I'll be giving this a shot tomorrow.. all should be well..

Thanks again

Posted By: daxton
Date Posted: November 04, 2007 at 12:23 AM

I had the column apart tonight cleaning up the wiring of the 5900... Going to tackle the 556H tomorrow... Quick question for those who are familiar with the unit... Do you normally disconnect the batt to connect the 556, or do you unplug the green plug of the immobilizer, or do you do nothing and just make your connections. I know that it's better to be safe, so i'll likely diconnect the batt again to make my connections. Just wonder what you all do.?

Thanks again for everything!

Posted By: Velocity Motors
Date Posted: November 04, 2007 at 9:03 AM

Just make the connection to the Immobilizer wires without disconnecting the battery.

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Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA

Posted By: daxton
Date Posted: November 10, 2007 at 3:08 PM

SUCCESS!!! Thank Jeff and everyone else that supplied so much information. I can't believe how easy the 556 was to program. So.. The wife is out with the Van right now, but here's maybe a silly question. The 556 imitates the key being in the ignition so the remote start will engage. On the EX, the door lock trigger turns on the factory security. I know when you are in the van, and turn on the factory security on, by placing the key in the ignition turns it off.. does this mean that one could forgo the factory alarm disarm relay? Just curious...

Thanks again to everyone on this site who provides so much great info!

daxton.

Posted By: Velocity Motors
Date Posted: November 11, 2007 at 9:18 AM

It depends on what is disarming the OEM alarm system. Is it the key sense ? The ignition ? The accessory ? or is it the fact that the Immobilizer chip is in the ignition column ? or is it all the above ?

You will need to play around with the different options available. I tried this with a 2005 Dodge truck as well and it ended up being the OEM Immobilizer was needed to be activated prior to the remote start engaging to disarm the OEM security because I couldn't find a proper disarm/unlock resistance on the truck.

If pulsing the ignition or accessory is the trick then see if there's a programmable option on the remote start that will do this cause the Compustar systems that we install give you a programmable option to pulse IGN , ACC or both prior to remote start.

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Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA