1999 BMW 740 IL Transponder
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=72415
Printed Date: May 14, 2024 at 7:06 AM
Topic: 1999 BMW 740 IL Transponder
Posted By: Joe Neal
Subject: 1999 BMW 740 IL Transponder
Date Posted: February 08, 2006 at 8:41 AM
I have installed a Remote Start w/ Keyless in to a 1999 BMW 740IL, and the problem I have is the Transponder in the Key is not strong enough for the PASS 4 or 556U will not work. I have moved Ring & Box every way possible.
If key is left in Ignition, it R/S every time.
Any help is appreciated.........
Replies:
Posted By: mjmauto
Date Posted: February 08, 2006 at 9:46 AM
Posted By: mike swanson
Date Posted: February 08, 2006 at 10:20 AM
You need a RS TATA Ring. They work all the time for me.
Posted By: Joe Neal
Date Posted: February 08, 2006 at 10:35 AM
mike swanson wrote:
You need a RS TATA Ring. They work all the time for me.
What is & Where do I find a TATA Ring? The suppliers I purchase from has not heard of a TATA Ring...........
I was told to use aFactory Ring.......... If anyone knows Part Number, please Post
Thanks again
Posted By: Joe Neal
Date Posted: February 08, 2006 at 11:32 AM
Also......Does the Key Sense wire need to be Powered?? If so, what Color wire & is it + or -??
Thanks
Posted By: mike swanson
Date Posted: February 08, 2006 at 11:49 AM
Did you have to put a key in a box then use a ring around the factory ring?
Posted By: mike swanson
Date Posted: February 08, 2006 at 11:52 AM
This is the part we call for: RS-TATA.IV
Key in a box with a ring.
Posted By: Joe Neal
Date Posted: February 08, 2006 at 12:07 PM
mike swanson wrote:
Did you have to put a key in a box then use a ring around the factory ring?
Yes.... the Pass4 & the DEI Unit require a Key and a Ring around the Cylinder.
Car will start every time the Key is in the Ignition all the way. I am wondering if it is the Key Sense????
Any color on the Key Sense wire?
Posted By: mike swanson
Date Posted: February 08, 2006 at 1:32 PM
Get some speaker wire ( a pair ) strip about 2 1/2 feet and twist it together and rap it around the transponder rec. make sure it goes around the rec not a light thing (if you have 1) around the IGN. Then use the plug that came with the BP and put the speaker wire in to the BP. Make sure you rap the Rec bout 5 times or more. Then test it.
If that dont work then get the TATA
Posted By: KarTuneMan
Date Posted: February 08, 2006 at 1:59 PM
https://www.directechs.com/techtips/pdfs/resources/security/directed_techtips/1060.pdf This is the smartest, and most secure, (no intermittant problems) way to do it. -------------
Posted By: Joe Neal
Date Posted: February 08, 2006 at 2:43 PM
I have tried the Omega PASS-4, DEI 556U, and Relay with wrap around Key & Cylinder.....................NO Crank, NO Start
Can put Key in Ignition ( not all the way ), or near ring.........NO Crank, NO Start
Can put Key in Ignition ( All the Way till Warning chime comes on ).....Starts right Up
Does anyone think it is Key Sense??
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