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Old 03-18-2008, 06:03 PM   #1 (permalink)
 
Join Date: Feb 2008
Posts: 28
Default Steering wheel replacement while keeping horn and cruise control

Introduction

This how to is meant to show how to keep your cruise control and your horn after switching the stock steering wheel to a momo steering wheel. These instructions were performed on a 91 VR4 so I can not guarantee you that they will transfer over exactly to any other year, however I would expect that they should be at least the same for all 1st generation VR4's and Stealth RT/TT's.

Disclaimer

As always I hold no responsibility if you in any way hurt your car and/or your self following these instructions.

Wiring Up The Horn


Step 1

Disconnect the battery

Step 2

After you have got the battery disconnected you need to find the connector under the steering wheel that comes off of the clock spring and carries the signals for the horn, cruise control, and radio controls. In order to see this connector you must first remove the lower dash panel above your knees. Please see these instructions on stealth316 and remove the piece that he refers to as the knee protector.


Step 3

You should now be able to look up right behind where the steering wheel comes down and you should see a 4 pin connector that has got the following color wires on each pin.
Pin 1 = Yellow wire (radio control feedback)
Pin 2 = Green wire (horn) - whenever this wire is grounded it will cause the horn to go off.
Pin 3 = Blue wire (12v power used in both the cruise control circuit and the radio control circuit)
Pin 4 = Black and White wire (cruise control feedback)



You can test and make sure that you have got the correct connector by disconnecting it and then reconnecting the battery and trying the horn. If the horn doesn't go off then you have found the right connector. Now disconnect the battery again and you can precede on.



Step 4

Now you need to remove the clock spring (has to be removed anyway to install the momo steering wheel). Then you need to cut the 4-pin connector that you found earlier to control the horn, cruise, and radio controls that was coming down from the clock spring. You will use this plug later. You can either do like I did and get a clock spring from a car that somebody is parting out and use the connector from it, or you can just cut the connector off of your factory clock spring. I just like to keep all of my factory parts in there original condition.




Step 5


Now you need to purchase this switch from radioshack are some other electronics store. This switch will not actually be used as a switch, but the roller on the end will role against the metal ring on the back of the momo steering wheel hub adapter. Now find a piece of wire that is around a foot long and solder it to the part shown in the pictures below.



Step 6

Now you need to solder the end of this new wire coming off of the switch to the green wire coming off of the connector that you cut off from the clock spring earlier.




Step 7

Now you need to mount the switch so that it will make contact with the metal ring on the back of the momo hub adapter. This will take a couple of tries most likely, but below are a couple of pictures of the way that I mounted it which seems to work great. I used a hot glue gun to mount it.
Once you mount the hub adapter and the new steering wheel you should now have a horn.


You are almost there! For more on this project, click here:

Steering wheel replacement while keeping horn and cruise control - 3SI Wiki



awd4life is offline   Reply With Quote
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Old 08-11-2008, 09:07 PM   #2 (permalink)
 
Join Date: Apr 2008
Posts: 5
Default

hmmm.. very interesting. Maybe I will try this on my car. Then If i fail then off to a mechanic. lol...
KarenCaren is offline   Reply With Quote
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