Problems with Cruise Control & Aftermarket Steering Wheel

[scorp965]

This is how I have setup my car:

I am using a momo hub, momo wheel, and a push button (off-on-off) mounted to the steering column trim. The horn functions perfectly, the SRS is disabled, but I cannot get cruise control to function - the cruise control worked perfectly prior to the aftermarket steering wheel installation, and I have been using the system with no cruise control for a number of months... lately I have had the urge to get cruise control working again, leaving me in this dilema.

The horn beeps by taking wire #1 from the SRS harness, contacting the rear of the momo hub, and hitting ground with that wire via the center of the steering column - it's my understanding cruise control works by first enabling the stalk button, then taking wire #2 (cruise control set) and connecting it with wire #1. I have a lead attached to position #2 on the SRS harness, going into half of my push button - the other half of the push button is spliced into the horn wire from the SRS harness. I press the button, wire #2 contacts wire #1, and nothing happens. I have verified the button and all of my contacts with a voltmeter, but when I get on the freeway, get up to approx 60mph, and push the button cruise control does not enable.

If the connections are good, and the components are good, I must have it configured incorrectly?

I have also tried this setup w/o success:

 

[KooLaid]

I saw a nice simple setup, where the guy just put the oem cruise buttons removed from the oem steering wheel where the ashtray is.

 

[DutchBlackNsx]

The electrical design for the horn and cruise switches seems a bit funny.
Seems they used an alternate way of getting a 12V potential to the cruise switches. Looking at this setup i wonder when you keep the horn buttons pressed, you can actualy use the cruisecontrol functions.
They probably did this to minimize the amount of wires in the cablereels in the steering column, as these are known to be very fragile, and sometimes can be very expensive to.

Since you have 2 switches, you have to make sure you are having the right wire for the set function.

Please see page 23-294 of the workshopmanual for the wiringdiagram.

Also, please note you need to use a normally open contact, not a 'switch'.

Your wiring diagram in pic1 is the correct one i suppose, just need to verify the connections on your cablereel, that you have the right wire, or, just try the other one.

Just a small reminder (like you dont know ), dont forget to enable the cruise.





[post edited coz i posted same diagram as allready shown]

 

[Stephen@NCAutoUSA]

This is how I have setup my car:

I am using a momo hub, momo wheel, and a push button (off-on-off) mounted to the steering column trim. The horn functions perfectly, the SRS is disabled, but I cannot get cruise control to function - the cruise control worked perfectly prior to the aftermarket steering wheel installation, and I have been using the system with no cruise control for a number of months... lately I have had the urge to get cruise control working again, leaving me in this dilema.

The horn beeps by taking wire #1 from the SRS harness, contacting the rear of the momo hub, and hitting ground with that wire via the center of the steering column - it's my understanding cruise control works by first enabling the stalk button, then taking wire #2 (cruise control set) and connecting it with wire #1. I have a lead attached to position #2 on the SRS harness, going into half of my push button - the other half of the push button is spliced into the horn wire from the SRS harness. I press the button, wire #2 contacts wire #1, and nothing happens. I have verified the button and all of my contacts with a voltmeter, but when I get on the freeway, get up to approx 60mph, and push the button cruise control does not enable.

If the connections are good, and the components are good, I must have it configured incorrectly?

I have also tried this setup w/o success:

Scorp. This isn't going to answer your question at all, but if you would answer, it'd help me out, haha. In diagram #1 on the top right side coming away from the horn there's a cable. Is that cable supposed to be grounded to some kind of metal? I ask this because I have a sparco wheel with the same setup and nrg hub and such, and I haven't hooked my horn up, or have failed to rather.

Stephen

 

[FastraxTurbo]

Scorp,
The cruise control switches a 12 volt signal to activate. It gets it through the horn circuit opposite the horn itself. Because of the open circuit, 12 volts passes through the horn on the ground side until the switch (horn button) is closed. You can wire the switches picking up the 12 volts from the horn circuit, or any other ignition 12 volt source.