How do i know if its the steering wheel as oppose to the horn it self? My horn doesnt work, but i dont have the buttons for it on my steering wheel, should i replace the steering wheel? or the horn

Was Cruise Control working before the New Horn was installed? The power supply to the Horn, (input to ground wire) is connected to the Cruise Control Module (CCM). This CCM is wired to the Relay Switch Box located in the Engine Bay. The Relay Box cover will have a Chart indicating what function each Relay coresponds to. Your local autoparts store (AutoZone) can test the Relay Switch, and you'll know (if any Relay) need to be replaced.

The CCM is also wired to the Steering Wheel, but first passes through the Clock Spring Coil, located just behind the Steering Wheel. The Clock Spring allowes for the Function Buttons on the Steering Wheel to have power while Steering Wheel spins.

The Clock Spring can malfunction or break, its rare, but this will cut power to the Function Buttons on Steering Wheel. If ALL the buttons on Steering Wheel dont work, then the Clock Spring is the Culprit. The Coil may need to be replaced.

The Cruise Control Module itself may have failed and also would cause a few or all Steering Wheel Functions to quit working.

But first check the Relay Switch Box and examine the Harness Cables connecting (Steering Wheel--to--CCM--to--Relay Switch Box--to--Battery Supply).

Also if Cruise Control was working before the new Horn was installed and now not working, then most likely the Problem is a bad wire connection somewhere and/or is a faulty Relay.

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More then likely the coiled ribbon electrical contact under the steering wheel is defective, it is called the "clockspring" contact.

You have all the informations to find your problem. jump a wire on connector X4 G1 tan wire to ground and check X1 E5 with a test light or multimeter to see if there is a output, you should have 12 volts. If you dont have any voltage the horn relay is defective. I check in the shop manual and the relay come with the underhood fuse block.

If the fuse is OK, check if you have power at the horn, if yes, replace the horn, if not check the switch or wire. make sure you have a good ground too.

check fuses check to see if the other buttons on the steering wheel work if there are any (not the ones on the steering column if there are any buttons on the steering wheel try them) if all fuses are good and nothing on the steering wheel works there is a plastic disc between the steering wheel and the steering column this makes the electronic connection the part may run between 50-200 dollars depending on the car its a pain if you dont know how to replace it so you need a mechanic thats going to dig in your pocket sometimes its better to just go without a horn and just use your finger good luck

THE WHOLE HORN PAD AND AIRBAG IN STEERING WHEEL HAS TO BE REPLACED.BECAUSE HORN PAD BUILT IN THE AIRBAG.IF YOU GOING TO REPLACE AIRBAG IN STEERING WHEEL YOUR SELF. DISARM AIRBAGS BY FIRST TURNING OFF RADIO,THEN REMOVE NEGATIVE BATTERY CABLE,WAIT 20 MINUTES FOR AIRBAGS DISCHARGE.BEFORE REMOVING THE AIRBAG HORN PAD.

take a test light and hocke it up in wire for horn under car ground test light.have someone push horn if it does not light work your way back fuse horn button etc it allso a horn realy

The horn switch is probbably faulty in the steering wheel, or may be the horn wire has gone to earth.

You see there is ign live straigh to the horn then on the outher side the wire goes to the horn push where the switch puts it to earth (fools alot of people)

so eater switch 0r shortted wire..........

or perhaps some one has fitted a self earthing horn! you know the type with just the one contact as opposed to the two mmjust a thought!
O.K.?

Todd, If your Air Bag Light is on and your cruise control does not work. Contact me before doing the test procedure below!

Todd, sense you have the steering wheel cover off, we need to check to see if it will honk when you take the ground wire for the horn and ground it anywhere to a good ground, preferably the ground post from the battery. We know this is always a perfect ground! The wire for the horn will be a single wire all by itself. If it doesn't Honk see below.

Next: Next we want to ground the horn wire coming out of the other side of the steering wheel, this is much harder but will tell us what we need to know.

Let me know what you find!

its probably not the horn itself but it might be the horn button on the steering wheel, it probably the clock spring messing up , if it is than be very careful with the airbag when you pull the steering wheel off , just disconnect the battery and wait 5 to 10 minutes before disassembling the steering wheel