Horn works great. Ground short issue as reported above! Coil spring typically not the issue because nothing to wear out. I took mine apart after I didn't set the play and my wife drove off, forcing the steering, snapping the ribbon.
As explained by good people above it's the ground. Here's my additional information that I hope can be helpful.
I had two or three mechanics look at it but I ended fixing it myself at no cost but time. The clock spring is unlikely the culprit as it is housed and there is not much too it to wear out since it's a ribbon (as in computer) at a high cost of $300.
The ground circuit is broken by dirt and grime by now. Unfortunately you have to remove the airbag and steering wheel. 1). Dive the car straight and park to set the steering true straight. 2). remove the Red positive cable from the battery. 3). Loosen throughly the two Torx screws that hold the airbag in place. If you have radio controls, remove that first. Tip: If it doesn't loosen, apply outward pressure to the assembly so the screw will take and unscrew. The airbags has horizontal clips, so, jiggle side to side and lift one side up and it should remove. Unhook the cable. 4). Unhook all cabling and remove the steering wheel. I use a liquid wrench type lube and looened the nut and jiggled the wheel off without a puller. The nut keeps it from hitting you. 5). Remove coil spring. 6). Remove the clamshell housing (couple/few screws). 7). Place newspapers on the floor and under the steering and spray the heck out of the bearings as well as the u-joint towards the floor with carb cleaner, then WD-40. I used an entire can of carb cleaner just to make sure. 8). Put it back together but before screwing in the clock spring, make sure you wind it till it stops then back off 2.5 turns so there is play for wind and unwind as the steering is about 4 turns total. I actually didn't do this (thinking I didn't move it) as I mentioned. So actually, it cost me $300 to replace the clockspring that was perfectly fine. I took it apart and attempted to re solder but the horn kept going off by itself, and there is the danger of the airbag going off too. Not worth it.
My steering wheel was never centered right, so I kept driving around the block without the airbag, and readjusted.
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