Model Specific Questions and Info > MK2 Golf/Jetta and Audi 5k

92 EcoDiesel horn dead spot w wheel straight ahead

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92EcoDiesel Jetta:
Hey everybody, I haven't visited this forum for a long time! mainly because I have had zero issues with my dependable daily driver 92 EcoDiesel, until a month or 2 ago.


I have a dead spot in the horn in the center position of the steering wheel. I use the horn circuit to supply power to a charger to charge my phone which is mounted on the steering wheel's flat spot.  The power goes on and off intermittently while I am driving because of this dead spot, which cause the phone to beep as the power comes and goes- very annoying and the phone does not get fully charged.


Per the Bently, the horn button receives voltage through terminal 71 of the turn signal switch. There must be a slip ring in the steering wheel somewhere but the Bently do not mention it.  I have not tore into it yet and don't want to break anything. That's why I am asking for help. Has anyone had a similar problem? What do I need to disassemble to get to the source of the intermittent horn circuit?

ORCoaster:
92ECO,  First of all ditch the circuit to charge the phone that way.  Just wire up a second plug off the cigarette lighter and use a standard plug to USB cord.  Much more dependable, on all the time, and not prone to cutting out.  And it is on a fuse that is of greater amperage.


As for the horn circuit:  You have to pull the horn cover off the steering wheel and using a 24 or 27 MM deep socket and a large breaker bar you remove the nut holding the steering wheel on.  Mark it for alignment with a permanent pen or scribe so you get it back on in the same place. 

Once you get the steering wheel off you will see how there is a ring on the bottom of it and it most likely is dirty and the little finger of a tab that connects to that ring might be bent or corroded as well.  Just clean them both up real good. Put some lube on them and bend the finger up so it always is applying contact to the horn ring.  Pretty simple thing to do if you have those metric deep sockets.  You can always hit the local autopart store up for their loaners too.  No need to buy a set. 

Hope that gets you a fully working horn and a better charging setup.


Honestly, a take off from the horn circuit?   Now that is a first.

TylerDurden:
I assume it's still going through the relay coil... It doesn't seem to  draw enough to close the relay and honk the horn, so whatever.

As stated, the cover pops off and the big nut loosens the wheel. There is usually a terminal to unplug. 

Personally, I'd put the phone on the dash,  but it's your ride.

ORCoaster:
Maximum Distraction to driving with it in the wheel. 

srgtlord:
Not sure if you guys can see this picture but I wired up a separate horn button when my stock horn failed. Definitely separate the horn and the phone charger circuits.

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