Amazon: - Horn Problems

Kirk Frazee · Mar 16th, 2008, 16:09

How do I diagnose and repair horns on a 1968 122S Wagon with "bow tie" steering wheel (the same as used on the 140 series)?

Thanks,

K

Ron Kwas · Mar 16th, 2008, 16:29

Kirk;

Is your vehicle equipped with a relay or not...that's the first thing you must answer, and it will determine how you proceed with troubleshooting ...if no relay is present, horns have (IGN) power and contact in St wheel makes circuit to chassis (-). if equipped with a relay, st wheel only completes circuit for relay (so you should hear it clack when activating st wheel switch with IGN ON ...IF every thing on input side of relay is OK).

See also (this article is slanted toward earlier non relay systems with older st wheels, but gives some usable info for both layouts because I do recommend upgrading to a relay setup where current being controlled by contacts in st wheel is minimum relay current and NOT full horn load current): http://www.sw-em.com/hornupgrade.htm

Good Hunting

BillKat · Mar 17th, 2008, 16:12

Do you have the wire running through the steering column? Check it's not broke, mine was.

Mar 16th, 2008, 16:09	#1
Kirk Frazee New Member Last Online: Feb 16th, 2009 01:12 Join Date: Mar 2008 Location: Chelmsford	Horn Problems How do I diagnose and repair horns on a 1968 122S Wagon with "bow tie" steering wheel (the same as used on the 140 series)? Thanks, K

Mar 16th, 2008, 16:29	#2
Ron Kwas Premier Member Last Online: Today 06:45 Join Date: Jul 2007 Location: Connecticut, USA	Kirk; Is your vehicle equipped with a relay or not...that's the first thing you must answer, and it will determine how you proceed with troubleshooting ...if no relay is present, horns have (IGN) power and contact in St wheel makes circuit to chassis (-). if equipped with a relay, st wheel only completes circuit for relay (so you should hear it clack when activating st wheel switch with IGN ON ...IF every thing on input side of relay is OK). See also (this article is slanted toward earlier non relay systems with older st wheels, but gives some usable info for both layouts because I do recommend upgrading to a relay setup where current being controlled by contacts in st wheel is minimum relay current and NOT full horn load current): http://www.sw-em.com/hornupgrade.htm Good Hunting

Mar 17th, 2008, 16:12	#3
BillKat Senior Member Last Online: Aug 16th, 2023 21:45 Join Date: Dec 2003 Location: Cambs	Do you have the wire running through the steering column? Check it's not broke, mine was.

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