Horn and Cruise control not working - Diesel Forum

mikep_1998 · 07-01-2006, 12:53 AM

Hi,

I have a 1995 Ford E350. The horn and cruise control stoppped working. [img]/ubbthreads/images/graemlins/shrug.gif[/img] I believe it was around the same time. But not possitive. I have checked all of the fuses in the interior fuse box.

I pulled the stearing wheel cover off to look at the switches and wires. It appears that only 3 wires are used for all the switches (5 cruise control and 1 horn). How does this work? I have a Chilton's book but it doesn't cover the horn or cruise control. So I could use some schmatics of the electrical system for horn and cruise. mikep_1998@hotmail.com

bork · 07-01-2006, 08:24 AM

I dont know much except what I'v read around here. If you have an air bag be carefull!!! Darthsurplus just went thru alot to findout why cruise control quit. He finally got it scanned & said it was the best sollution instead of wasting time with trying parts.Sounds like a clock spring problem though, even though I have NO experiance.Did I say be carefull of air bag ? you test-light wrong connector & ????? [img]/ubbthreads/images/graemlins/shocked.gif[/img]

ddog · 07-01-2006, 08:28 AM

If the horn and cruise control stopped working odds are better than not it is the clockspring.The clockspring is located behind the steering wheel.You don't have to pull the wheel to check it but you do to change it. I will copy in a link to another thread with more explanation how it works.

Darths Cruise Control Thread

DarthSurplus · 07-01-2006, 08:52 AM

[ QUOTE ]
The horn and cruise control stoppped working.

[/ QUOTE ]
If your airbag light has also changed its behavior, you have a perfect trifecta pointing towards your clockspring. Even if I had a perfect clockspring trifecta, I would STILL SCAN FOR CODES AND PERFORM A SWITCH SELF-TEST FIRST

[ QUOTE ]
It appears that only 3 wires are used for all the switches (5 cruise control and 1 horn). How does this work?

[/ QUOTE ]
There is one wire that sends all of the cruise and horn button inputs to a controller. Each of those six buttons causes this control wire to be at a different voltage. The controller responds based on the voltage it reads.

Don't change parts. Persevere and find a code scanner capable of initiating the on-board diagnostics FIRST !! !! !! !! !!

Explanation of the 9 factors capable of disabling cruise control. 8 in your case, since you don't have a clutch. Aren't you lucky? [img]/ubbthreads/images/graemlins/wink.gif[/img]

Control wire voltage listing

Long, sordid tale of cruise control woe.

Another victim.

Good luck! [img]/ubbthreads/images/graemlins/smokin.gif[/img]

And Welcome to the Dieselstop!!!! [img]/ubbthreads/images/graemlins/laugh.gif[/img] [img]/ubbthreads/images/graemlins/laugh.gif[/img] [img]/ubbthreads/images/graemlins/laugh.gif[/img]

(it will be easier for you to find stuff if you go to your page, and edit your preferences to show 100 threads per forum page.)

bork · 07-01-2006, 08:52 AM

ddog your TOP DOG ! I was looking at some "larrys secrets" & saw you posted some helpful links.

mikep_1998 · 07-01-2006, 04:23 PM

Thanks guys, I found it the clock spring was bad.

This board rocks!!

Mike

DarthSurplus · 07-01-2006, 08:57 PM

Thanks for jumping in there with this stuff, guys. [img]/ubbthreads/images/graemlins/grin.gif[/img] I was working on it, but was called away in the midst of all that typing.

ddog · 07-02-2006, 10:30 AM

[ QUOTE ]
There is one wire that sends all of the cruise and horn button inputs to a controller. Each of those six buttons causes this control wire to be at a different voltage. The controller responds based on the voltage it reads.

[/ QUOTE ]

Interesting, This I didn't know. Is the controller you mention above the infamous and frequently cursed GEM module I have read about or is it unique to just those functions in the wheel?

Alaskapsdvan · 07-02-2006, 02:10 PM

Where is the horn relay?
I am working on putting a set of electric horns on the van and am trying to find the relay for the horns......

DarthSurplus · 07-02-2006, 09:47 PM

Depending on year and model, it can be the GEM or it can be the PCM. On mine, it's the PCM. I think. [img]/ubbthreads/images/graemlins/smirk.gif[/img]

There's an interesting experiment to perform the next time I pull my PCM. See if the horn will honk with the PCM out of the truck. [img]/ubbthreads/images/graemlins/tongue.gif[/img]

ddog · 07-05-2006, 09:49 PM

I don't know where it is, But you could unplug the stock horns then hit the horn and listen for the relay clicking and track the location that way. Quicker with a helper.

Mik · 07-09-2006, 08:52 AM

not sure about the 95s, but the relay for my 91 is on the passenger side of the steering column, between the column and the engine cover

it is just below the dash

[image]http://photos.thedieselstop.com/data/500/9582horn_relay-med.JPG[/image]

sorry guys, tried to put a link to a photo in my gallery, but i can't seem to get it figured out

in photos you can search under "horn relay"

Alaskapsdvan · 07-09-2006, 12:28 PM

I just cut the horns into the stock and other horns that I have on the van........... now there are 3 sets.......... of horns.......

van_350sd · 12-05-2012, 04:24 PM

Old Thread,

My Horn Stopped working, I have not check the cruise yet,
I was thinking the Relay under the hood?

I will check my cruise control later, if it's working I can rule-out
the clock-spring?

Thanks,

Alaskapsdvan · 12-06-2012, 02:29 AM

I would be looking at the fuze under the hood.. it is a very small one.
Because of my horn set up , there are times that I lose the horn and yes the curse control.