Question about 1997 Buick LeSabre

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Horn 100 degree weather here this weekend..elderly car sat in sun with windows rolled up from friday to sunday afternoon....then the horn started honking, and honking, and HONKING!! i let the steam out of the car by rolling down the windows and shading steering column. i finally pulled the -cable off the battery for QUIET....checked fuse box...NOTHING marked HORN..any clues, please? would consider removing cover from steering wheel to check contacts, but am concerned with air bag deployment! would also consider disconnecting horn IF I COULD FIND's a weenie horn and if i am THAT ANNOYED THEY CAN HEAR ME SCREAM! SUGGESTIONS???? thanks in advance.

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  • Anonymous Mar 29, 2014

    car horn went off in middle of night. what causes, is it common for critters to get into the area or is it more likely condensation or rainy weather last night?



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Since heat caused the problem, i used cold for the fix.....there are several types of canned "FREEZE" that are used for electronic testing...i sprayed the steering wheel--twice. i think it released the weight of the steering wheel cover on the horn contacts...that or my prayers were answered......whatever the fix----currently AIN'T BROKE.....

Posted on Aug 05, 2008


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How do i fix the horn in my 2010 jeep wrangler sport unlimited? it does not work

the horn button is dead< and the sounds from horn via the antithieft system is dead too? (mine are defeated on fob clicks, by me.,,)

on my car only the driver can honk. horn.

does car run perfect (other shoe drops) Head lights. not dim

cluster battery lamp not showing charge system failure?

first check fuses , the one labeled horn is top choice.

on mine, its fuse m22 and m23

in the underhood.

Totally Integrated Power Module oi TIPM

did you sCAn it after fuse, if the PCM sees errors to the TIPM above

that can in fact make lots of things fail. so Scanning is always #2.

if you see comm errors,. you will not fix this. get it serviced.

or reset every thing and pray.

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(actual horn) but there are many submodels of wrangler and was not stated in your post which one, mines an X.body 2 door.

you can do 2 things, to cars, gue$$ or tests. and danger (air bags)

what do you want to do?

you dont need us to guess. right? our guess is as good as dice roll.

use a voltmeter (walfart $10)

touch the black meter lead to base, of horn (this is called ground)

then the other meter red lead to the horn pin.

honk the horn. if its not 12vdc now, then the problem is up stream.

move the black lead to the car body and keep red same.

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fixed now.

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the horn systems are now complex , no more just 3 parts.

switch, relay and horn. ,

it now is digitally controlled. , that is correct.

the horn switch is a digital. device. ONLY.

Flow of logic:

the horn switch closes.

the 2 wire close and goes to the dash cluster controller. (brain)

this brain sees the switch closes and sends a CAN-buss network

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m22 is right

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open the TIMP box, mine is hinged to front, dumb idea if ever.

the under that lid are all fuses names and relay names.

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so now lets play dealer or ASE shop. just one example.

he sees all horns dead, full time. all ways from sunday.

he checks fuse m22, m23.

when honking, the horns do not get 12vdc to them.

he hot wires one horn (disonnected) it honks loudly.

ok horn is good.

he then checks with his scan tool that the horn switch is in fact working and sees the CAN-buss sends out the command.

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but why does it not honk, ?

he then checks TIPM programming to make sure its not scrambled.

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he pulls battery neg (oops lost nav and radio codes ! read FSM on this)

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how is that.?

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