Question about 2007 Toyota Yaris S

1 Answer

Horn fuse keeps popping

I have replaced the bracket of the steering wheel (The point of contact that closes the circuit) And the 3 plastic pushback springs, since I believe that was the original problem, but now the fuse still pops every time and I am at a total loss. My inspection is out of date and now I have a ticket for it, if I can fix it before the date in a week I can nullify the ticket. Any help would be greatly appreciated, thank you.

Posted by on

  • 1 more comment 
  • Adam Hostetler Apr 29, 2013

    Where would I find what the "Relay" is, as that is the second thing to check, I know my fuses are correct, the wiring in the steering column is fine as well.

  • Andres Nazario Apr 29, 2013

    did you disconnect the horn assy? the fuse block/box is located inside the veh under the dash. f the fuse does not blow when you press horn, then you have eliminated the ckt as faulty , which leads to a shorted horn. good luck!!!

  • Adam Hostetler Apr 30, 2013

    I don't know how to d/c the horn assembly :P I'm not even sure what that means haha.. I know my electrician friend did something where he said he disconnected the horn and the fuse still popped, he said he thinks its the horn but he also said he doesn;t really know about vehicles electronics.

×

Ad

1 Answer

  • Level 1:

    An expert who has achieved level 1.

    Corporal:

    An expert that has over 10 points.

    Mayor:

    An expert whose answer got voted for 2 times.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 10 Answers

Turn key off, locate and unplug horn, install known good fuse and or ckt. brkr, push horn button, if fuse does not blow replace horn assy. If fuse blows you have a short on circuit wires. A well trained electrical tecnician should have no problems finding it, plus you'll need schematics. Good luck!!!

Posted on Apr 29, 2013

Ad

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad
MacDre2009
  • 13 Answers

SOURCE: My 99 Toyota Avalon horn does not make any sound.

save yourself the hassle , buy yourself a momentary 12volt switch drill a nice clean hole on your driversside dash and re-wire your horn to it, all the screwing around you'll do to figure out why toyota makes cheesy horn contacts you could have your problem fixed..



on one side of the switch you should run a wire that is a 12volt switched +
on the other side I would run another side run a new power wire to your horn
leave your horns stock ground and just replace the HOTLINE ..

you could even go as far as installing a la cou ca racha horn to bring back that 70's Lowrider feel lol

Posted on Jan 16, 2009

  • 32 Answers

SOURCE: Car fuse problem

Fuse problems are the cause of many strange problems with your car, here are a few fuse problem solutions. If you are suffering from No power to radio, cigarette lighter, here is your solution, another FixYa solution about power problems, that will prove helpful is here. For Remote control or key fob problems this solution should do the trick. For dash light illuminating this solution might give you a clue.

Fuse problems - can be replaced by you quickly, easily, and with little to no dirty hands, & most important of all can save you money. Good luck with your fuse problems, hope this thread helped you, if you find new, or better solutions please post them here.

The car fuse box is usually found in one of two places: usually near the bottom of your dashboard as you move closer to the foot well or, on some models, under the hood. If you are having trouble finding the car fuse box, have a look at your car manual.

Good luck.

Posted on Jun 29, 2008

  • 20 Answers

SOURCE: Toyota 2000 Sienna Hatchback latch broke

YOU HAVE TO TAKE OFF THE DOOR PANEL ON THE INSIDE OF THE HATCH, IF IT WONT OPEN YOU HAVE TO DO IT FROM THE INSIDE, THEN THERE ARE 3 10MM BOLTS YOU TAKE OUT AND THE HANDLE AND PLATE LIGHT BRACKET WILL COME OUT AND YOU CAN REPLACE THE HANDLE... FYI MOST TIMES THE HANDLE BREAKS BECAUSE YOUR ACTUAL LATCH IS RUSTED OR FROZEN SO YOU MAY NEED TO REPLACE BOTH!!

Posted on Nov 27, 2008

Testimonial: "Thanks :)"

  • 1 Answer

SOURCE: 1999 toyota corolla Horn doesn't work.

Usually the wire from the steering wheel is Green w/Red and the wire to the horn from the fuse box is White. There is only one fuse, sometimes shared with the emergency lights. Check to see if there is power to the horn itself with a volt meter.

Posted on Dec 30, 2008

  • 1201 Answers

SOURCE: Would appreciate help for a Toyota Corolla 2007 non-working horn.

If the horn works with direct connection, and fuse, relay, and circuit breaker are all good, it's the switch in the steering wheel. If it is anything like the chrysler auto's, the switch and the air bag module is all one unit, can't replace just the switch, the whole thing, and it's about $700 to $800 for those units, at least it is here, and can only get them at a dealer.

Posted on Mar 24, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

How do I fix the horn on 2006 Impala


System Description
The horn PCB relay is non replaceable ,soldered to the underhood fuse / relay box. . You would have to take the box a part to get at it . Is the air bag light lit on the instrument cluster ? Could have an open wire in the Clock spring , do you know what a clock spring is ? It is inside the upper part of the steering column , It allows the steering wheel to be turned full right to full left keeping the horn an all the buttons an air bag connected electrically. When the horn button is pressed, ground is applied through the horn switch contacts and the horn relay control circuit to the coil side of the relay. The horn relay coil is then energized, causing the relay switch contacts to close applying voltage through the horn control circuit to the horns. For theft deterrent functions, the body control module (BCM) also controls the horn relay by applying ground to the relay control circuit to the relay.
Circuit/System Testing
With a test lamp connected to ground, probe each of the test points on the HORN fuse while activating the horns. The test lamp should illuminate at one or both of the fuse test points.
?‡'
If the test lamp does not illuminate at either test point, refer to the Horn Switch Test.


?‡'
If the test lamp illuminates, refer to the Horn Test.


Ignition OFF, disconnect the inline harness connector C275. Ignition ON, test for B+ between the horn relay control circuit terminal B and ground.
?‡'
If less than B+, test the control circuit for an open/high resistance. If the circuit tests normal, replace the underhood fuse block.

Momentarily connect a 3-A fused jumper wire between the control circuit terminal B and ground. The horns should work.
?‡'
If the horns do not work, replace the underhood fuse block.

If all circuits test normal, test or replace the horn switch

The PCB relay horn system consists of the following components:
?€¢
Horn switch

?€¢
Horn PCB relay

?€¢
Horn assembly

?€¢
Body control module (BCM)

?€¢
HORN fuse 15 A

How cars clock spring works

May 17, 2016 | 2006 Chevrolet Impala

2 Answers

How to check horn. Do I remove the covering on the steering wheel or is it in the engine compartment.


Switch is in the steering wheel. The horn itself is in the engine compartment to one side of the radiator, between the radiator and front grill. Usually on the drivers side.

More likely to be the horn that is faulty as it is in a pretty hostile place with water and salt spray. Test it by putting a wire from the battery to the horn contact. The one to earth will cause a spark, the other one should make it sound.

Dec 16, 2015 | Cars & Trucks

2 Answers

Horn blows when turning steering wheel


Problem solved!

Clockspring was not the culprit. Four insulating plastic washers of particular shape for airbag brackets deteriorated - I should say crumbled. Consequently, airbag sagged and contacted the horn grounding point. It was a difficult problem to diagnose without prior experience. Since dealer doesn't sell the washers separately, I had to either fabricate them or purchase the entire steering assembly for $100. I took the first route. It took me a day.

May 10, 2014 | 1994 GMC Sierra

1 Answer

Saturn Keep blowing horn fuse


Could be a short in the steering wheel or column. Or a faulty horn relay.
You may need a wiring diagram to trace the circuits from the relay.
Usually the black wire is the ground and the green is voltage from the relay.

Dec 18, 2012 | Cars & Trucks

3 Answers

Horn honks by itself


This is a common problem with GM vehicles in that year range. The horn switch (buttons) in the steering wheel pad get stuck closed. The switches are embedded in the air bag assembly and would be difficult to replace. A temporary fix to stop the horn is to remove fuse #3 in the relay center which is located in the bottom of the dash on the passenger side, the plastic cover has to be removed for access. DO NOT only disconnect the wires from the horns as the relay switch that controls the circuit will remain powered constantly and will kill your battery. To restore horn function there are aftermarket horn button kits available at most auto parts stores.

If this info is helpful please give me a favorable rating.

Jan 13, 2011 | 1995 Buick LeSabre

1 Answer

Steering wheel changes


Here is the simple steps to change the old steering wheel and install the new one.

Remove the Original Steering Wheel

1.Read instructions that come with the steering wheel, and gather the following tools: screwdriver, pliers and a puller.
2.Point wheels straight ahead.
3.Disconnect battery or pull horn fuse before removing the old wheel. This prevents the horn from shorting out or blowing during installation.
4.Remove the horn mechanism by doing one or more of the following steps: Press down on the horn cap or ring and turn; remove the emblem cap from its snapped-in position by grabbing it and pulling it toward you or prying it loose; or if the horn ring is secured by screws that are concealed in the rear side of the wheel spokes, use a screwdriver to remove the screws and the ring.
5.Remove horn wire or spring-loaded metal plunger from plastic housing by either pulling straight out on the metal plunger or, on most models, by twisting the plastic sleeve to the left and then pulling out. Cut the wire off the plastic sleeve and keep the sleeve for later use.
6.Remove the shaft-nut retainer clip, if it is present, and keep for later use. Remove the shaft nut, which holds the wheel to the shaft.
7.Mark the shaft at the twelve o'clock position so that you will know where to position the top of the new wheel.
8.Insert a conventional puller into the two tapped holes which appear in the hub of the old wheel and pull off the steering shaft.
9.Remove the original wheel.

Installing the New Steering Wheel

1.Place the small tubular metal sleeve down over the steering shaft.
2.Position hub on splined shaft, making certain that the shaft is properly positioned using the mark you made in step 7. You may have to rotate the plastic horn contact tube slightly to align it with the appropriate hole through the hub.
3.Insert plastic sleeve and spring from step 5 without wire into plastic horn housing. If the plastic sleeve extends above the top bolt surface of the custom hub, cut down the sleeve so that it is 1/8-inch below the top of the hub. Remove sleeve.
4.Insert through the plastic sleeve the wire lead that was supplied in the wheel kit. One end will not pass through the sleeve. This bell-shaped end will go into the horn contact housing. Insert the sleeve and wire into the housing and lock into position.
5.Route wire around the hub from the ten o'clock position to about the two o'clock position to properly align wheel. Position post cover and wheel on hub. Make certain that the wire lead passes through the appropriate holes in the two o'clock position. Using the three shoulder bolts provided, fasten the hub, post cover and wheel together, but do not tighten.
6.Check wheel for proper positioning. If correct, reinstall the shaft nut from step 6 and tighten. Reinstall shaft-nut retainer clip. If the retainer does not fit into the groove on the shaft, tighten the nut until it will fit as originally located.
7.Remove shoulder bolts and reinstall them through the retainer ring with the fiber side toward you. Tighten the shoulder bolts with caution - excess torque will result in damage to the hub. The shaft nut, if correctly tightened, will firmly hold the hub and wheel assembly on the shaft.
8.Connect wire lead to the connector on the retainer ring. Position spring on center nut. Align the dimples of the horn cap with reliefs in fiber material and push into the dimples past the fiber. Turn cap left or right until tight.
9.Reconnect battery or replace fuse.

Sep 09, 2010 | 1991 Honda Accord

2 Answers

My car's horn actives every time I turn the steering wheel. What do you think is causing it to go off?


My 2000 Cirrus had the same problem.

Before I describe how I fixed mine, a warning and disclaimer:
Working on the horn switch, clock spring and steering column requires working safely with the air bag module. An airbag that goes off unintentionally can cause serious or fatal injuries. If you don't know how to handle the air bag safely, do not attempt to fix this yourself!

Symptom: Horn sounds when steering wheel is turned or with slight movement of the air bag module in the center of the steering wheel.

Possible causes:
1. Deteriorated insulators under the air bag mounting bracket screws. (This is what caused the problem in my case.)
2. Warped or bent steering wheel or air bag module.
3. Short circuit in clock spring assembly.
4. Short circuit in steering column due to abraded or pinched wire.
5. Faulty horn relay. (Very unlikely if the horn only sounds when turning the wheel.)

How the "horn switch" works: The term "horn switch" is a bit of a misnomer because there is no identifiable "switch" as one might think. The "switch" is actually a combination of parts: The four air bag bracket mounting screws, four plastic bushings and washers that insulate the air bag mounting brackets from the screws which are fastened to the grounded steering column, four springs under the bushings and the metal back side of the airbag module. The horn wire, which comes from the horn relay up the steering column and through he clock spring, is connected to the left hand mounting bracket which is electrically connected to the back of the airbag module which is electrically connected to the right hand mounting bracket when everything is assembled. When the air bag module is pushed in, the metal back contacts one or more of the four air bag module mounting screws completing the circuit to ground and thus activating the horn relay.

Troubleshooting:
1. Disconnect the negative battery terminal on the strut tower under the hood and pull the two 10 A air bag fuses from the fuse panel on the left side of the dash.

WARNING!: WAIT TWO MINUTES TO ALLOW THE AIR BAG SYSTEM CAPACITOR TO DISCHARGE BEFORE PROCEEDING. NEVER DISCONNECT OR RECONNECT THE AIR BAG MODULE ELECTRICAL CONNECTOR UNLESS THE NEGATIVE BATTERY TERMINAL HAS BEEN DISCONNECTED FOR AT LEAST TWO MINUTES. FAILURE TO HEED THIS WARNING COULD RESULT IN UNEXPECTED DEPLOYMENT OF THE AIR BAG RESULTING IN INJURY OR DEATH.

2. Loosen the two torx head screws on the back of the steering wheel that secure the air bag module to the wheel. The screws are captive in plastic retainers, so don't try to remove them.

3. Remove the air bag module, pull out the connector lock and disconnect the air bag module connector.

4. Place the air bag module on a flat surface connector side down away from where you are working.

5. Locate the four air bag mounting bracket screws. Look for black gritty debris around the screw heads and inside the steering wheel. This is an indication that the top insulating washers have deteriorated allowing the mounting brackets to short out to the screws.

6. Now reconnect the battery negative lead and do the following tests:

a. Move the left hand bracket slightly. If the horn sounds, then the top side insulating washers are either gone or deteriorated. If you want to test the right hand bracket, you will need to connect a jumper wire between the brackets. If one washer is cracked or missing, it is likely they all are.

b. Disconnect the horn wire from the left hand bracket. Start the car and turn the steering wheel to the stop in both directions. If the horn still sounds, then you have either a bad clock spring or a short circuit in the steering column.

The repair if the insulating washers are bad:

The official Chrysler repair manual says to replace the steering wheel (about $260); however, there is a cheaper solution.

1. Remove the four air bag bracket mounting screws, bushings, springs and the two brackets, paying careful attention to how they are assembled so you can re-assemble them later.

2. Clean any debris, dirt and grease from the brackets and undersides of the screw heads.

3. Purchase or fabricate some thin insulating (plastic) washers to replace the ones that deteriorated, which unfortunately you cannot buy from Chrysler. I insulated my brackets and screws with kapton insulating tape plus some very thin plastic washers I cut from some blister pack packaging scrap (probably clear polystyrene). This plastic is very thin, but still is pretty tough. Some hollow punches are handy for punching the holes and making nice round washers, but you could probably do it with small scissors or your wife's scrapbook punches if you are careful.

4. Reassemble the air bag mounting brackets to the steering wheel placing the new insulating washers and/or tape between the screw heads and brackets.

5. Reconnect the horn wire to the left hand bracket and move the bracket around a bit. If the horn doesn't sound, then you likely have fixed the problem. Once again, to test the right hand bracket, you need to jumper the left and right brackets together.

6. Disconnect the negative battery lead and wait at least two minutes before proceeding to ensure the air bag capacitor is discharged.

7. Reconnect the air bag connector to the air bag module and insert connector lock.

8. Reassemble the air bag module to the steering wheel.

9. Reconnect the negative battery lead and test the horn. It should blow only when the air bag module is pushed in. Start the car and turn the wheel to both extremes to test the repair.
If the horn sounds continuously, then the washers you put in are two thick causing the air bag module to rest on the screw heads.

10. Turn the car off and reinsert the two 10 A air bag fuses, then restart the car and make sure the air bag light comes on briefly then goes off.

Hope you find this helpful.

Aug 31, 2010 | 2000 Chrysler Cirrus

1 Answer

Horn won't work on a 1994 buick lesabre and i don't have a fuse diagram


if the horn doesn't work it is most likely the rotating ribbon circuit contract under the steering wheel called the "clock spring contact", the circuit runs along a plastic ribbon and that breaks from all the turing of the steering wheel over the years, then the horn button is no longer connected to the horn circuit.

May 21, 2010 | 1994 Buick LeSabre

1 Answer

My horn is not working and I already replaced fuse. What should I check next?


If it has an airbag than take it to a mechanic, but if not then try popping of the steering wheel cover and inspect the contacts points to complete the circuit for the horn to sound. Also check the wiring to the horn, it coul be loose or the horn could have gone bad.

Feb 01, 2010 | 1996 Pontiac Sunfire

1 Answer

Installation of horn contact and steering wheel on trans am. Car is a 1981


Pull the horn cap off, it should have plastic tabs that lock into a metal cylinder underneath, but will pop off pretty easily. That metal cylinder should be held on by 3 screws. Under those screws is a plastic washer and your contact ring. If you're replacing a steering wheel and need to pull the old one buy, rent or borrow a steering wheel puller. There's nothing worse than having to explain to your buddies how you broke your nose removing a steering wheel. They puller looks like a crows foot. It has three slots on one side and one on the back side. You can use three bolts to attach it to the steering wheel. I wrench will work to screw down the large bolt in the center and the steering wheel will come right off. Put a new steering wheel on, new contacts, and you should be set to go.

Nov 10, 2009 | 1979 Pontiac Firebird

Not finding what you are looking for?
2007 Toyota Yaris S Logo

161 people viewed this question

Ask a Question

Usually answered in minutes!

Top Toyota Experts

yadayada
yadayada

Level 3 Expert

76846 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22246 Answers

Jeffrey Turcotte
Jeffrey Turcotte

Level 3 Expert

8575 Answers

Are you a Toyota Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...