Question about Yamaha DT 360 Motorcycles

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I need to see the connection of installing the horn bosch relay

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Posted on Jun 01, 2017


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Posted on Jan 02, 2017

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SOURCE: how do i install a

First you will have to determine if your horn activates by earthing via the horn button or by connecting to positive via the horn button.
Locate the old horn and remove its wires. Connect these wires to the relay on pins 85 and 86. Operate the horn button and the relay should click.
Run a new wire from battery positive to relay pin 30.
Run a new wire from pin 87 to the horn positive.
Run a new wire from horn negative to an earthing point close to the horn or to battery negative and you're done.


Posted on Dec 29, 2010

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My horn isn't working on a Chevy equinox but it's a new horn. What could be wrong with it..and my cruise control don't qork. Is it my steering wheel?

Was Cruise Control working before the New Horn was installed? The power supply to the Horn, (input to ground wire) is connected to the Cruise Control Module (CCM). This CCM is wired to the Relay Switch Box located in the Engine Bay. The Relay Box cover will have a Chart indicating what function each Relay coresponds to. Your local autoparts store (AutoZone) can test the Relay Switch, and you'll know (if any Relay) need to be replaced.

The CCM is also wired to the Steering Wheel, but first passes through the Clock Spring Coil, located just behind the Steering Wheel. The Clock Spring allowes for the Function Buttons on the Steering Wheel to have power while Steering Wheel spins.

The Clock Spring can malfunction or break, its rare, but this will cut power to the Function Buttons on Steering Wheel. If ALL the buttons on Steering Wheel dont work, then the Clock Spring is the Culprit. The Coil may need to be replaced.

The Cruise Control Module itself may have failed and also would cause a few or all Steering Wheel Functions to quit working.

But first check the Relay Switch Box and examine the Harness Cables connecting (Steering Wheel--to--CCM--to--Relay Switch Box--to--Battery Supply).

Also if Cruise Control was working before the new Horn was installed and now not working, then most likely the Problem is a bad wire connection somewhere and/or is a faulty Relay.

(Any Questions/comments

Feb 26, 2017 | Chevrolet Equinox Cars & Trucks

1 Answer

Replacing stock horn with Bosch.

It's always better to use the relay and fuse so the horn wire in the steering wheel won't melt.

Aug 01, 2016 | Cars & Trucks

1 Answer

How do i install wolo horn on jeep with two factory horns?

If you are trying to make it work simultaneously with stock horns, I suggest you wire it in through a relay. Without a relay you will be placing too much of a load on the horn circuit.
A relay is typically used to control a component that draws high amperage. The relay allows full power to the component without needing a switch that can carry the amps. The switch only controls the relay. The relay then provides a direct connection to the battery. It should be noted that either the power(86) or ground(85) in the relay control circuit can be switched. In the case of a horn, the horn button would be used to switch the ground lead(85) and power(86) would be provided directly from the fuse box.
This is a typical wiring diagram for a standard relay installed for headlights, horn, fuel pump, electric fan, etc. If the relay has a 5th terminal, it is not used.


Aug 30, 2014 | Wolo Wolo Manufacturing BADBOY419 Model...

1 Answer

Horn on 2000 toyota camry not working!!!

Your horn circuit is very simple. It consists of the primary circuit, which controls the relay coil and the secondary circuit that applies voltage through the relay contacts to the horns.

The Horn fuse (10 Amp) in the engine compartment fuse block supplies the battery power for both the primary and secondary circuits. This fuse is haot at all times (regardless of the ignition switch position).

Battery power is supplied to Pin 1 of the horn relay. Pin one of the relay connects to both the relay coil and to the secondary main contact.

The ground for the relay coil is provided via the GREEN/BLACK wire through the horn switch. If the relay is clicking when you push the horn button, then the primary side of the horn circuit is working.

When the relay coil is grounded by the horn switch, the relay contacts come together (that's what makes the clicking sound) and supply voltage to the GREEN/WHITE wire that connects to the horn assemblies.

Check for battery voltage at the horn when the horn switch is pressed. If there is no battery voltage present, then the only thing it can possibly be is dammaged contacts in the horn relay or the GREEN/WHITE wire is broken between the relay and the horn.

If there is voltage present at the horn on the GREEN/WHITE wire, the only possibilities are bad horn assemblies or a bad body ground that is not allowing the horns to ground properly. A bad ground condition can be verified by running a jumper wire from the battery NEGATIVE post and connecting it to the mounting bolt at the horn. If this makes the horn work, then you probably need to repair your body grounds near the battery.

Jun 13, 2012 | 2000 Toyota Camry

3 Answers

Horn keep goin off when i hook up battery

unhook the horn, hook it back up when you get the correct info to fix it

Jul 31, 2011 | 1998 Buick LeSabre

1 Answer

I just installed it on a 1990 mazda b2200 and the horn or siren are not making any noise. i double checked that the wires were correct and the horn requires a relay which i connected and installed. can you...

does the relay switch on alarm? check switching on with voltmeter (or 12v lamp). if not, the relay is not driven by alarm - if it does, check relays "power" side with ohmmeter or connect 12v and use lamp. if ok try another horn. if not change relay.
hope it helps
kind regards

Feb 11, 2011 | Crimestopper SP101 Deluxe 1Way Alarm and...

1 Answer

How do i install a new louder horn for my scooter? i have a bosch 30amp relay, a switch and the electronic horn.

First you will have to determine if your horn activates by earthing via the horn button or by connecting to positive via the horn button.
Locate the old horn and remove its wires. Connect these wires to the relay on pins 85 and 86. Operate the horn button and the relay should click.
Run a new wire from battery positive to relay pin 30.
Run a new wire from pin 87 to the horn positive.
Run a new wire from horn negative to an earthing point close to the horn or to battery negative and you're done.


Dec 29, 2010 | Sym Husky 125 Motorcycles

2 Answers

How to wire a 12v 3 point car horn relay?

Here's a few diagrams that might help. This is for a typical Bosch style relay available almost everywhere.11107ff.jpg


Feb 22, 2010 | 1985 Toyota Corolla 2 Door

1 Answer

How do i install a 12 volt air horn to my 2ooo Celica GTS

Finding the room to mount it is the hardest part depending on the type you buy. You will need to test fit it into a few different positions until you find the right spot. Best not to point them into areas they will get wet or too much air pushing into them. They can be mounted in pretty much any direction.

The easier way is if you eliminate your original horn, and hook the 12 Volt power supply from the original horn, to the Air pump that will come with your horns, or that is attached to the horn. If you have to extend the connecting wire, make sure you have a secure connection at both ends

To have both horns, you'll need to install a special switch from the interior to a Heavy Duty 12 Volt relay in the engine compartment that you install, the relay will need to have amperage high enough to match the horns requirements, then connect it through a "Fused" circuit from the battery.

They usually put those instructions on the package.

That's it. You press the horn switch, it energizes the pump & instantly provides an air horn sound.

good luck

Jan 16, 2010 | 2000 Toyota Celica

1 Answer

Horn only works some time === right rear taillight same thing.

Hello Sir

It seem that you are facing some loose connection problems. Do check the following possibilities:

Make sure that all the fuses and relays are properly installed and intact. (Fuse box is located under the hood or underneath the steering wheel room).

Make sure that the positive terminal of the battery is properly installed and didnt have any carbon.

The connections to the horn and tail light are properly connected. (There might be some loose connections).

If all of these techniques does'nt works, you need to change the horn relay or the horn.


Nov 15, 2009 | 1999 Chevrolet S-10 Pickup

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