Installation instructions for all models with electronic solenoid switch
Mounting
Use the supplied hardware to firmly attach the horns to the body of the vehicle. Larger horn
models are heavy and will need to be attached to a structurally sound vehicle component.
Whenever possible, angle your horns slightly downward to prevent water from accumulating
inside the trumpets.
Wiring
The Kleinn electronic solenoid switch can be operated either by your vehicle’s existing horn
switch, or with an independent pushbutton switch (not included).
To wire to your existing switch:
- First determine the polarity of your horn switch. In most vehicles, the horn switch sends a
negative signal. To confirm, connect one probe from an ohm meter to the horn wire in the
vehicle and the other to ground. Your meter should read zero ohms. This would indicate a
negative horn circuit. If your meter does not read zero ohms, test for voltage between the
horn wire and ground. +12 volts would indicate a positive horn circuit. NEVER use a test
light when probing in the steering column. Accidentally probing the air bag wire could
deploy the air bags!
- Once you have determined the polarity of your horn circuit, connect one wire from the
solenoid (it does not matter which one, but if your systems has two solenoids and they each
have a plain wire and striped wire, put the similar wires together) to the horn wire.
- If your horn circuit is a negative circuit, connect the remaining wire from the solenoid to a constant 12 volt source.
- If your horn circuit is positive, connect the remaining wire to ground.
To wire to a new switch:
You can use any momentary pushbutton or rocker switch to activate your solenoid.
- Connect one wire from the solenoid to a +12 volt power source. It is recommended you use a 3-amp fuse in-between the solenoid and the power source.
- Connect the remaining solenoid wire to one side of the switch.
- Connect the other side of the switch to ground.
You have now made all the electronic connections required to operate your air horn. Connect your air supply to the input fitting on the solenoid and be heard!
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