Print electrical function








AVVISATORI ACUSTICI




145 - MiTo


HORNS - DESCRIPTION

The vehicle is equipped with a horn system consisting of a two-tone horn.

The horns are operated by pressing the sides of the steering wheel cover (around the Air Bag).

The horn circuit is protected by a dedicated fuse and controlled by a relay located in the engine compartment junction unit.

For safety reasons, the horns can be operated at any time even with the key OFF or extracted.


HORNS - FUNCTIONAL DESCRIPTION

The system for the horns receives a power supply via the horn relay T03 of the engine compartment junction unit B001 from the line directly from the battery via fuse F10 in junction unit B001.

The coil for the relay is energized with an earth signal when one of the switches on the steering wheel is closed, connected to the wiring via the clock spring D047.

The clock spring D047 sends a control signal for the horns to pin 41 of connector B of B001 which energizes relay T03 of B001 which, in turn, supplies the horn P005.


HORNS - WIRING DIAGRAM

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The original SVG asset is absent from this archive. The captured text and component links below remain available.

Component code

Description

Reference to the operation

A001   

BATTERY

  Op. 5530B10 BATTERY - R+R 

B001   

JUNCTION UNIT

  Op. 5505A28 CONTAINER FOR ADDITIONAL JUNCTION UNIT IN ENGINE COMPARTMENT - R.R. 

C010   

LEFT FRONT EARTH

-

C015   

DASHBOARD EARTH, DRIVER'S SIDE

-

D047   

CLOCK SPRING COUPLING

  Op. 5580C12 CLOCK SPRING FOR AIR BAG MODULE ON STEERING WHEEL - R.R 

H001   

IGNITION SWITCH

  Op. 5520A18 IGNITION SWITCH CONTACT CARRIER LOCK BARREL - R.R. 

P005   

SINGLE TONE HORN

  Op. 5550B30 L/H OR R/H HORN (ONE) - R+R 


HORNS - COMPONENT LOCATION

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The original SVG asset is absent from this archive. The captured text and component links below remain available.

Component code

Description

Reference to the operation

A001   

BATTERY

  Op. 5530B10 BATTERY - R+R 

B001   

JUNCTION UNIT

  Op. 5505A28 CONTAINER FOR ADDITIONAL JUNCTION UNIT IN ENGINE COMPARTMENT - R.R. 

C010   

LEFT FRONT EARTH

-

C015   

DASHBOARD EARTH, DRIVER'S SIDE

-

D047   

CLOCK SPRING COUPLING

  Op. 5580C12 CLOCK SPRING FOR AIR BAG MODULE ON STEERING WHEEL - R.R 

H001   

IGNITION SWITCH

  Op. 5520A18 IGNITION SWITCH CONTACT CARRIER LOCK BARREL - R.R. 

P005   

SINGLE TONE HORN

  Op. 5550B30 L/H OR R/H HORN (ONE) - R+R