Workshop Manuals Factory service & repair Alfa Romeo
01 General data and specifications02 Engine (Twin Spark, JTD and V6)03 Clutch04 Gearbox (manual, Selespeed and Q-System)05 Front axle06 Brakes, ABS and traction control07 Steering08 Suspension and wheels09 Heating, air conditioning and washers10 Electrical equipment11 Body12 Body panels and reinforcement13 Wiring diagrams14 Connectors and pin-outs15 Wiring harnesses16 Fault diagnosis17 Special tools
Alfa Romeo 156 Factory Service Manual (1997-2002)13 · Wiring diagrams
13 · Electrical

E3010 Horns

Make
Alfa Romeo
Model
156 Factory Service Manual
Year
1997–2002
Section
Electrical activation devices › E3010 Horns
Wiring diagramsE3010 Horns

E3010 Horns

Description

The car is fitted with a horn system which consists of two horns with different tones: a high tone and a low tone horn. Both horns are activated simultaneously.

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

The horn circuit is protected by a special fuse and controlled by a specific relay located in the junction box.

For safety reasons, the horns can be operated at any time, even when the key is turned to OFF (or removed).

Description of operation

The horn system is supplied through the horn relay R2, located in the junction unit B1 from the direct line through the fuse F13 - always for B1 - and the maxifuse J/B1 of B5 up to 2/99 or B99 from 2/99.

The coil of the relay R2 is energized by an earth signal when one of the steering switches is closed; these switches are connected via the clock spring to the stalk unit H5. The relay thereby supplies the high tone horn P10 and the low tone horn P11.

Wiring diagram

Wiring diagram E3010 HORNS

Components

CodeComponentSee
B01Junction unit description 5505A
B05MAXI FUSE-1 box
B15Power point fuse
B99Maxifuse box on battery
C10Front left earth description 5505A
H05Steering column switch unit description 5550A
P10High-tone horn description 5550B
P11Low-tone horn description 5550B

Component location

Location of components, E3010

Parts & tools for this job Staging For 1997 Alfa Romeo 156

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