The horn system is supplied through the
horn relay
R2
, located in the relay unit
B3
.
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 thus supplies the high-tone horn
P10
and low-tone
horn
P11
, which are connected to earth
C10
.