Trailer predisposition connection
D73
includes all connections required for the tow hook socket with direction
indicators.
The Check device
M45 produces two signals
which supply the direction indicators: from pin 3 of connector D
for the right ones (F11, F21, F31);
from pin 1 of connector
D for the following ones (
F10, F20, F30).
Pins 5 and 6 of
D73 receive these signals
for the direction indicators.
Pin 2 sends the signal for the warning light,
located inside the instrument panel
E50 pin 11 of connector C.
An inhibition (earth) signal, on the other
hand, is sent via pin 1 to the parking sensors control unit
M84
See
E3090
PARKING SENSOR
,
which disables the operation of this system when a trailer is connected.