The optional services relay
J60
controls the roof circuit
(as well as the electric rear windows and heated seats:
See E3051 ELECTRIC REAR WINDOWS
and
See E3075 HEATED SEATS
).
The coil of the relay
J60
is energized
when the ignition is switched on (INT/A) by the line for fuse
B10
up
to 2/99 or fuse
F6
of the additional fuse box
B98B
from
2/99, while the supply at the relay contact arrives from the battery, through
the line for maxifuse
J/B2
(of
B5
up to 2/99 or
B99
from
2/99).
This supply passes through the sunroof
B14
up
to 2/99 or
F1
of
B98B
from 2/99., which protects the
circuit, and reaches the sunroof motor
N35
, at pin 1: it
is actually a single unit which includes: the control unit A, the
switch B, the motor itself C and the limit switches D.
The unit is also connected to earth
C20
at
pin 3.
The switch is therefore active when the
ignition is on (INT/A). The control unit controls engine movement
according to switch position.