5
Electrical installation
ELECTRICAL INSTALLATION
2-31
A
VOLTAGE IN FRONT OF AND BEHIND CONTACT
VOLTAGE IN FRONT OF CONTACT
A constant voltage is applied to both the
Pertinax block and connector 233 pin 2 through
wire 1000 and connector 114 (pins A and B).
This wire is NOT fuse-protected. It can only be
made dead by disconnecting the battery leads
or by disconnecting connector 114.
VOLTAGE BEHIND CONTACT
A voltage is applied to the Pertinax connection
block through the starting motor (point 30) and
the alternator (B+). This connection point can be
connected to wire 1010 through contact relay
G0105.
This wire is NOT fuse-protected.
OPERATION
If the contact/starter switch (C539) is switched
to the “accessories” position (connection
between points 1 and 6), voltage is applied
through wire 1130 to relay G178.
If the contact/starter switch (C539) is switched
to the “contact” position (connection between
points 1 and 4), the relay is activated through
wire 4001.
This relay then connects wire 1000 (voltage in
front of contact) to wire 1010 (voltage behind
contact).
If the contact/starter switch (C539) is turned
further against the spring pressure (connection
between points 1 and 2), relay G015 remains
activated and the starting-motor relay (B010) is
also activated. The starting motor will now start
operating.
If the starter key is released, the contact switch
will automatically return and remain in the
“contact” position. The starting motor (B010) is
no longer activated.
VARIANTS
Location
6
Wire 4009 only applies in the case of a VF
engine.
10
ǹ 9711