DAF LF45, LF55 Series. Manual — part 381
5
LF45/55 series
Electrical system
ELECTRICAL SYSTEM
2-13
2.3 SECTION DIAGRAMS FROM CIRCUIT DIAGRAM 1427090/03
Overview of section diagrams of circuit
diagram 1427090/03
Section diagram no.
Title of section diagram
A
Voltage before and after contact
B
Overview of earthing points
C
CAN overview
1
Main switch
2
Ignition/starter switch/charging circuit
3
MTCO tachograph
4
Immobiliser
5
Pre-glowing
6
DIP-4
7
Direction indicators/warning lamps
8
VIC
9
Marker lights/parking lights/tail lights
10
Reversing lights/buzzer
11
Lighting/dipped beam/main beam/Swedish lighting/fog lamps
12
Stop lights/cab tilting gear
13
Differential lock
14
Interior lighting
15
Mirror heating/windscreen heating/mirror adjustment
16
Search lighting
17
Air conditioning/heater fan
18
Seat heating/accessories connection
19
Horn/cigar lighter/work lamp/air dryer
20
ABS-D
21
ABS/ASR-E
22
ECS-DC3/exhaust brake
23
Cruise control
24
AGC automatic transmission (AT1000/2000)
25
AGC automatic transmission (MD3060)
26
PTO
10
200440
5
ELECTRICAL SYSTEM
Electrical system
LF45/55 series
2-14
Section diagram no.
Title of section diagram
27A
ECAS-3 LF45
27B
ECAS-3 LF55
27C
ECAS-2 LF55
29
Headlamp height adjustment/rotating beams
30
24/12 V 10/15 A converter for radio
31
CDS-3/drop glass operation/roof hatch
33
Windscreen wipe/wash system
34
ACH-W with timer
35
Application connectors, engine speed control, superstructure functions
and spare wiring
36
Break lining wear
37
ALS-S/battery charger, alarm BV2/BV3
38
Sockets, FA/FT
39
Water separator/fuel pre-heating
40
Airbag/seat belt tensioner
41
RAS-EC
10
200440
5
LF45/55 series
Electrical system
ELECTRICAL SYSTEM
2-15
10
200440
A
V
OL
TA
GE
BEFORE
AND
AFTER
C
ONT
ACT
VOL
TA
GE
BEFORE
CONT
ACT
Wire
1000
runs
from
the
batteries
(A500)
to
the
starter
motor
(B010),
connecting
point
30,
and
via
the
main
fuse
(E349,
80
A)
to
dashboard
lead-through
zone
1.
Wire
1000
runs
from
the
glow
plug
relay
fuse
(E286,
125
A)
to
the
glow
plug
relay
(G014).
W
ire
1000
and
the
+
distribution
bolt
in
dashboard
lead-through
zone
1
provide
a
constant
voltage
at
pins
1
and
2
of
connector
705
on
the
P
CB.
This
provides
“voltage
before
contact”
for
the
entire
P
CB.
P
ower
is
also
provided
(by
w
ire
1000)
from
point
30
on
the
starter
motor
to
the
B+1
connection
of
the
alternator
(A513).
W
ire
1000
goes
from
the
+
distribution
bolt
to
the
ignition/starter
switch
(C841).
VOL
TA
GE
AFTER
C
ONT
ACT
When
the
ignition/starter
switch
(C841)
is
set
to
the
“contact”
position
(connection
between
points
1
and
4),
relay
G015
is
energised
via
wire
4001.
This
then
connects
wire
1000
(voltage
before
contact)
to
wire
1010
(voltage
after
contact).
When
the
ignition/starter
switch
(C841)
is
turned
against
the
spring
pressure
(connection
between
points
1
and
2),
relay
G015
remains
activated.
When
the
ignition/starter
key
is
released,
the
contact/starter
switch
automatically
springs
back
and
remains
in
the
“contact”
position.
200440
2-16
5
ELECTRICAL SYSTEM
Electrical system
series
45/55
LF
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