1973 DATSUN B110 wiring diagram

BODY

REAR
WINDOW
ELECTRIC

DEFROSTER

Option

J
Instrument
harness

Cooler
terminal

J

1
1
c
BW

Ignition
switch
I
lOA
@

hi

u

Heat
wire

glass
switch

T

Fig
BF
62

Wiring
diagram

The
rear
window

electric
defroster

glass
is
furnished
as

an

optional
equipment
It
is
semi

tempered
and
has

electric
heat
wires
baked
to
make
the
rear
window

glass

clear
under
adverse
weather
conditions
The
heat
wire

glass
switch
and

pilot
larnp
are

located
on
the
left
hand

side
of
the
instrument

as
shown
in

Figure
BF
64

Fig
BF
63

Heat

absorbing
rear

glass
Fig
HF
64
Location

of
heat
wire

glass
switch

and

pilot
lamp

3

Fig
BF
65
Front

floor
wiring

BF
33

BODY
ELECTRICAL

WIRING

CONTENTS

WIRING
HARNESS

Engine
compartment
harness

I
nstrument
harness
BE
1

BE
1

BE
2

WIRING

HARNESS

The

wiring
harness
is
classified
into

engine
compart

ment
harness
instrument
harness
and

body
harness
The

individual
harness

Jocating
positions
and

connecting

Position
e
w
the

individual

wiring
harnesses
are

indicated
a
f
Moreover
for
the

body
harness
the

installing
positioJ
differ

mutually
in

Sedan

Coupe

Station

wagon

and
yan

Engine

compartment
harness

Fig
BE
1

Engine
compartment
harness
1
Body
harness

WI
RING
DIAGRAM

INSPECTION
BE
2

BE
4

BE
6

A
0

Ij

7
9

Fig
BE
2

Engine
compartment
harness
2

Fig
BE

3

Engine
compartment
harness
3

BE
1

INSPECTION

Referring
to
the

wiring
diagram
check
the

wiring

harness

for
connection
with
electrical

equipment
and

connector
for
conned
ion
and
installation
When

checking

the

wiring
harness

note
the

following
matters

Connected
unit
should

not
be

loose
rusted
or

contaminated

2

Cable
insulator
cover
should
not
be

damaged
crack

ed
or

insulating
material

should
not
be
deteriorated

3
For
those

parts
which

are

grounded
through
the

installation

bolts
the
bolts
should
be
in
contact
with
the

body
completely
so
that

continuity
is

provided
in

between
the

body
and
bolts

4
Terminals

of
unit

through
which

current
flows

should
not
come

into
contact
with

other
metal

parts

5
No

erroneous
connection
should
be

present

DESCRIPTION

When
an
overcunent

exceeding
the
rated

amperage

flows
to
a
circuit
the

fuse
is
heated
and
melted
the

circuit
is

interrupted
and

thus
cables
and

electrical

equipment
are

protected
from

damaging
due
to

burning
or

damaging
is

limited
to
the

minimum
This
vehicle

is

equipped
with
six

fuses
and

one
fusible
link
The
fuses

are

located

in
the

fuse
box
and
used

to

protect
illumination

signal
and
other

systems
and
the
fusible
link
is

adopted

in
the
cable
between
the

battery
and
alternator
to

protect

the

charging
and

starting
circuits

FiJ
BE
16
Fuse
box
BODY

6
Cables
should
be

damped
so
that

they
do
not
come

into
contact
with

sharp
corner
or

part
lernperature
of

which

rises

highly

7
Cables
should
be

securely
clamped
in

posItions

sufficiently
separated
from

rotating
parts
such
as
fan

pulley
fan
belt

etc

8
Cables
should
be

provided
with
an

optimum
extra

length
at
sections

stationarity
on
the

body
or
at
sections

where
vibration

occurs
due
to

engine
operation
and

others

Note
a
When

inspecting
or

performing
other
mainte

nance

service
and
no

power
supply
is

required

particularly
or
when
it
is

anticipated
that
a

part

may
be
short
circuited
disconnect
the

battery
H

terminal

b
In
no
event
should
an
unloaded
circuit
be

directly
connected
with
ground
Be
sure
to
use
a

test

lamp
or
circuit

tester

fUSE

Fig
BE
17
Fusible
link

INSPECTION

In
the

most

cases
fuse
can
be

checked

visually

However
when

it
is
difficult
to

check

visually
a
circuit

tester

may
be
used

The
fusible
link
can

be

inspected

visually
or

by

feeling
on

finger

tip
However
the
fusible

link
can
be

inspected
more

correctly

by
using
a
circuit

tester

BE

6