1973 DATSUN B110 wiring

through
all
drive

positions
and

place

the
lever
in

park
P

position
In
this

inspection
the
car
must
be

placed
on
a

level
surface

The
amount
of
the
oil

varies
with

the

temperature
As
a
rule
the
oil

level

must
be

measured
after
its

tempera

ture
becomes

sufficiently
high

I
Fill
the
oil

to
the
line
H

The

difference
of

capacities
between
both

H

and
L

is

approximately
0
4

liter
7
8

U
S

pt
3
4

Imper

pt
and

therefore
take

care
not
to
fill

beyond

the

line
H

2
At
the
time
of
the

above

topping
up
and

changing
of
oil
care

should
be
taken
of
to

prevent
mixing

the
oil
with
dust
and

water

2

Inspecting
oil
condition

The
condition
of
oil

sticking
to
the

level

gauge
indicates
whether
to
over

haul
and

repair
the
transmission

or

look

for
the

defective

part

If
the

oil
has
deteriorated
into

a

varnish
like

quality
it

causes
the
con

trol
valve
to

stick
The
blackened
oil

gives
the

proof
of
the
burned
clutch

brake
band

etc
In

these
cases
the

transmission
must
be

replaced

Notes
a
In

oil
level

checking
use

special

paper
waste
to

handle

the
level

gauge
and
take

care

not
to
let
the

scraps
of

paper

and
cloth

tick
to
the

gauge

b
Insert

the

gauge
fully
and

take

it
out

quickly
before

splashing
oil
adheres
to
the

gauge
and
theu
observe
the

level

c

Use
automatic
transmission

fluid

having
DEXRON

iden

tIficatIon

only
in
the
3N71
B

automatic
transmission

d

Pay
atteutIon

because
the

oil
to

be
used
dIffers
from
that

i

used

in
the
Nissan
Full

Automatic

Transmission

3N7IA

Never
mix
the
oil
with

that
CHASSIS

Inspection
and

repair
of
oil

leakage

When
oil

leakage
takes

place
the

portion
near
the

leakage
is
covered

with
oil

presenting
difficulty
in
de

tecting
the

spot
Therefore
the

places

where
oil

seals
and

gaskets
are

equipped
are

enumerated
below

I
Converter

housing

The
rubber

ring
of

oil

pump
hous

ing

The
oil

eaI
of
oil

pump
housing

The
oil

seal
of

engine
crankshaft

The
bolts
of
converter

housing
to

case

2

Transmission
and
rear
extension

Junction
of
transmission
and
rear

extension

Oil
tube
connectors

Oil

pan

Oil

pressure
inspection
holes
Refer

to

Figure
AT

112

The

mounting
portion
of
vacuum

diaphragm
and

downshift
solenoid

Breather

and
oil

charging

pipe

Speedometer
pinion
sleeve

The
oil
seal

of
rear
extension

To

exactly
locate

the

place
of
oil

leakage
proceeds
as
follows

Place
the

vehicle
in
a

pit
and

by

sampling
the

leaked
oil
examine

whe

ther

it
is
the

torq
le
converter
oil
or

not

The

torque
converter
oil

assumes

color
like
red
wine

when

shipped

from
the

factory
so
it
is

ea

ily
distin

guished
from

engine
oil

or

gear
oil

Cleanly
wipe
off
the

leaking
oil
and

dust
and
detect

the

spot
of
oil

leakage

Use
nonflammable

organic
solvent

such
as
carbon

tetrachloride
for

wip

ing

Raise
the

oil

temperature
by

op

erating
the

engine
and

shift
the

lever

to
0
to

heighten
the

oil

pressure

The

spot
of
oil

leakage
will
then

be

found

more

easily

Note

A

the
oil

leakage
from
the

breather
does
not
take

place

except
when

running
at

high

speed
it
is

impossible
to
locate

the

spot
of

leakage
with
vehicle

stalled

AT
50
Checking
engine
idling

rprn

The

engine
idling
revolution
should

be

properly

adjusted

If
the

engine
revolution
is

too
low

the

engine
does
not

operate
smoothly

and
if

too

high
a

strong
shock
or

creep
develops
when

changing
over

from
N

to
D
or

R

Specified

idling
speed

650

rpm
at
D

position

800

rpm
at
N

position

Checking
and

adjusting
kick

down
switch
and

downshift

solenoid

When
the

kick
down

operation
is

not
made

properly
or

the

speed
chang

ing
point
is
too

high
check
the

kick

down
switch

downshift
solenoid
and

wiring
between
them

When
the

igni

tion

key
is

positioned
at
the

1st

stage

and
the

accelerator

pedal
is

depressed

deeply
the
switch
contact
should
be

closed
and
the

solenoid
should
click

If

it

does
not
click
it

indicates

a
defect

Then
check

each

part
with

the

testing

instruments

See

Figure
AT
I09

0
0

1
M

r

7

I

Y

ATl08

Fig
A
T
l

09

Downshift
solenoid

Note

Watch
for
oil

leakage
from

transmission
case

Judgement
in

measurmg

line

pressure

I
Low

idling
line

pressures
in
the

ranges
D
2
loR

and
P

It
can

be
artributed
to
trouble
in

the

pressure
supply
system
or
too
low

output
of

power
caused

by

1
A

worn
oil

pump

2

An
oil

pressure
leakage
in
the
oil

pump
valve

body
or

case

3
A

sticking
regulator
valve

2
Low

idling
line

pressures
in

cer

tain

ranges
only

It

is
caused

pressumabIy
by
an
oil

leakage
in

the
devices
or
circuits
con

nected
to
the

relevant

ranges

1
When
there
is
an
oil

leakage
in

the

rear
clutch
and

governor
the
line

pressures
in
D

2
and
I
are

low

but
the

pressure
is

normal
in

R

2

When

an
oil

leakage
occurs
in

the

low

and
reverse
brake
circuit

the

line

pressures
in

R
and
p

are
low

but
the

pressure
is

normal
in
0

2

and
I

3

High
idling
line

pressures

It

is

presumed
to
be

caused

by
an

increased
vacuum
throttle

pressure

owing
to
a

leakage
in
the

vacuum
tube

or

diaphragm
or

by
an
increased
line

pressure
due
to
a

sticking
regulator
CHASSIS

valve

Vacuum

leakage
is

checked

by
di

reetly
measuring
the

negative

pressure

after

removing
the
vacuum

pipe

A

puncture
of
the

vacuum
dia

phragm
can
be

easily
ascertained

because
the

torque
converter

oil
is

absorbed
into
the

engine
and
the

exhaust

pipe
blows

up
the
white

smoke

4

Checking
items

when
the
line

pressure
is

increasing

In
trJs

checking
the
line

pressure

should
be
measured
with

vacuums
of

450
mmHg
and
0

mmHg
in
accordance

with
the
stall
test

procedure

test

procedure

1
If
the
line

pressures
do

not

increase

despite
the
vacuum
decrease

check
whether
the
vacuum
rod
is

incorporated

2
If

the
line

pressures
do
not
meet

the
standard
it
is
caused

mostly
by
a

sticking
pressure
regulating
valve

pres

sure

regulating
valve

plug
or

amptifier

TROUBLE
SHOOTING

CHART

Inspecting
items

1

Inspection
with

automatic

trans

mission
on

vehicle

J

AT
54
A
Oil

level

B

Range
selecr

linkage

C
Inhibitor
switch
and

wiring

D

Vacuum

diaphragm
and

piping

E

Downshift
solenoid
kick
down

switch
and

wiring

F

Engine
idling
rpm

G

Oil

pressure
throttle

H

Engine
stall

rpm

I
Rear
lubrication

J

Control
valve

manual

K

Governor
valve

L
Band

servo

M
Transmission
air
check

N
Oil

quantity

o

Ignition
switch
and
starter

motor

P

Engine
adjustment
and
brake
in

spection

2

Inspection
after

inspecting
auto

matic
transmission

on
vehicle

m

Rear
clutch

n
Front
clutch

q
Band

brake

r

Low
and
reverse
brake

s

Oil

pump

Leakage
of
oil

passage

u

One

way
clutch
of

torque
converter

v

One

way
clutch
of
transmission

w

Front
clutch
check
ball

x

Parking
linkage

y
Planetary
gear

BODY

FRONT
FENDER
AND
FRONT
END

CONTENTS

FRONT
FENDER

Removal

FRONT
BUMPER
BF
17

BF
17

BF
18

FRONT
FENDER

i
RADIATOR

GRILLE

OUTSIDE
MIRROR
BF
18

BF18

1
Front
fender

2
Cowl

top
sealer

3
Front
fender
sealer

4
Cowl

top
5
Side

dash
board

6
Front

pillar

7
Front

bumper
8
Front

bumper
stay

9
Front

bumper
side
bracket

10

Bumper
side
bracket
shim

Removal
Fig
BF
27

Front

fender
and

front
end

components

I

Open
the
hood
disconnect
the

battery
terrninal

for

the
sake
of

safety
and
disconnect

wirings
for
the

head

lamp
and
side
marker

lamp
at
their

connecting
terminals

2
Remove
the
front

bumper
radiator

grille
and

radiator

grille
surround

3
Remove
the

sm

moulding
and

holding
the
fender

remove
it

Fig
BF
28

Removing
front
fender
I

BF
17

BACK

DOOR
TORSION
BAR
BODY

A

D

Installation
Fig
BF
42

Installing
back
door
torsion
baT

I

Fully

open
the

back
door
and
set
the

hinge
link

and

torsion

bar
to
condition
1

of

Figure
BF
42

2

Apply
a
torsion
bar

wrench

special
tool

ST08710oo0
to
one
end
of
the
torsion
bar
and
hook
it

from

position
II
to
III
of
the

Figure
BF42
The
torsion

bar

may
be
set
either

from
left
or

right

REAR
BUMPER

Removal

Disconnect

wiring
for
the
license

plate
lamp
loosen

the

bumper
installation
bolts
from
the

luggage

compartment

and
remove
the

bumper

DOORS

CONTENTS

DESCRIPTION

DOOR
CONSTRUCTION

Removal

Adjustment

DOOR
TRIM

Removal

DOOR

LOC
MECHANISM

Front

door
lock
removal
SF
24

SF
25

SF
26

SF
26

SF
27

SF
27

SF
27

SF
28

DESCRIPTION

The

cross
sectional
door

sash

provides
with

high

rigidity
and
the
door
sash
is
secured

on
the
door

panel
by

means
of

welding

The
door
lock
is
of

a
knob

lock

type
and
the

inside

handle
is
of
a

pull
rise

type
Front

door
lock
installation

Rear
door
lock
removal

Rear
door
lock
installation

DOOR
GLASS
AND
REGULATOR

Removal

Installation

SIDE
WINDOW

Removal
SF
28

SF
29

SF

29

SF
29

SF
30

SF
31

SF
31

SF
31

The
inside

handle
bracket
is

provided
with
a
weak

point
so
that

a
load

is
absorbed
when

a

large
load

is

applied
to
the
inside
handle

during
an
accident
The

outside

handle
is

of
a

pull

up
type

SF
24

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

Removal
and
installation

The

rear
window
electric
defroster

glass
is
removed

from
or
installed
on
its

position
in
the

same
manner

as

that
for
the
standard

rear
window

glass

Heat
wire
harness

1

Fig
BF
66
Rear

floor
wiring
Note
a

Use
care
not
to

give
scratches
and

wiring

b
Remove
weather

strip
whenever

glass
is
to
be

replaced

After

glass
is
installed
in

place
apply
sealant

between

panel
and
weather

strip

1

Connection
Specifications

Glass

Semi

tempered
heat

absorbing

type

Power

consumption
75W

l2V

Heating
wire
Baked

on
rear
window

Interior
side

Heating
wire

coverage

Horizontal

Vertical
Full
width

390
mm
15
35
in

Inspection
and

repair

Ground
terminal
How
to

locate
a
broken

heat
wire

and
a
break

a
Method
I

Start
the

engine
and
turn

on
the
window

defogger
system
If
the
area
around
a

specific
heat
wire

is
not

defogged
that
line

is
broken

n
if
U

i

p
w
w

j
w

j
fj

f

i

j
L
1

2
Defogged
area

Broken
heat
wire

Fogged
area

Fig
BF
69

Defogging
pattern

BF
34

BODY

INSTRUMENT
PANEL

CONTENTS

REMOVAL
BF
42

REMOVAL

Fig
BF
88

Removing
instrument

panel

Note
There
are
two

types
of
instrument

panel
square

type
and
round

type
However
both

of
them

are

removed
and

reinstalled
in
the
same
manner

Disconnect
the

battery
cable
at
the

battery
terminal

2
Disconnect
the

wiring
harness
connector
units

Disconnect
the
instrument
harness
from
the

engine

compartment
harness

Disconnect
the
instrument
harness

from
the
turn

signal

switch

Disconnect
the

instrument
harness

frorn
the
body

harness

Disconnect
the
instrumen
t
harness
connected
to

the

door
switch

stop
lamp
switch
flasher
unit

and

passing

light
relay
option
REINSTALLATION
BF
43

Note
When

disconnecting
the
wiring
harness

recom

mend
to
use

tags
for

identifying
their

relationship

3
Disconnect
cables
for
radio
antenna
and

speaker

4
Remove
the

package
tray
the
shell
cover
and
turn

signal
switch

Note
Work

may
be
carried
out
without

removing
die

steering
wheel
However
it
is
recommended
to

remove
the
steering
wheel
50
that
work
can
be

carried
out
more
easily

5
Disconnect
the

speedometer
cable

from
the

speedometer
unit

6
Disconnect
the
heater
control
cable
at
the
heater

side

Fig
BF
89

Removing
imtrument

panel
Ii

BF
42

DATSUN
1200

MODEL
B
11
0

SERIES

I
NISSAN

I

NISSAN
MOTOR
CO
LTD

TOKYO
JAPAN
SECTION
BE

BODY

ELECTRICAL

WIRING

FUSE

LIGHTING
SYSTEM

HORN

METERS
AND

GAUGES

WINDSHIELD
WIPER

AND

WASHER

IGNITION
SWITCH
AND

STEERING
LOCK

CLOCK

RADIO

HEATER
BE
1

BE
6

BE
7

BE
15

BE

18

BE
26

BE
29

BE

31

BE
32

BE

34