1977 DATSUN PICK-UP clock

HAND
BRAKE

WARNING
LAMP

DESCRIPTION

The
hand

brake

warning
lamp
glows

when
the
hand
brake
is

applied

When
the

ignition
switch
is

set
to

ON
current
flows
from
the

ignition

switch

to
the

warning
lamp
When
the

hand
brake
is

applied
hand
brake

warning
switch
is
closed
and

warning

lamp
glows

Fuse

M

Ignition
5
tch

Fusible
link

From

battery
I

YG

1
1

Hand
brake
sWitch

BE314

Fig
BE
28

Circuit

of
hand
broke

warning

Iystem
Body
Electrical

System

HAND
BRAKE

SWITCH

To

remove
hand
brake

switch
dis

connect

lead
wire

pull
switch

out
of

hand
brake

control
bracket

and
with

draw
switch

and

wiring

assembly
METER

ILLUMINATION

INDICATOR
AND

WARNING

BULBS

REMOVAL
AND

INSTALLATION

To

replace
bulb
turn

bulb
socket

counterclockwise
to
dismount
it

from

combination
meter
if

necessary
dis

connect
lead
wire

connector
from

printed
circuit

and
remove
bulb
from

socket

BULB

SPECIFICATIONS

Item

Meter
illumination

lamp

Turn

signal
indicator

lamp

High
beam

indicator

lamp

Oil

pressure
warning

lamp

Charge
warning

lamp

Hand
brake

warning

lamp

Clock

illumination

lamp
SAE
Trade

Bulb
No
Wattage

Candle

power

W

e

161

161

161

161

161

158

158
1
7

I
x3

1
7

I

1
7
I

I
7
I

1
7

I

3
4
2

3
4
2

TROUB

E
DIAGNOSES
AND

CORRECTIONS

SPEEDOMETER

Condition

Speedometer
pointer

and

odometer
do
not

operate

Unstable

speedometer

pointer

Unusual
sound

occurs

in

response
to

in

crease
in

driving
speed
Probable
cause

Loose

speedometer
cable
union
nut

Broken

speedometer
cable

Damaged
speedometer
drive

pinion
gear

Transmission
side

Inoperative

speedometer

Improperly
tightened
or
loose

speedometer

cable

union
nut

Faulty
speedometer
cable

Inoperative
speedometer

ExceS

jvelybent
or
twisted

speedOmeter

cable
inner

wire

or
lack

of
lubrication

Inoperative
speedometer

8El8
Coirective
action

Retighten

Replace

Replace

Replace

Retighten

Replace

Replace

Replace
or
lubricate

Replace

Body
Electrical

System

ELECTRICAL
ACCESSORIES

CONTENTS

HORN

DESCRIPTION

REMOVAL
AND
INSTALLATION

IGNITION
SWITCH

REMOVAL
AND
INSTALLATION

INSPECTION

WINDSHIELD
WIPER
AND
WASHER

REMOVAL
AND
INSTALLATION

INSPECTION

RADIO

REMOVAL
AND
INSTALLATION

ADJUSTMENT

CLOCK

REMOVAL

I
NST
ALLA
TION

HEATER

DESCRIPTION

AIRFLOW

HEATER
UNIT
ASSEMBLY
BE
21

BE
21

BE
21

8E
n

BE
22

BE
22

BE
23

BE
23

BE
23

BE
25

BE
25

BE
25

BE
25

BE
25

BE
26

BE
26

BE
26

BE
28

BE
29

HORN

DESCRIPTION

The

horn
circuit
includes

a
horn

relay
Current
from
the

battery
flows

through
the
fusible
link
and
fuse
to

the
horn

relay
terminal
B

where
it
is

shunted

by
the
two
circuits
In
one

circuit
terminal
S
the
current
flow
is

supplied
through
the
solenoid
and

Fusible
link

Qi
att
Fu

H

I
HIBQ

t
J

JJI

L
J

Hornrelay

Qm
HEATER
CORE

FAN

MOTOR

CONTROL
ASSEMBLY

ADJUSTMENT

SPECIFICATIONS

TACHOMETER

REPLACEMENT

8UL8
REPLACEMENT

SEAT
8ELT
WARNING

SYSTEM

DESCRIPTION

REMOVAL
AND
INSTALLATION

WARNING
LAMP
BULB
REPLACEMENT

INSPECTION

TROUBLE
DIAGNOSES
AND

CORRECTIONS

HORN

WINDSHIELD
WIPER
AND
WASHER

RADIO

Horn
button

BE859A

Fig
BE

29
Circuit

diagram
of
horn

sy
tem
horn
button

to
the

ground
In

the

other
circuit
terminal
H
the
current

flow
is

supplied
through
the

relay

contacts
and
horn

Horn
bracket

serves
as
a

grounding

When
the
horn
button
is

pressed

current
from
the

battery
energizes
the

solenoid
As
the
solenoid
is

energized

the

relay
contacts
are
closed
This

allows
the
current
to
flow
to
the
horn

BE
21
REMOVAL
AND

INSTALLATION

Horn
8E
29

BE
29

BE
29

8E
29

BE
30

BE
30

BE
30

8E
30

8E
31

BE
31

BE
31

8E
31

8E
31

BE
33

8E
33

8E

34

BE
35

I

Disconnect

battery
ground
cable

2
Disconnect
horn
wire
at
terminal

on
horn

body

3
Remove
horn

retaining
bolt

4
Install
horn
in
the
reverse
se

quence
of
removal

Horn

relay

The
horn

relay
is
installed
on
the

hoodIedge
on
the

right
side
of
the

engine
compartment

I
Disconnect

battery
ground
cable

2
Disconnect
horn
relay
wire
con

nector
at
terminals
on
horn
relay

3
Remove

retaining
screws

4
Install
horn

relay
in
the
reverse

sequence
of
removal

Body
Electrical

System

WINDSHIELD
WIPER
AND
WASHER

REMOVAL
AND
INSTALLATION

Wiper
linkage

I

Remove
wiper
blade
and

arm

assembly
from

pivot

2
Remove
cowl

top
grille
See
Sec

tion
BF

3
Remove
two

flange
nuts

retaining

pivot
wiper
linka
e

to
cowl

top

4
Remove

stop
ring
that
retains

connecting
rod
to

wiper
motor
arm

5
Remove

wiper
motor

linkage
as

sembly

6
Install

wiper
motor

linkage
in
the

reverse

sequence
of
removal

Fig
BE
34

Removing
wiper
linkage

7
Install

wiper
arm
and
blade

assembly
in

correct

sweeping
angle

See

Figure
BE
35
for
correct

installing

dimensions

JC

I

i
25
mm
0

984
in
r

BE862A

Fig
BE
35

Wip
J

arm
irutallation
1

Windshield

wiper
blade

2
Windihield

wiper
arm

3

Wiper
motor

4

Wiper
motor
bracket

5

Connecting
rod

6
Pivot

BE685B

Fig
BE
33
Wind
hield

wiper

Wiper
motor

I
Remove

cowl

top
grille

3
Remove

stop
ring
that
connects

wiper
motor
arm
to

connecting
rod

3
From
under

instrument

panel

disconnect

wiper
motor
harness
at

connector
on

wiper
motor

body

4

Remove
three

retaining
screws

and

pull
out

wiper
motor
forward

5
Install

wiper
motor
in

the
reverse

sequence
of
removal

Fig
BE

36

Wiper
and
washer
switch

1
Press
in
switch
knob
turn
it

counterclockwise
and

pull
it
out
of

switch

2
Unscrew
escutcheon
and
remove

escutcheon
and

spacer

3
Reach

up
from
underneath
instru

ment

panel
disconnect

wiper
switch

multiple
connector
from
instrument

harness

wiring
assembly
and
remove

spacer
and
switch

4
Install

new
switch
in

the
reverse

sequence
of
removal

BE

23
Washer

pump

The
washer

pump
and
washer
fluid

tank
are

integral

parts
and
are
serviced

as
an

assembly

Caution
for
windshield
waBher

operation

I
Be
sure
to
use

only

washing
solu

tion

Never

use
mix

powder
soap
or

detergent
with
solution

2
Do

not

operate
windshield
washer

continuously
more
than
30

seconds
or

without
washer
fluid
This
often

causes

improper
windshield
washer

operation
Normally
windshield
wash

er
should
be

operated
10

seconds
or

less
at
one
time

I

Disconnect
two
washer

pump

lead
wires

at
connectors

2
Remove

hose
from
washer

pump

and
drain

washer
fluid

3

Pull
out
washer
tank
and
motor

assembly
from
tank
bracket

4
Install
washer
tank

and
motor

assembly
in
the

reverse

sequence
of

removal

Washer
nozzele

Access
for
washer
nozzle
removal
is

obtained

by
disconnecting
vinyl
tube

and

removing
washer
nozzle

retaining

screw
from
cowl

top

When
washer
nozzle
is
installed
or

when
washer
fluid
is

not

sprayed

properly
adjust
nozzle
direction
by

bending
nozzle
tube
so
that
washer

fluid
is

sprayed
in

range
indicated
in

Figure
BE
37

450
450

j217
72

r

l
1772

Ii
L

1

00
Li
L

J

270

1

to
63
3
94

1

Unit
nun

in

BE863A

Fif
BE

37
Waaher
nozzle

adjuatment

INSPECTION

Wiper
motor

I

Disconnect

wiring
connector

from

wiper
motor

2

Connect
test
lead
between
B
ter

minal
on
motor
ide
and

battery
posi

RADIO

REMOVAL
AND

INSTALLATION

Radio

Removal

Pull
radio
knobs
offradio
control

shafts
Body
Electrical

System

2
Remove
radio

holding
nuts
and

washer
from
radio

control
shafts

3
Remove
radio

bezel
from
the

front

of
radio

4

From
under
instrument

panel

disconnect
antenna
cable
and
lead

wires

power
lead
and

speaker
lead

5

Remove
radio

from
instrument

panel

Installation

Fr
m
behind
instrument

panel

position
radio

to
instrument

panel

2
Install
radio
bezel
to
the

front
of

radio

3
Install
washers
and
nuts
on

radio

control
shafts
and

tighten
them
secure

ly
Then
install
control
knobs

4
Connect
antenna
cable
and
lead

wires

power
lead
and

speaker
lead

Antenna
and

antenna
cable

Removal

From
behind
instrument

panel

disconnect
antenna
cable
at
conne
tor

2
Remove

plug
on
antenna
base
and

remove
antenna
base

retaining
screw

3
Remove

antenna
and
cable
as

sembly
from
fr
ont

pillar

4
Unscrew
antenna

clip
from
front

pillar
if

necessary
aE323

Fig
BE

41
Radio

Installation

Remove
rubber

plugs
that
cover

antenna

mounting
opening
in
front

pillar
when

installing
radio
antenna

on
vehicle
that
is
not

equipped
with

radio

2
Thread

mounting
stud
of
antenna

clip
into

upper
antenna

mountins

opening

3
Insert

antenna
cable
into

lower

antenna

mounting
opening
and

place

ant
nna

base
in

position

4

Install
antenna
base

retaining

screw

5
Route
antenna
cable

along
upper

dash

panel
to
radio

6

Connect
antenna
cable
at
con

nector

BE
25
t

BEB67
A

Fig
BE
42
Radio
ant

nna

ADJUSTMENT

Antenna
trimmer

When
a
new

radio
receiver
antenna

or
antenna
feeder
is
installed
antenna

trimmer

should
be

adjusted

Extend
antenna

completely

2
Tune
in
the

weakest
station
be

tween
12
and
16
1

200
to
1
600KC

on
dial

Noise

may
be

generated
but
dis

regard
it

3
Turn

antenna
trimmer
to

right

and
left

slowly
and
set
it
at
a

position

where

receiving
sensitivity
is

highest

SE133

Fig
BE
43

Adjwting
antenna
trimmer

CLOCK

REMOVAL

Remove

battery

ground
cable

2
Remove
cluster
lid

following

instructions
in

steps
I

to
4

of
Removal

in

Combination
Meter

3

Disconnect
three
wire
connectors

of
clock
from
combination
meter

printed
circuit

and
instrument
harnes

wiring

4
Remove
three
s
rews
and
remove

clock
from
cluster
lid

INSTALLATION

I
Position
clock
to

cluster
lid
and

install
three
screws

2

Connect
three
wire
connectors
of

clock

to
each
connection
two
to

combination
meter

printed
circuit
one

to
instrument
h
ness

wiring

3

Install
cluster
lid
to
instrument

panel

4

Connect
battery

ground
cable

HEATER

DESCRIPTION

@
Body
Electrical

System

Fig
BE
44
Clock

1
Defroster
nozzle
L
U

2
Deflor
tcr
duct
L
R

3
Heater

control

4

Resistor

5
Heater
motor

6
Heater
case
7
Ventilator
knob

8
Heater
core

9
Conuol
cable

clip

10
Heater
cock

11
Defroster

duct
R
H

12
Defroster
nozzle
R
H

BE687B

Fig
BE
45
Heater
comtruction

BE

26

m
J
c
@
@
r

1
I
I

I
II

U
j
J

r
U

I
IT

L
U
L
L

@

Qj
flll
I

1

I
I

1

lL

to
t
l

Q
1
To
room
Jamp
cable

2
To
light
switch

3
To
fuse

4
To
tachometer
or
clock

5
To
hazard
flasher
unit

6
To
stop
lamp
switch

7
To
ignition
switch

8
To
hazard
switch

9
To
tU
and
dimmer
switch

10
To
check
connector

11
To
AMP
M
T
only

11
To
combination
instrument

Non
California
mode15
except
for
Canada

13
To
combination
meter

14
To
flasher
unit

IS
To
kickdown
switch
AfT
only

16
To
hand
brake
switch

17
To
heater
motor

18
To
illumination
control
rheostat
19
To
wiper
switch
light
switch
illumination

lamp

20
To
wiper
switch

21
To
cigar
lighter

22
To
heater
control
illumination
lamp

23
To
radio

24
To
heater
control

25
To
belt
and
E
G
R
warning
lamp

Non
California
models
or
floor
te
peratuJe

California
models

26
To
heater
control
illumination
lamp

27
To
buzzer

28
To
belt
warning
timer
U
S
A
Olodels

29
To
indicator
lamp
AfT
only

30
To
cooler
harness

31
To
wiptr
motor

32
To
door
switch
R
H

33
To
engine
compartment
harness

34
To
floor
harness

E
m

S
@
o
J
o

Q
m
CD
n

Ql
en
I
i
3

Air
Conditioning

Low

pressure
gauge

Compound
pres
lIrt

gaug
High
rHe
ure

g
Uge

c

7

I

Back
se
ted

Full
counter

J

clockwise

Ji

r

rnF
r

r1
gL

r

W
t

g

2

Connection
to
service
valve

I

Fully
close
both
valves
of
mani

fold

gauge
Connect
high
and
low

pressure
charging
hoses
to
manifold

gauge

2
Remove

caps
from
service
valves

Connect
high
and
low

pressure
charg

ing
hoses
to
service
valves
in

system

The

refrigerant
gas
wili
be

discharged

since
check
valve
is

open
when

pressing
charging
hose
onto

service

valve

3

Next
loosen
the

connection
fit

ting
of

charging
hose
at
manifold

gauge
side
for
2

to
3
seconds
to

purge

any
air

inside

charging
hose

by
the

pressurized
gas
in

system

Disconnedion
from

service
val
v

I

Fully
close
both
valves
of
mani

fold

gauge

2

Disconnect
two

charging
hoses

from
service
valves
At

this
time
the

gas
will
be

discharged
until
check
valve

is
closed
Therefore
disconnect
hose

quickly

Caution
Work
with

fingers
protected

with
cloth

against
frostbite

by
re

fri
l
fant
To
low
side
To
vacuum

pump
OI

To

high
ide

rvicc
valve

refrigerant
can

service
va
lve

HANDLING
SERVICE
VALVE

An
automatic
check
valve
is
built

into

service
valve
When
this
valve

presses
against
the
connection

fitting

that
is
when

charging
hose

is
con

nected
to
service
valve
the
valve
is

open
When

charging
hose
is
discon

nected
the
valve
is
closed
automatical

ly
Always
observe
the

following
usage

precautions

Always
install
valve

cap
after

using
service
valve

When

high
speed
opera
tion
is

per

formed
without
valve

cap
a

negative

pressure
will

gradually
build

up
at

the

low

pressure
side
of

system
and
air

may
be
sucked
in
In
addition
dirt
and

dust

will

easily
enter
the
valve
result

ing
in
foreign
matter

entering
the

system

L

5V

j

Close

AC
l0
Front
seated

Full
clockwise

AC243

Fig
AC
13

Manifold
gauge

2
Check
valve
will
be
half

opened

during
connection
and
disconnection

of

charging
hoses
and

refrigerant
will

be
forcefully

discharged
Therefore

connect
and
disconnect

charging
hoses

quickly
while

pressing
flare
nut

of

charging
hose

against
service

valve

Caution
Work
with

fingers
protected

with
cloth

against
frostbite

by
re

frigerant

3

Since
close
contact
between
the

thread
of
valve

eap
and

the
thread
of

service

valve
will

prevent
gas
leakage

keep
these
sections
clean
and
free
of

scratches
and
damage

4

Since

packing
of

charging
hose

will
be

lost

during
long
use

always

check

packing
prior
to

installing
charg

ing
hose

J

17

t

1
1

t

Cap

2

Service
valve

3

Charging
hose

AC733

Open

Fig
AC
14
Service
oolve

b

r
r

AC734

Fig
A
C

15
Service
value

docK
wise

n

r
Air

Conditioning

HANDLING
CAN
TAP

A

wide

variety
of
can

taps
are

available
The

following
procedures

apply
to

conventional

can

taps

For
the

correct

usage
refer
to

the

manufacturer
s

instructions

Caution
Use

can

tap
of

good
quality

I
Connect

charging
hose
to
the

center
fitting
of
manifold

gauge
At

this
time
confirm
that
both
stems
are

fully
turned
in

front
seated

2
Turn

can

tap
handle

fully
coun

Counterclockwise

s

r

@

A

rn

Purging
air

n

R
I2

AC
terclockwise

so
that
the

needle
is

pulled

up

3
Attach

can

tap
to

refrigerant
can

firmly

4

Turn

can

tap
handle

fully
clock

wise
to

make
a

hole
in

refrigerant

can

5

Turn
the
handle

fully
counter

clockwise
to
raise
the

needle

Refriger

ant

gas
will

flow

up
to
the
center

fitting
of

manifold

gauge

6
Loosen
the

connection
a
t

the

center

fitting
of
manifold

gauge
for
a

few
seconds
to

purge
air

inside

charg

ing
hose
See

Figure
AC
16

1
Can
tap
handle

2

Charging
hose

3
Needle

4

Refrigeran
t
can

AC246

AC247

Fig
AC
16
Can

tap
and

pw
ging
air

q