wiring DATSUN PICK-UP 1977 Owner's Manual

BF646A
Body
Frame

INSTRUMENT
PANEL

1

Bracket
welded
to
dash

panel

2
Nut

3
Instrument

panel
assembly

Fig
BF
41
Instrument

panel
assembly

INSTRUMENT

PANEL

REMOVAL
AND

INSTALLATION
2

Disconnect
heater
control
cables

from
heater

assembly

3
Disconnect

speedometer
cable
on

the
back

of

speedometer

4

Disconnect
antenna
and

speaker
Disconnect

battery
cables

8F
17
wiring
harnesses
at
connectors

5

Disconnect
relative

wiring
har

nesses
from

instrument

panel
at
con

nectors

6

Remove

steering
column
shell

Removal
of

steering
wheel
at
this

stage

facilitates
further

removal
of
instru

ment

panel

7

Remove
two
side

ventilator

knobs

Remove

package
tray
attaching

bolt

and
detach

package
tray

2

I

Package
tray

2
Side

ventilator
knob

Fig
BF
42

Package

tray

8

Support
instrument

panel
assem

bly
and

remove
five

attaching
bolts

from

it

9

Withdraw
instrument

panel
as

sembly
while

lifting
it

slightly

10

To

install
reverse

the
order

of

removal

DATSUN
PICK
UP

MODEL
620
SERIES

I
NISSAN

I

NISSAN
MOTOR
CO
LTD

TOKYO
JAPAN
SECTION
BE

BODY

ELECTRICAL

SYSTEM

BODY
ELECTRICAL
WIRING
BE
2

LIGHTING
AND
SIGNAL

BE
3

LAMP
SYSTEM

METERS
AND
GAUGES
BE
14

ELECTRICAL
ACCESSORIES
BE
21

EMISSION
WARNING
SYSTEM

BE
43

California
models

DESCRIPTION

Cables
are
covered
with
color

coded

vinyl
for

easy
identification
In

the

wiring
diagram
colors
are
indicated

by

one
or

two

alphabetical
letters

It
is
recommended
that
the

battery

be
disconnected
before

performing

any
electrical
service
other
than

bulb

or
fuse

replacement

In
addition
to
fuses
a
fusible
link

has
been

installed
to

protect
wiring

The
fusible
link
functions
almost
the

same
as
a

fuse

though
its
eharac

teristics

are
slightly
different
than

normal
fuses

CABLE
COLORS

Cable
colors
are

indicated

by
one
or

two

alphabetical
letters

B

Black
Be
Brown

G
Green

L
Blue

Lg
Light

green

R

Red
W
White
Y
Yellow

The
main

cable
is

generally
coded

with

a

single
color
The

others
are

coded
with
a

two
tone
color
as

follows

BW

Black
with
white

stripe

gR

Light
green
with
red

stripe

INSPECTION

Inspect
all

electrical

circuits
refer

ring
to

wiring
or

circuit

diagrams

Circuits

should
be

tested
for
conti

nuity
or

short
circuit

with
a

conven

tional
test

lamp
or

low

reading
volt

meter
Before

inspection
of

circuit

ensure
that

I
Each
electrical

component

part
or

cable
is

securely
fastened
to

its
con

nector
or
terminal

2
Each
connection

is

firmly
in

place

and

free
from
rust
and
dirt

3

No
cable

covering
shows

any

evidence
of
cracks

deterioration

or

other

damage

4

Each
terminal

is
at

a
safe

distance

away
from

any
adjacent
metal

parts

5
Each

cable
is
fastened

to
its

proper
connector
or
terminal
Body
Electrical

System

BODY
ELECTRICAL

WIRING

6

Each

grounding
bolt
is

firmly

pbnted

7

Wiring
is

kept
away
from

any

adjacent
parts
with

sharp
edges
or

high

temperature
parts
such

as
exhaust

pipe

8

Wiring
is

kept
away
from

any

rotating
or

working
parts
fan

pulley

fan
belt
etc

9

Cables
between
ftxed

portions

and

moving
parts
are

long
enough
to

withstand
shocks
and

vibratory
forces

Notes

a
Before

starting
to

inspect
and

repair

any
part
of
electrical

system
or

other

parts
which

may
lead
to
a

short
circuit

disconnect
cables
at

battery
terminals
as
follows

Disconnect

cable
at

negative

terminal

and
then
disconnect
cable

at

positive
terminal

Before

connecting
cables
to

battery

terminal
be
sure
to
clean
terminals

with
a

rag
Fasten

cable
at

positive

terminal
and
then

ground
cable

at

negative
terminal

Apply

grease
to

top
of
these

terminals
to

prevent
rust
from

developing
on

them

b
Never

use
a

screwdriver
or
senrice

tool
to
conduct

a

continuity
test

Use
test
leads

c
Never

ground
an

open
circuit
or

circuits
under
no
load
Use

a
test

lamp
12V
3W

or
circuit
tester
as
a

load

FUSE
AND

FUSIBLE

LINK

DESCRIPTION

The
fuse
and
fusible
link

are

protec

tive

devices
used
in

an
electrical
cir

cuit

When
current

increases

beyond

rated

amperage
fusible
metal

melts

and

the

circuit
is

broken

BE
2
MAINTENANCE

INSTRUCTIONS

Fuse

The
fuse

block
is
installed

under

the
instrument

panel
on
the
left

hand

drive

vehicle

BE848A

Fig
BE
1

Fuse
block

When
for
one
reason

or
another

fuse

has
melted
use

systematic
pro

cedure
to
check
and
eliminate
cause
of

problem
before

installing
new
fuse

Notes

a
If
fuse
is

blown
be
sure
to
elimi

nate
cause
of

problem
before
in

stalling
new
fuse

b
Use

fuse
of

specified

rating
Never

use
fuse
of
more
than

specified

rating

Co

Check
condition
of

fuse
holders
If

much

rust
or
dirt
is
found

thereon

clean

metal

parts
with
fine

grained

sandpaper
until

proper
metal
to

metal
contact
is
made

Poor

contact
in

any
fuse
holder
will

often
lead
to

voltage
drop
or

heating
in
the
circuit
and
could

result
in

improper
circuit

operation

Fusible

link

Fusible
link

protects

lighting

starting
charging
and

accessory
cir

cuits

A
melted
fusible
link
can
be
de

tected
either

by
visual

inspection
or

by

feeling
with

finger
tip
If
its
condition

is

questionable
use
circuit
tester
or

test

lamp
as

required
to
conduct

continuity
test
This

continuity
test

can
be

performed
in
the
same
manner

as
for

any
conventional
fuse
Body
Electrical

System

Notes

a
If
fusible

link
should

melt
it
is

possible
that
critical
circuit

power

supply
or

large
current

carrying

circuit

is
shorted
In
such
a

case

carefully
check
and
eliminate
cause

of

problem

b
Never

wrap

periphery
of
fusible

link
with

vinyl

tape
Extreme
care

should
be
taken
with
this
link
to

ensure
that
it

does
not
come

into

contact
with

any
other

wiring
har

ness
or

vinyl
or
rubber

parts
c

BEB49A

Fig
BE
2
Fusible
link

LIGHTING
AND
SIGNAL
LAMP
SYSTEM

DESCRIPTION

LIGHTING

SYSTEM
CIRCUIT
DIAGRAM

HEADLAMP

HEAD
LAMP
BEAM
REPLACEMENT

AIMING
ADJUSTMENT

FRONT
COMBINATION
LAMP

BUL8
REPLACEMENT

REMOVAL
AND
INSTALLATION

SIDE
MARKER
LAMP

BUL8
REPLACEMENT

REMOVAL
AND
INSTALLATION

ROOM
LAMP

BULB
REPLACEMENT

REMOVAL
AND

INSTALLATION

REAR

COMBINATION
LAMP

BULB
REPLACEMENT

REMOVAL
AND

INSTALLATION

LICENSE
LAMP

BULB

REPLACEMENT

REMOVAL
AND

INSTALLATION

ENGINE
COMPARTMENT
LAMP

LIGHTING
SWITCH

REMOVAL
AND

INSTALLATION

INSPECTION

ILLUMINATION
CONTROL
RHEOSTAT

REMOVAL
AND
INSTALLATION
CONTENTS

BE
4

BE
4

BE
5

BE
5

BE
5

8E
7

BE
7

BE
7

8E
7

BE
7

8E
7

BE
8

BE
B

8E
8

BE
8

8E
8

8E
8

8E
8

BE
8

8E
8

BE
9

BE
9

BE
9

8E
9

8E
9

8E
9
INSPECTION

KN08
ILLUMINATION
LAMP

BULB
REPLACEMENT

LAMP
BODY
REPLACEMENT

TURN
SIGNAL
AND
DIMMER
SWITCH

REMOVAL
AND
INSTALLATION

INSPECTION

STOP
LAMP
SWITCH

REMOVAL
AND
INSTALLATION

INSPECTION

DOOR
SWITCH

REMOVAL
AND
INSTALLATION

INSPECTION

HAZARD

SWITCH

REMOVAL
AND

INSTALLATION

INSPECTION

FLASHER

UNIT

REPLACEMENT

8ULB

SPECIFICATIONS

TROUBLE
DIAGNOSES
AND

CORRECTIONS

HEAD
LAMP

TURN
SIGNAL
LAMP

TAIL
LAMP
STOP

LAMP
AND

BACK
UP
LAMP

BE
3
1

BE
9

BE
10

BE
10

BE10

BE
10

BE
10

BE
10

BE
10

BE
10

BE
10

BE
10

BE
10

BE
11

BE
11

BE
11

BE
11

8E
11

BE
11

BE
12

BE
12

BE
12

BE
13

8E
13

Body
Electrical

System

Room

lamp
and

engine
compartment
lamp
system

FUSE

BLOC
K

C
J
QA

C
J
CJ

CJ
CJ
1

100
I
2

I

I
t1

Wf

t
fi

FUSIBLE

LINK
ROOM
LAMP

t

I
6

I

II
lA

FUSE
o
C
1

BATTERY

I
I

DOOR

SWITCH
L
H
l
ENGINE

ROOM
LAMP

I
0

I

1

HOOD

SWITCt
f

I
c

I

DOOR
SWITCHIR
H

l

Fig
BE
5
Room

lamp
and

engine
compartment
lamp

system
BE852A

HEADLAMP

if

BE300

Fig
BE
6
Head
amp

HEADLAMP
BEAM

REPLACEMENT

I

Remove
radiator

grille
retaining

screws
and
remove
radiator

grille

2

Loosen
three

headlamp
retaining

ring
screws
I
t

may
be

unnecessary
to

remove
screws
Note
Do
not
disturb

aiming
adjust

screws

3
Remove

retaining
ring
by
rotating

it
clockwise

4
Remove

headlamp
beam
from

mounting
ring
and
disconnect

wiring

8E
5
connector
from

behind
beam

Note

Rubber
cover
is

installed
at

back
of

headlamp
beam
The
con

nector
is

located
in

the
cover

5

Change
headlamp
beam
and
con

nect

wiring
connector

to
new
beam

6
Place

headlamp
beam
in

position

so
that
three
location
tabs
behind

beam
fit
in

with
three
hollows
on

mounting
ring
Make
sure
that

sign

Top
of
beam
lens
i
i
on

upper
side

7
Install

headlamp
retaining
ring

and

tighten
retaining
screws

8
Place

radIator

grille
in

position

and

tighten

retaining
screws

AIMING

ADJUSTMENT

lJ

ii
i
tooi

1
Ji

Y
4
nnn

4
I

Horiz
tal

ad

justment

l

BE30l

Fig
BE
7

Aiming
adjustment

FRONT

COMBINATION
LAMP

BULB
REPLACEMENT

1
Remove
two

retaining
screws
and

lens

2

Push
in

on
bulb
turn
it
counter

clockwise

and
remove
it
from
socket

3
Insert
new

bulb
into
socket

press

it
inward
and

rotate
it

clockwise
Make

sure
that
bulb
is

locked
in
its
socket

4

Place

packing
to

lamp
body
in

position
and
install

lamp
body
with

packing
lens
and
two

retaining

screws

REMOVAL
AND

INSTALLATION

To
remove

lamp
body
disconnect

wiring
at
connector
and
remove
wire

grommet
from

panel
Remove
two

retaining
screws
and

lens
and

withdraw

lamp
body
from
vehicle

Install
new

lamp
assembly
in
the

reverse

sequence
of
removal

SIDE
MARKER
LAMP

BULB
REPLACEMENT

1
Remove
two

retaining
screws

lens
and
rim

2
Push
in

on
bulb
turn
it

counter

clockwise
and

remove
it

from
socket

3
Insert
new

bulb
into
socket

press

it
inward
and
rotate
it
clockwise
Make

sure

that
bulb
is

locked
in
its
socket

4

Place

packing
to
lamp
body
in

position
and
install

lamp
body
with

packing
lens
and
two

retaining

screws

REMOVAL
AND

INSTALLATION

To

remove

lamp
body
disconnect

two
lead
wires

at
connectors
and

remove
wire

grommet
if

so

equipped

from

panel

Remove
two

retaining
screws
lens

and
rim
and
withdraw

lamp
body
from

vehicle

Install
new

lamp
assembly
in

the

reverse

sequence
of
removal
Body
Electrical

System

1

Screw

2
Lens

3
Bulb

4

Lamp
body

BE698B

Fig
BE
9
Front
combinntion

lamp

2

1

Packing

2

Lamp
body

3
Rim

4
Bulb

5
Lens

6
Screw
5

BE699B

Fig
BE
IO
Side
marker

lamp

BE
7

ROOM
LAMP

BULB
REPLACEMENT

1
Lens

2

Bulb

3

Lamp
body

4
Screw

Remove
lens
from

lamp
housing

2
Pull
bulb
forward
and
remove
it

from
socket

3
Push
new
bulb
into
socket

4
Install
lens

REMOVAL
AND

INSTALLATION

To
remove

lamp
assembly
discon

nect

battery

ground
cable
remove
two

retaining
screws
with
lens
removed

from

lamp
housing
dismount

lamp

1
Remove

six
lens

retaining
screws

and
lens

2
Push
in

on
bulb
and
turn
it

counterclockwise
to

remove
it
from

socket
Body
Electrical

System

J

CD

O
lux
Cab

8E700B

Fig
HE
ll
Room

lamp

housing
from
roof
rail
and

disconnect

two
wires
at
connectors

Install
new

lamp
assembly
in

the

reverse

sequence
of
removal

REAR

COMBINATION
LAMP

BULB

REPLACEMENT

1
Screw

2

Lens

3
Bulb

4

Rim

5

Lamp
body

@
BE70tB

Fig
BE
12
Rear
combination

lamp

3
Insert

new
bulb
into
socket

press

it

inward
and
rotate
it
clockwise

Make
sure
that
bulb
is
locked
in
its

socket

4
Place
lens
into

position
and
install

retaining
screws

8E
8
REMOVAL
AND

INSTALLATION

I

Disconnect

wiring
assembly
at

cormector

2
Remove
two
nuts
from
combina

tion

lamp
mounting
studs

3
Dismount
combination

lamp
as

sembly
from
vehicle

4

Replace
lamp
assembly
with
a

new
one

5
Install

new
lamp
assembly
in

the

reverse

sequence
of
removal

LICENSE
LAMP

BULB
REPLACEMENT

1

Screw

2

Bracket

3

Lens

4

Bulb
i
J

BE702B

Fig
HE

13
License

Iomp

1
Remove
lens

retaining
screw
if
so

equipped
and
remove
lens

2
Pull
out
bulb
and

replace
it
with
a

new
one

3

Install
lens

REMOVAL
AND

I
NSTALlATI
ON

1

Disconnect
lead
wire
at
con

nector

2
Remove

lamp
bracket

retaining

screws
and

lamp
assembly

3
Install

new

lamp
assembly
in
the

reverse

sequence
of
removal

ENGINE

COMPARTMENT

LAMP

2

1

Screw

2

Bracket

3
Bulb

BE
7038

Fill
BE
14

Engine
compartment
lamp

Bulb
can

be

replaced
by

pushing
in

on
bulb
and

turning
it

counterclock

wise

To

replace
engine
compartment

lamp
assembly
remove
one
SCrew

retaining

lamp
bracket
to

upper
dash

panel
and
disconnect
wires
at
connee

tors

Engine

compartment
lamp
switch

can
be

replaced
by
disconnecting
lead

wire

at
connector
and

pulling
switch

assembly
out
of
its
bracket
To
install

switch

assembly
to
bracket
clean
dirt

dust
and

rust
from
the

opening
groove

of
bracket
and

press
down
on
switch

head
until
it
fits
in
with
bracket

LIGHTING

SWITCH

REMOVAL
AND

INSTALLATION

I

Disconnect

battery
ground
cable

2
Press
in
switch

knob
turn
it

counterclockwise
and

pull
it

out
of

switch

3

Unscrew
escutcheon

and
remove

escutcheon

and

spacer

4

Reach

up
from
underneath

instru

ment

panel
disconnect

lighting
switch

multiple
connector

from
instrument

harness

wiring

assembly
and

remove

spacer
and

lighting
switch

5

Install

new
switch
in

the
reverse

sequence
of

removal
Body
Electrical

System

INSPECTION

Remove

lighting
switch
from
vehi

cle

following
the

procedures
given
in

Switch

position
1

terminal

ILLUMINATION

CONTROL
RHEOSTAT

This
illumination
control

rheostat

controls
the

brightness
of
the
iliumina
Removal
and

Installation

Test

continuity
through

lighting

switch

by
using
test

lamp
or

ohm

meter

I
I
SWITCH

TERMINAL
P
T10N

ICI
F
2

I
I

b

I
4

I
I

6
terminal

I
3

I
6

3
terminal

4
terminal

BE855A

Fig
BE
15

Lighting
switch

tion

lamps
of
the

combination
meter

heater

control

wiper
and

lighting

switch
knob
it

is
a

variable
resistor

and

its
value
can
be

controlled

by
a

knob

REMOVAL
AND

INSTALLATION

I

Pull
out
knob
of

switch

2

Remove

ring
nut

retaining
switch

to
instrument

panel

3
Disconnect
lead

wires
for

switch

at

connector

4

Switch

body
can
be
taken
out

from

behind
instrument

panel

5

Installation
is

in
the

reverse
se

quence
of
removal

BE

9
0@

BE
7048

Fig
BE
16
Illumination

control
rhe08tat

INSPECTION

Test

continuity
between
two
lead

wires

with
a

test

lamp
or

an
ohm

meter

When
switch
is
in
the
OFF

position
continuity
must
not

exist
In

the
ON

position
resistance

between

the

two
lead
wires

must
be
between
0

and

3512

KNOB
ILLUMINATION

LAMP

The
illumination

lamp
is

located
on

the
illumination
control
rheostat

This

lamp
illuminates
the
knob
of

the

wiper
switch
and

lighting
switch

with

fiberscopes

The

fiberscopes
between
the
knobs

and

cap
of
the
illumination

lamp
carry

the

light
through
their
tubes
with
the

inner

reflective
walJ

CID

1
Bulb
socket

2

Screw

3

Lamp
body

8E705B

Fig
BE
17
Knob
illumination

lamp

BULB
REPLACEMENT

I
Reach

up
from
under
the
instru

ment

panel
and

pull
out
socket
with

bulb
from

lamp
body

2

Pick

up
bulb
and

install
a

new

one

3

Installation
is
in
the

reverse
se

quence
of

removal

LAMP
BODY
REPLACEMENT

1
Remove
illumination

control

rheostat
Refer
to
section

of
illumina

ti

on
control
rheostat
for
removal

2
Disconnect
lead
wires
for

illumination

lamp
at
connector

3
Remove
screw

retaining
lamp

body
to
instrument

panel

Lamp
body

can
then
be

taken
out

easily

4

Installation
is
in
the
reverse
se

quence
of
removal

TURN
SIGNAL
AND

DIMMER
SWITCH

REMOVAL
AND

INSTALLATION

I

Remove

steering
wheel

Refer
to
the
related
section

Steering
Body
Electrical

System

2
Unhook

wiring
assembly
from

clip
that
retains

wiring
assembly
to

lower
instrument

panel

3
Disconnect

multiple
connector

and
lead
wire

from
instrument
harness

wiring

4
Remove

shell
covers

Upper
and

Lower

5
Loosen
two
screws

attaching

switch

assembly
to

steering
column

jacket
and

remove
switch

assembly

6
Position
switch

assembly
to
steer

ing
column

jacket
Make
sure
that
a

location
tab
or
screw
fits
in

with

hole
of

steering
column

jacket
7

Tighten
two

attaching
screws

8

Install
shell
covers

9

Connect

multiple
connector
and

lead
wire

to
instrument

harness

wiring

10

Clip
wiring
assembly
at
lower

instrument

panel

II

Install

steering
wheel

INSPECTION

Test

continuity
through
lighting

switch

by
using
test

lamp
or
ohm

meter

3

terminal

4
terminal

7
terminal

Dimmer

R

STOP
LAMP
SWITCH

REMOVAL
AND

INSTALLATION

Stop
lamp
switch
is
mounted
at
the

bottom
of

pedal
and

steering
post

bracket

I
Disconnect
battery
ground
cable

2
Disconnect
lead
wires

at
coonee

tors

3
Loosen
lock
nut
unscrew
switch

assembly
and
remove
switch

assembly

4
Install
switch

assembly
as
de

scribed
under
Brake
Pedal
in

Section

BR

INSPECTION

When

plunger
is

pressed
into
switch

assembly
when
brake

pedal
is
reo

8El0
I
Ll

vt
r

I

ER
4JN
l
L

PlOSITlON

RI

j
LASH
n
I

I

12
STOP

9
91

I
JFRe

I
I

II

L
I
III
11

I

I
II
161

I
61616

BE706B

Fig
BE
IS
Turn

signal
and
dimmer
switch

leased

stop
lamp
switch
contacts
are

open
On
the

contrary
contacts
are

closed
with

plunger
projected

DOOR
SWITCH

Door
switch
is
installed
on
both

L
H
and
R
H
front
door

pillars

REMOVAL
AND

INSTALLATION

I
Disconnect

battery

ground
cable

2
To

pull
switch

assembly
out

of

lower

pillar
withdraw
switch
and

wiring
assembly

3

Disconnect
lead
wire

at
cannee

tor

4

Installation
is
in

the
reverse
se

quence
of
removal

INSPECTION

through
door

lamp
or
ohm
Test

continuity

switch

by
using
test

meter

When

plunger
is

pressed
into
switch

assembly
door

switch
contacts
are

open
Contacts
are
closed
when

plunger
is

projected

HAZARD
SWITCH

REMOVAL
AND

INSTALLATION

1
Disconnect

multiple
connector

and
lead
wire
from
instrwnent
harness

wiring

3
terminal
7
terminal

To
flasher
unit

1

terminal

4

terminal

5

terminal

6
terminal
I
TERMINAL
SWITCH

POSITION

OFF
ON

I

lli
ill

I
2

I
5

1
Hazard
flasher
unit

I
4
2
Turn

signal
flasher
unit
BE707B

I
5
Fig
BE
20
Flasher
unit

I
8

I
7

I

REPLACEMENT
Body
Electrical

System

2
Remove

shell

covers

Upper

3
Remove

two
screws

attaching

switch

to
lower
shell
cover
and
remove

switch

4
Install

hazard
switch
in
the
re

verse

sequence
of

removal

INSPECTION

Test

continuity
through
hazard

switch

by
using
test

lamp
or
ohm

meter

ON

BE308

Fig
BE
19
Hazard
switch

BE
11
FLASHER
UNIT

There
are
two
flasher
units
One
is

for
turn

signal
and
the
other
for

hazard

They
are
located

at
both
sides
of

instrument

panel
near

steering
column

They
can
be

distinguished
from
each

other

by
their

shape

The

large
one
is
for

turn

signal
the

smaller
for
hazard
See

Figure
BE

20

I
Disconnect

battery
ground
cable

2
Disconnect
connector
fitted
to

bottom
of
unit

3
Remove
screw

retaining
flasher

unit

4
Installation
is
in
the

reverse
se

quence
of
removal