1977 DATSUN PICK-UP ECU

Body
Frame

DOOR
GLASS
AND
REGULATOR

CD

REMOVAL
AND

INSTALLATION

L

Open
door
lower
glass
all
the

way

2
Remove
iflllide
door
handle
es

cutcheon

3
Remove

pull
handle

4

Remove
arm
rest

5
Remove
regulator
handle

6
Remove
door
finish

7
Peel
off
water
seal
screen

8
Work
off

outer
and
inner
weath

erstrips
from
door
being
sure
not
to

scratch
door

paint
during
operation

Use
a
suitable

plain
screwdriver
or

similar
flat
bladed
tool
io

remove
and

place
a

piece
of

rag
between
screw

driver
and
door

panel

BF643
1
Outet

weatherstrip

2
Screwdriver

3
Piece
of

rag

Fig
BF
31

Removing
outer

weather

trip

9

Remove
three
door

glass
bottom

channel

attaching
bolts
Remove
door

glass
by

lifting
it

straight

up
Fig
BF
30
Door

gl
and

regulator

10
On
door

equipped
with
venti

lator

remove
three
bolts

securing
door

glass
bottom
channel
then

let

glass
go

to

the
bottom
of
door

Remove
ventilator
frame

attaching

bolts
and
lift
frame

straight
up
out
of

door
Remove
door

glass
by
lifting
it

straight
up

11

Back
off
the
five

guide
channel

to

regulator
base

attaching
screws

Take
out

regulator
assembly

through

large
access
hole
in
inside
door

panel

DOOR
LOCK

1
Escutcheon

2
Inside

handle

3
Spring

4

Door
lock
knob

5
Knob

grommet

6
Outside
handle

7
Outside
handle
rod
j

f

ffi
I

Fig
BF
32
BF035

Removing
door

glass

12
To
install
reverse
removal

pro

cedure

ADJUSTMENT

I

In
and
out
and
fore
and
aft
ad

justment
can
be
made

by
moving

front

or
rear
sash
and

guide
channel

as

required

The
ease
with
which
window
assem

bly
raises
and
lowers

depends
on
ad

justment
of
rear

lower
sash
Rear

lower
sash
should
be

parallel
with

front
lower
sash

2

Fore
and
aft

adjustment
is

deter

mined

by
position
of

guide
channel

and
front
lower
sash

Moving
front

lower
sash
backward
reduces

play
in

window

assembly

j

CID

@

8
Nylon
nut

9

Locking
plate
ring

10
LOcking

plate

11
Door

lock
cylinder

12

Door
lock

13

Stopper

BF

14
BF410A

Fig
BF
33
Door
lock
mechonillm

Body
Frame

INTERIOR
TRIM

AND
CENTER
CONSOLE

HEADLINING

DESCRIPTION

The

headlining
assembly
is
of
a

suspension
type
which
is
held
in

place

ct

I

2

3

4

5

6

7

8

9

REMOVAL

1
Remove
two
inside
rearview
mir

ror

attaching
screws
and
detach
rear

view
mirror

2
Remove
three
sun
visor

attaching

screws
and
detach
sun
visor

3

Remove
two
assist

rail

attaching

screws
and

detach
assist

rail

4

Remove
room

lamp

5

Open
doors
and
remove

body
side

welts
on
each
side

6
Remove
windshield

glass
and

weatherstrip

7

Remove
back
window
and
weath

erstrip

8
Remove

garnish
securing
the
end

of

headlining
to
rear

pillar
by
listing
wires

The

design
is

quite

similar
to
that
used
in
a

passenger
car

A

BF648A

Fig
BF
43
Headlining

CD
r
h
i

r

J

I

I

I

II

CID

BF661

1

Headlining
cloth
4

Door

glass

2

Clip

5

Back
window

glass

3
Garnish

Fig
BF
44

Removing
gami8h

9
Detach

all

cemented

edges
of

headlining
from

flanged
portion
of

roof

rail

10

Disengage

listing
wires
from
roof

rail

and
detach

headlining

INSTALLATION

I

Apply
adhesive
cement
to
the

outer
surface
of

flange
and

headlining

attaching
surface

evenly

8F
18
2

Install

listing
wires
in

place
on

roof
rail

3

First
attach
front

headlining
to

the

flanged
portion
of
roof
rail

Secondly
attach
the
rear

edges
of

headlining
in

place
while

pulling
the

headlining
material
to
avoid
wrinkles

4

Attach
the

right
and
left

edges
of

headlining
material
to

the

flanged
por

tions

using
care
to
avoid
wrinkles

5
Cut
excess

headlining
material
ex

cept
for
that
at
the

upper
areas
of

front
center
and
rear

pillars
not

covered

by
body
side
welt
The

edges

of

headlining
ma
terial
at
these

areas

should
be
so
cut
that
it
can
be
folded

properly
in

place

6
Install

garnish
on
the
extreme
end

of

headlining
at

rear

pillar

7
Drill
a

hole
in

headlining
where

room

lamp
is
located

Install
room

lamp

8

Install

body
side
welts

9
Install
windshield

glass

10
Install
back
window

glass

11

Install
assist

rail
sun
visor
and

inside
rearview
mirror

BACK
TRIM
AND

BACK

INSIDE

FINISHER

DELUXE
CAB

REMOVAL
AND

INSTALLATION

Back
trim

I
Move
floor

carpet
aside

2
Remove

four
bolts

attaching
back

trim

to
floor

3
Remove
five
trim

clips
and
detach

back
trim

4
Installation
is
the
reverse
order
of

removal

Back
Inside
finisher

I
Remove
seat
belt
retractor

2
Remove
five
trim

clips
and
detach

back

inside
fmisher

3
Installation
is
the
reverse
order
of

removal

Body
Frame

Removal
and
installation

assembly

2
To
install

seat
reverse
above
re

moval

procedure
1
Remove

four
bolts

retaining
seat

slide

assembly
to

floor
take

out
seat

SEPARATE
SEAT

1

Head
re5traint

2
Seat
assembly

3

Reclining
device

4

Seat
slide
outer

5
eat
slide
inner
s

J

j

BF0358

Fig
BF

49

Separate
seat

Removal
and
installation

I

Remove
two

nuts

attaching
front

of
seat
slide
to
floor

2

Remove
two
bolts

attaching
rear

of

seat
slide
to
floor
3
Then

remove
seat
with

seat
slides

from
the

vehicle

4

Installation
is
the
reverse
order
of

removal

SEAT
BELT

1
Inner
belt

2

Tongue
stopper

3

Emergency
locking
retractor

4

Outer
anchor

plate

5

Lap
shoulder
belt

6
Shoulder

through
anchor
BF036B

Fig
BF
50

Seat
belt

BF

20
DESCRIPTION

The
seat
belt
is
a
three

point
type

consisting
essentiaily
of
a

lap
shoulder

belt
and
an
inner

lap
belt

The

lap
shoulder
belt

is
fitted
with

an

emergency
locking
retractor
which

senses
the

speed
at
which
the

webbing

is

being
pulled
and

the
deceleration
of

the
vehicle

The
inner

lap
belt
has
a
buckle
The

buckle
of
the
driver

s
seat
belt
includes

a
switch
which
functions
as
a
seat
belt

warning
device

CAlJI10NS

a
In

conformity
with
M
V

S
S
No

302
be
sure
to

remove
the
thin

polyethylene
covers
from
seat

belts

at
the
time
of

I
Pre
delivery
service

2
Parts

replacement

b
If

the
vehicle
has

overturned
or

been
in
a
collision

replace
the

entire

belt

assembly
regardless
of

nature
of
accident

c

If
the
condition

of

any

component

of
a

seat
belt
is

questionable
have

entire
belt

assembly
replaced
rather

than

attempting
to

repair
seat
belt

d
If

webbing
is
cut

frayed
or
dam

aged

replace
belt

assembly

e
Do
not

spill
drinks
oil
etc

on

inner

lap
belt
buckle
Never
oil

tongue
and
buckle

f

Use

only
a

genuine
Nissan
seat
belt

assembly

REMOVAL
AND

INSTAUATION

I

Disconnect

battery
ground
cable

2
Disconnect
buckle
switch
harness

at
connector
under
seat

3
Loosen

bolt

retaining
inner

lap

belt
and
remove
inner

lap
belt

4

Remove
bolt

securing
emergency

locking
retractor

5

Remove
shoulder
anchor
bolt

and
remove

lap
shoulder
belt
assem

bly

6
Installation
is

the
reverse
order
of

removal

Tightening
torque

Anchor
bolts

2
5
to
3
0

kg
m

18
to
22
ft
lb

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

Body
Electrical

System

Horn
switch

The
horn
switch
is

integral
with

the

turn

signal
and
dimmer
switch
as

sembly
Remove
switch

assembly
as

outlined
in
Turn

Signal
and
Dimmer

Switch

IGNITION
SWITCH
BE861A

Fig
BE

3
I

Removing
ignition
switch

REMOVAL
AND

INSTALLATION

I
Disconnect

battery
ground
cable

from

battery

2
Unscrew
and
remove
escutcheon

from
the
front
of

ignition
switch

3
Withdraw

ignition
switch
and

wiring
assembly
with

spacer
from

shell
cover
as
shown
in

Figure
BE
3

4

Disconnect
wiring
connector

from
the
back
of

ignition
switch

5

Replace
ignition
switch
with
a

new
one

6
Connect

ignition
switch
to

wiring

connector

7

Position

ignition
switch
to
shell

cover

opening
install
and

tighten

escutcheon
and
secure
ignition
switch

to
shell
cover
R
terminal

1G
terminal

ST
terminal

B
terminal

8E

22
1

Voltage

regulator

2
Horn

relay

3

Headlamp
relay

4

Ignition
relay
California

only

5

Auto
choke
heater

relay

6

Compressor
relay

Au
conditioner

equipped
model

7

Floor
sensor

relay
California

only

8
Inhibitor

relay
Automatic

tran5mission

only

INSPECTION
BE683B

Fig
BE
30

ContInuity
test

Test

continuity

through
ignition

switch

by
using
test

lamp
or
ohm

meter

C

A
terminal
TERMINAL
0

F

F

B

IG

ST

A

R
KEY

FOSITlON

t

1

o

j
u

u

I

I
A

C

C

Fig
BE

32

Ignition
witch
BE6848

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

HEATER
UNIT
ASSEMBLY

Removal

L
Disconnect

battery
ground
cable

2

Drain

engine
coolant

3

Remove
defroster
hoses

4

Remove
three

cable

retaining

clips
and
disconnect
control
cables

from
valves
and
water

cock

5

Disconnect
two

fan
motor
lead

wires
from
each
connector

6
Disconnect
two
resistor

lead
wires

from
each
connector

7

Disconnect
water
hoses
from
core

and
water
cock

8

Remove
three

heater
housing

mounting
bolts
and

dismount
heater

unit
from
vehicle

Installation

1

Position
heater
unit
under
instru

ment

panel
and
install
three
heater

unit

securing
bolts

2

Install
water
hoses

3
Position
heater

control
cables
to

room
valve
air
intake
valve
and
water

cock

4

Adjust
control
cable

length
for

proper
operation
as

outlined
in

Adjust

ment

5
Connect
fan
motor
wires
and

resistance
wires

to
each
connector

plug

6

Install
defroster
hoses

7

Connect

battery
ground
cable

8
Fill

cooling

systeIT

9
Run

engine
at
2
000

rpm
with

AIR

lever
in

the
HOT

position

Make
sure
that

engine
coolant
is
fIlled

up
to
correct
level

HEATER
CORE

Removal
and
installation

L

Drain

engine
coolant

2
Remove
defroster
hoses

3
Disconnect
water
hoses
from
inlet

and
outlet

pipes
of
heater
core

4

Remove
four

clips
and
front

cover
Body
Electrical

System

BE869A

Fig
BE
48

Removing
front
cov
r

S

Withdraw
heater
core
from
heater

housing

BE870A

Fig
BE
49

Removing
heater
core

6

Install
heater
core
in

the
reverse

sequence
of

removal

FAN
MOTOR

Removal
and
Installation

L
Dismount
heater
unit

assembly

from
vehicle

as
outlined
in
Removal
of

Heater
Unit
Assembly

2
Remove
nine

spring
clips
and

disassemble
heater

housing

3
Remove
fan
from
fan
motor

4
Remove
fan

motor

retaining

screws
and
fan
motor

S
Assemble
heater

housing
and
in

stall
heater
unit

to
vehicle
in
the

reverse

sequence
of
removal

as
out

lined
in

Installation
of

Heater
Unit

Assembly

I

CONTROL
ASSEMBLY

Removal
and
Installation

I
Remove
three
cable

retaining

clips
and
disconnect
control
cables

from
valves
and
cock

BE
29
2

Disconnect
three
lead
wires

from

each
connector

plug

3

Remove
radio
bezel
from
the

front
of
radio

following
instructions

in

steps
I

to
3
in

Removal
of
Radio

4

Remove
heater
control
knobs
and

heater

bezel

5

Remove
two

retaining
bolts
and

heater
control

assembly

6
Install
control

assembly
in
the

reverse

sequence
of

removal
When

connecting
control
cables

to
valves
and

cock

adjust
control
cable

length
as

outlined
in

Adjustment

ADJUSTMENT

AIR
lever

L
Move
AIR
lever
to
the
DEF

position

2

Open
air
intake

valve
and

connect

control

cable
to
air
intake
valve

3

Clip
control
cable
with
cable

re

taining
clip

Fig
BE
50
A
iT
intake
valve

4
Pull
room
valve

upward
and
con

nect
control
cable
to
room
valve

5

Clip
control
cable
with

cable
re

taining
clip

BE871A

Fig
BE
51

Room
valve

SEAT
BELT

WARNING
SYSTEM

DESCRIPTION

Except
Canada

When

the

ignition
switch
is
turned

to
the
ON

position
the

warning

lamp
comes
on

and
remains
on
for
4

to
8

seconds
The

warning
buzzer

sounds
for
4

to
8
seconds
intermittent

ly
if
the
driver
s
seat
belt
is

not

fastened

properly

The
seat
belt

warning
system
con

sists
of
a
driver
s
belt
switch
a

warning

buzzer
a

warning
lamp
a
timer
unit

and
an

ignition
switch

For
Canada

When
the

ignition
switch
is
turned
Body
Electrical

System

to
the

ON

position
the

warning

lamp
comes
on
and
the

warning
buz

zer
sounds
if
the
driver

s
seat
belt
is

not

fastened

properly

The
seat
belt

warning
system
con

sists
of

a
driver
s

belt
switch

a

warning

buzzer

a

warning
lamp
and
an

igni

tion
switch

REMOVAL
AND

INSTALLATION

Ignition
switch

Refer
to

page
BE
22

for
Removal

and
Installation

Timer
unit

Timer
unit
is
fIXed

on
a
reinforce

ment
behind

glove
box

BE688B

I
Disconnect

battery
ground
cable

2
Remove

glove
box

3
Disconnect
timer
unit

connector

4
Remove
two
screws

retaining

timer
unit
on
reinforcement
Timer

unit
can
then
be
taken

out

S

Installation
is
in
the
reverse
se

quence
of
removal

Warning
buzzer

Warning
buzzer
is
fIxed

on
a
re

inforcement
behind

glove
box

Refer
to
the

preceding
timer
unit

for
Removal
and
Installation
BE282B

Fig
BE
54
Timer
unit

BE967A

Fig
BE
55
Warning
buzzer

Driver
s
seat
belt
switch

I
Remove
seat
belt

ecuring
bolt

2
Disconnect
belt
switch
lead
wire

at
connector

3

Seat
belt
can
then
be
taken
out

4

Installation
is
in
the

reverse
se

quence
ofremoval

BE
31
Warning
lamp
body

Warning

lamp
is

located
on
instru

ment

panel

I
Remove

cluster
lid

2
Disconnect

lead
wire

at
connee

tor

3
Remove

two
screws

retaining

lamp
body

4

Installation
is
in
the

reverse
se

quence
of
removal

WARNING
LAMP
BULB

REPLACEMENT

I
Remove
cluster

lid

2
Twist

warning
lamp
socket

Socket
with
bulb

can
then
be
taken

out

3

Pick

up
bulb

from
socket

4
Install
new
bulb
in
the
reverse

sequence
of
removal

Bulb

wattage

Seat
belt

warning
lamp
I
7W

INSPECTION

Warning
buzzer

Apply
12V

direct
current
between

CD
and

@
and
check
whether
buzzer

sounds
or
not

The
buzzer

must
sound
when

CD

and

@
are
connected
to

power

circuit
See

Figure
BE
55
for

warning

buzzer

Note
Make

sure
that

negative

terminal
of

power
circuit
is

always

connected

to

@
terminal

Timer
unit

Turn

ignition
key
to
the

ON

position
The

voltage
between

@
and

ground
must
be
12V
for
4

to
8

seconds
and
then

go
out
See

Figures

BE
54
and
BE
56

Belt
switch

Test

continuity
between
two
lead

wires
from
seat
belt
switch
with
ohm

meter
or
test

lamp