turn signal bulb DATSUN PICK-UP 1977 Service Manual

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

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

Body
Electrical

System

BULB
SPECIFICATIONS

Item

Wattage

Candlepower

Headlamp
Inner

Outer
37
5W

37
5
S0W

Front
combination

lamp

Turn

signal
and

parking
lamp
23
8W
32
3C

Side
marker

lamp

Front

Rear
8W

4C

8W
4C

Rear

combination
lamp

Turn

signal
lamp
A
B

Tail

lamp
B
C

Stop
lamp
A
B

Back

up
lamp
D
A
23W
32C

B
23j8W

32j3C

C
8W
4C

D
23W

32C

7
SW

6C

License

plate
lamp

Engine
compartment
lamp
6W

Room

lamp
5W

Combination
meter
illurnina

tion
17W
iC
x3

Knob
illumination

lamp
3
4W

2C

Heater

control
illumination

lamp
3
4W

2C

TROUBLEDIAGNOSE
AND
CORRECTIONS

HEADLAMP

Condition

Headlarnps
do
not

light
for

both

high
and
low
beams

High
beam
cannot

be
switched
to
low

beam
or
vice
versa
Probable
cause

Burnt
fuse

Loose
connection
or

open
circuit

Faulty
lighting
switch

Faulty
dimmer
switch

Faulty
light
relay

No

ground

Faulty
dimmer
switch

Faulty
light
relay

BE12
Bulb

SAE
trade
number

4001

4002

1034

67

67

1073

1034

67

1073

89

161

158

158

Corrective
action

Correct
cause
and

replace
fuse

Check

wiring
and
or

repair
connection

Conduct

continuity
test
and

replace
if
neces

sary

Check

light
relay
for

proper
operation
and

replace
if

necessary

Clean
and

tighten
ground
terminal

Conduct

continuity
test
and

replace
if
neces

sary

Check

light
relay
for

proper
operation
and

replace
if

necessary

Condition

Headiamps
dim

Headlamp
in

only
one

side

lights

TURN
SIGNAL
LAMP

Condition

Turn

signals
do

not

operate

Flashing
cycle
is

too
slow

Pilot

lamp
does

not

go
out
or

too
fast

Flashing
cycle
is

irregular
Body
Electrical

System

Probable
cause

Partly
discharged
or

faulty
battery

Faulty
charging
system

Poor

ground
or
loose
connection

Burnt

sealed
beams

Loose

headlamp
connection

Damaged
sealed
beam

Probable
cause

Burnt
fuse

Loose
connection
or

open
circuit

Faulty
flasher
unit

Faulty
turn

signal
switch

Bulbs

having
wattage
other
than

specified

wattage
are
used

Burnt

bulbs

Loose

connection

Inoperative
flasher
unit

Burnt
bulb

Loose

connection

Bulb

having
wattage
other
than

specified

wa

ttage
is
used

TAIL
LAMP
STOP
LAMP
AND
BACK
UP
LAMP

Condition

Both

right
and
left

lamps
do
not

light

Lamp
in

only
one
side

lights
Probable
cause

Burnt
fuse

Inoperative
stop
lamp
switch

Falllty
back

up
lamp
switch

Loose
connection
or

open
circuit

Burnt
bulb

Loose
bulb

BE13
Corrective
action

Measure

specific
gravity
of

electrolyte
and

recharge
or

replace
battery
if

necessary

Measure

voltage
at

headlamp
terminals

If
it
is
less
than
12
8V
check

charging

system
for

proper

operation

Clean
and
or

tighten

Replace

Repair

Replace

Corrective
action

Correct
cause

and

replace

Check

wiring
and
or

repair
connection

Replace

Conduct

continuity
test
and

replace
if

neces

sary

Replace
with

specified
one

Replace

Repair

Replace

Replace

Repair

Replace
with

specified
one

Corrective
action

Correct
cause
and

replace

Conduct

continuity
test
and

replace
if
neces

sary

Conduct

continuity
test
and

replace
if
neces

sary

Check

wiring
and
or

repair
connection

Replace

Repair
lamp
socket

Body
Electrical

System

METERS
AND

GAUGES

COMBINATION
METER

COMBINATION
METER
CIRCUIT

DIAGRAM

REMOVAL
AND

INSTALLATION

SPEEDOMETER

REMOVAL
AND

INSTALLATION

ODOMETER
SWITCH

REMOVAL
AND

INSTALLATION

FUEL
GAUGE
AND

WATER
TEMPERATURE

GAUGE

DESCRIPTION

REMOVAL
AND

INSTALLATION

OIL

PRESSURE
WARNING
LAMP

DESCRIPTION

01
L

PRESSURE
SWITCH

COMBINATION

METER

COMBINATION
METER

CIRCUIT
DIAGRAM

@

BE6828
CONTENTS

BE
14

BE
14

BE
16

BE
16

BE
16

BE
16

8E
16

BE
16

BE
16

BE
16

8E
17

BE
17

BE
17

Turn

signal

indicator

lamp

L
H

OIL

0

BEAM

BE
14
Meter
illumination

lamps

M
T

only

9

9
Turn

sq
nal

indicator

lamp

lL
J
R
H

Tj

O
iJ

I
l

g
r
i
o

I

l8

J
CHARGE

WARNING
LAMP

DESCRIPTION

HAND

BRAKE
WARNING
LAMP

DESCRIPTION

HAND
BRAKE

SWITCH

METER

ILLUMINATION

INDICATOR

AND

WARNING
BULBS

REMOVAL
AND

INSTALLATION

8ULB

SPECIFICATIONS

TROUBLE

DIAGNOSES
AND

CORRECTIONS

SPEEDOMETER

WATER
TEMPERATURE

AND
FUEL

GAUGES

OIL

PRESSURE
AND

CHARGE
WARNING

LAMPS

Voltage

regulator

TEMP

FUEL
CHG

0

BRK

C

I

Speedometer

2
Thermometer

3
Fuel
meter

4
Tachometer

Option

5

Cluster
lid

6

Speedometer
cable

7

Speed
switch

amplifier

Manual
transmission

only
BE
17

BE
17

BE
18

BE
18

8E
18

8E
18

BE
18

BE
18

BE
18

BE
18

BE
19

BE
20

Q
Speed

switch

BE856A

Fig
BE

21
Ci1
Cuit

diagram
of
combination

meter

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