1979 DATSUN 210 relay

m
c
n
to
l
l

I
g
iF
0
1
To
side
marker
lamp
L
H

2
To
headlamp
L
H

3
To
horn
L
H

4
To
front
combination
lamp
L
H

5
To
cooler
co
pressor
Air
Con
models

6
To
oil
pressure
switch

7
To
condenser

8
To
horn
R
H

9
To
front
combination
la
t11p
R
H

10
To
side
marker
lamp
R
H

11
To
headlamp
R
H

12
To
body
earth

13
To
fusible
link

14
To
inhibitor
relay
AfT
model

15
To
aut6
choke
relay

16
To
ignition
coil

17
To
condenser

18
To
washer
motor

19
To
engine
harness
No
2
@

20
To
alternator

21
To
starting
motor

22
To
throttle
opener
solenoid
Except
FU
models

23
To
fuel
cut
solenoid
Except
FU
models

24
To
throttle
switch
FU
models

25
To
fuel
cut
solenoid
FU
models

26
To
auto
choke

27
To
VC
cut
solenoid
M
T
and
Calif
AfT
models

28
To
distributor

29
To
thermal
transmitter

30
To
body
harness

31
To
low
pressure
switcn
Air
Con
models

32
To
rear
window
washer
motor

33
To
FICO
solenoid
Air
Con
models

34
To
room
lamp
harness

35
To
cooling
unit
Air
C
on
models

36
To
heater
motor
37
To
engine
revolution
switch
FU
models

38
To
rear
wiper
switch

39
To
wiper
motor

40
To
brake
level
switch

41
To
belt
timer

42
To
horn
relay

43
To
stop
lamp
switch

44
To
kickdown
switch
AfT
model

45
To
hazard
flasher
unit

46
To
turn
signal
flasher
unit

47
To
ignition
switch

48
To
steering
lock

49
To
wiper
switch

50
To
turn
signal
and
hC
rn
switch

51
To
lighting
switch

5i
To
hazard
switch

53
To
belt
switch

54
To
door
switch
L
H

55
To
hand
brake
switch

56
To
automatic
transmission
control
indicator

AfT
models

57
To
instrument
harness

58
To
check
connector
I
0
i
a

z
Z
G
z

tIl
tIl
a
Z
Il
I
to

o
Co
m
16

n
n
OJ
1
3

BodyElecti
ical
System

LOCATiON
OF
ELECTRICAL
UNIT

@

Q
J
r

J

D

t

Inhibitor
relay

AfT

2
Auto
chok
e

relay

3
Buzzer

4

Door
switch
RlI

5

Turn
signal
flasher

6
Hazard
flasher
7
Door
switch
L
H

8
Horn
relaY

9

Seat
belt
timer
unit

10

Stop
lamp
switch

11
Kickdown
switch
Am

BEl17D

Fig
BE
8
Locotiono
Ekctricol
Unit

BE

S

Body
Electrical

System

ELECTRICAL
UNIT
OF
SIGNAL
SYSTEM

CAUTION

Before

startill1l
to
work
on

any

part
of

electrical

system
disconnect

battery

ground
cable

TURN
SIGNAL

SWITCH

Refer
to

combination
switch

HORN
RELAY

REMOVAL
AND

INSTALLATION

I

I

BE123D

Fig
BE
16

ReplOving
om

ReIDy

INSPECTION

1

i
L
l

I
F
I

L

t
r
j

CV
CD

@

pi

101

D
C
12V

BE124D

Fig
BE
17
Horn

ReIDy
HAZARD
SWITCH

REMOVAL
AND

INSTAUATION

I

Disconnect

battery
ground
cable

2
Remove

upper
steering
column

cover

3

Disconnect
harness
connector

4
Remove

ret

ining
screw

5
Install
hazard

warning
lamp

switch
in
the

rev
erse
order
of
removal

i

1
4

2
5

V
lfI

OMI

g
1

t

5
01

BE306C

Fig
BE

IS
Hazard
Switch

STOP
LAMP

SWITCH

REMOVAL
AND

INSTALLATION

I

Disoonnect

battery

ground
cable

2
Disconnect
harness
connectors

3

Loosen
lock

nut
Switch

assembly

can
then
be
taken
out
by

rotating

switch

4

Install
in

the
reverse
order
of

removal

BE
12
BE68QC

Fig
BE
19

Stop
Lamp
Switch

INSPECTION

Test

oontinuity
through

stop
lamp

switch
with
a
test

lamp
or
ohmmeter

When

plunger
is

pressed
into
switch

assembly
stop
lamp
switch
contacts

are

open
Contacts
are
closed
when

plunger
is

projected

BACK
UP
LAMP

SWITCH

Back

up
lamp
switch
is

installed
on

transmission

INSPECTION

When
transmission
lever
is

in
R

position
there
should
be

continuity

between

two
terminals

DOOR
SWITCH

Door
switch
is
installed
on
lower

center

pillar

REMOVAL
AND

INSTAUATION

I
Disconnect

battery
ground
cable

2
To

pull
switch
assembly
out
of

lower

pillar
withdraw
switch
and

wiring
assembly

3
Disconnect
lead
wire
at
con

nector

Body
Electrical

System

Incorrect

Overlapped
area
Hea

t
wire
STARTING
SYSTEM

For
automatic

transmission
models

REPLACEMENT
AND

INSPECTION
Break

points

Inhibitor
switch

Refer
to
Section
AT

BE542

Inhibitor

relay

See

Fig
BE
B

Fig
BE
55
Incorrect
and
Correct

Deposition
of
Silver
Composition

HEATER

CAUTION

Before

starting
to
work
on

any
part
of

electrical

system
disconnect

battery

ground
cable

DESCRIPTION
Air
lever

1

Off

CnID

p
lever
lEU
B
I
HUT

HDI
DEI

R
C
HUT

I
III

OFF
1
2
3

I

Fan

switch
lev
Outside
air
drawn
in

through
the

cowl

top
grille
is

directed

through
the

air

intake
case
to
the
heater
unit

by

the

blower
The
heater
unit

includes

an
air
mix

door
which
controls
the
air

temperature
and
a
ventilation
door

and
floor
door
which

change
the
distri

bution
of

air
flow
The
air

intake
door

inside
the
air
intake
case
shuts
out

the

outside
air
when
the
heater
is
off

The
heater
controls

consisting
of

three
levers
are
located
in

the
middle

portion
of
the
instrument

panel
They

are
the

AIR
lever
which
selects
the
air

inlet
and
outlet
the
TEMP
lever
which

controls
the

temperature
and
the

FAN

switch
lever
which

regulates
air
flow

with
the

blower

Side
defrosters
are

provided
on

models
bound
for

Europe
Heated
air

is

discharged
from
the
side
outlets
to

remove
side
window
frost
and
cloudi

ness
in

frigid
weather

for
better
side

view
Inside
air
To
defroster

fr

1

rf
To
side

r
2

t
defroster

1

U
C
D

i

LJ

t
@

6
5
Outside
air

1
Air
mix
door

2
Ventilation
door

3
Heater
core

4
Floor
door

5
Water
cock

6
Blower

7

Air
intake
door
To

Ooor

BE137D

Fig
BE
56
Heater
Control

BE
23

IJi

Ir
c

r

I

BE192C

Fig
BE
66

Removing
Water
Cock

ADJUSTING
HEATER

CONTROL

AIR
MIX
DOOR

I

Set
TEMP
lever
at
maximum

HOT

position

2

Push
air
mix

door
lever
in

direc

tion
of

arrow
and

press

temperature

control
cable
outer
case
in
direction
of

TEMP
lever
While

doing
so
secure

outer
case
with

clip

BE252C

Fig
BE
67

Adjusting
Air
Mix
Door

Note
Make
sure
that
water
cock
is

fully
closed
when
TEMP
lever
is
in

maxilnum
COLD

position
Body
Electrical

System

VENTILATION
DOOR

I
Set
AIR

lever
at

RECIRC

posi

tion

2
Push
ventilation
door

relay
lever

in

direction
of
arrow

to
shut
out
air

flow
to
center
outlet
and

press
venti

lation
door
control
rod
into
relay
lever

clamp

BE253C

Fig
BE
68

Adjusting
Ventilation

Door

Note
Make
sure
that

ventilation
door

is

fully

open
when
AIR

lever
is
in

VENT

position

AIR
INTAKE
DOOR

Set
AIR
lever
at

OFF

position

2
Push
air
intake
door

lever
in

direction
of
arrow
to
shut

out
outside

air
flow
and

press
air
intake
door

control
cable
outer
case
in
direction
of

AIR
lever

While

doing
so
secure
outer

case
with

clip

BE255C

Fig
BE
69

Adjusting
Air
Intake

Door

BE

27
Note
Make

sure
that
air
intake

door

is

fully
open
outside
air
can

flow

into

air
intake
case
when
AIR
lever

is
in
VENT

position

FLOOR
DOOR

Set
AIR
lever
at

OFF

position

2

Push
floor
door
lever
in
direction

of

arrow
to
shut
out
air
flow

to
floor

and
defroster
and

press
floor
door

control
cable
outer
case
in
direction
of

AIR

lever
While

doing
so
secure
outer

case
with

clip

BE256C

Fig
BE
70

Adjusting
Floor
Door

Note
Make

sure
that
floor
door
is

fully

open
air
flows

to
floor
and

defroster
when
AIR
lever
is
in

HEAT

position

DISASSEMBLY
AND

ASSEMBLY
OF

HEATER
UNIT

Remove

heater
uni
t

2
Disconnect
heater
core
inlet
and

outlet
hoses

by

loosening
hose

clamps

3
Remove

clips
securing
front
and

rear
heater
cases
and

separate
them

4

Take
out
heater
core

5
Assemble
heater
unit
in
the

re

verse
order
of
removal

Body
Electdcal

System

INSPECTION

Check
the

following
items

if
blower

motor
fails
to
rotate

FUSE

To

check
for
burned
out
fuse
use

the

same

procedure
as
that
for
ordina

ry
fuses

with
a
circuit
tester
or

test

lamp

BLOWER
MOTOR

POWER

SUPPLY

Disconnect
blower
motor
harness

to
connect
main
harness

2

Connect
one
test

lamp
lead
wire
i

I
Heater
case

as
mbly

2
Heater

cote

BE193C

Fig
BE
71
Heater
Unit

to

main

harness
for
blower

motor
and

the
other
to

ground

3

Turn

ignition
switch
to
ACC

position
test

lamp
should

go
on

BLOWER
MOTOR

1

Disconnect
blower

motor
harness

to
connect
fan

switch
and

connect
the

harness
to

ground

2
Turn

ignition
switch
to
ACC

position
Blower

motor
should
rotate

FAN
SWITCH

Test

continuity
through
fan
switch

with

a
test

lamp
or

ohmmeter

BE
2B
OFF

1
2
3

I

1
0

01

2

I

3
0

I

4

01

BE766C

Fig
BE

72
Fan
Switch

RESISTOR

TItere

should
exist

continuity
be

tween
terminals
of
resistors

althouBh

values
of
resistors

are
different

HEATER
RELAY

For

heavy
duty
type

I
There

should
be

continuity
be

tween
terminals

D
and

@
but

not

between

@
and

@

2
There
should
be

continuity
be

tween
terminals

@
and

@
when

supplying
OC
12
volt

across
terminals

D
and@

I

@

I

I

j

i

i

@

fc

4@

j

I
V

AC197A

Fig
BE
73
Heater

Relay

m
ii
I
ll
i
f
r
3
0
tl
i

a
iO

3
o
J
r
L

8
ffi

12V

BATTERY
I
STARTING
MOTOR
I

I

G

0
0
9

@@
@@
L
J
W
MAIN
RELAY

AIR
CONDITIONER

w
ALTERNATOR

SAND
B
TERMINALS

HEADLAMP

FUSE
BLOCK
I

WR
1
IGNITION
SWITCH

R
1

Note
@
i
W
Californta
models

Non
alifornt8
models
for
U
S
A

Non
CaliforOlB
FU
model

Canada
models
II
II
n
I
a
n
e
xI

ltZ
O
C

It
10
II
I
l

C
m
xl

0
l
OJ

3
0

n
CJ

II
m

al
CD

Z
0
2

a
t
CIl

xI

I
0
c
l

OJ
3

m

2
l
C
Z

o
CJ
m

CJ

cIo

CD
m
t
tl
3

Cl
4
Ii
ii
C
l
I
i

I
ll
g
toom
a

ll
CALIFORNIA
ANO

BATTERY
FU
MOOELS

R
G
ff
w

G
M
wr

N
Q
WR

ALTERNATOR
ANO
IC
NON
cALIFOR
IA

VOLTAGE
REGULATOR
ANO
CANAOA
MO
S
I

fh
WR

B
i
W

i
C
@
J
W

l
9
i
j
@
Q
B

LB
OIL
PRESSURE

SWITCH

0
I
I
l
lOCI
OfflACC
OH
SI
Ys
j

D
01
mQ
IS
i

I
l

I
s
II

10
J
J

SWITCH

IGNITION
iji
BY

wr

1
I
1

IW

BRAKE
FLUIO
LEVEL
SWITCH
Ot
o
BJ

JO
0
Y
l

I
AUTO
cHOKE
RELAY

V
I

r
I

MAIN
HARNESS

FUSE
BLOCK

0
0
lOA

cr
L

lOA

cr
G

1
r
L
BL
HANO
BRAKE

SWITCH

G
J
i

INSTRUMENT
HARN
ESS

fG
YG

10
OMB
N
AT
qN
ETER

o
BRAKE

0
WARNING
LAMP

100
G
O

00
3

YB
f

G

WR
J
I
0

1
Fo
o

e
i

1
z

YB
OIL
PRESSURE

WARNING
LAMP
J

lI
a

Ill
z

11
1
III
Z
G

Ill
11
1
Ut
0

iUt
Ill
alii
11
1
I

a
i
l
i
Ill
Z
i
a
X
OJ

o
Cl
m
CD
o
CIl
l
3