Datsun C210 series Manual page 519

Air
Conditionil1g
BLOWER MOTOR DIAGNOSES
Fuse blown
Locate short circuited spol and
repair
or
replace faulty
parts
Blower
runs
Check
ground
circuit connection
and lead
wire connection
When
no
problem
is
found
replace
blower
switch
Blower
runs
Check
connection
of
resistor
When
no
problem
is found
replace
resistor
I
Light
ON
Check lead wire connection
When
no
problem
is
found
replace
blower
motor
L
LighION
I
Check lead
w1
e
connection and when
no
problem
is
fClUnd
replace relay
Blower
motor
inoperative
Check fuse
AC48
Fuse OK
I
Ground
one
of lead
wires
blue green
I
speed blue red 2
speed
blue white
3 s peed
leading
to
blower
switch
Blower does
not
run
t
Ground blue white
wire
of blower
motor
Blower does
not
run
I
I
Connect 12 volt
test light to
blue wire
leading
to
blower
motor
Light
OFF
Connect 12 volt
test light to
white wire
leading to ignition relay
Light
OFF
I
Check
wire
between relay and fusible link
Check fusible link holder
too
Repair
or
replace damaged
parts
if
any