Fiat X 1/9 1978 - Fuse M;N Blows Repeatedly

ELECTRICAL
SYSTEM
TROUBLESHOOTING
Page
356
FUSES
FUSE
M
BLOWS
REPEATEDLY
1.a.
Disconnect
greenl’white
wire
from
fuse
M.
Connect
red
meter
lead
to
wire.
Connect
black
lead
to
ground.
b.
Disconnect
connector
C19.
If
meter
reads
infinity,
go
to
step
2.
NOTE
Connector
C19
is
a
4
pin
connector.
It
is
in
compartment
for
left
headlight
motor.
c.
If
meter
does
not
read
infinity,
disconnect
connector
C20.
If
meter
reads
infinity,
go
to
step
2.
lf
meter
does
not
read
infinity,
repair
green/white
wire
from
fuse
box
to
connector
C19
and
C20.
NOTE
Connector
C20
is
a
4
pin
connector.
It
is
in
compartment
for
right
headlight
motor.
2.a.
Connect
red
meter
lead
to
gray/black
wire
in
connector
for
headlight
motor.
Connect
black
lead
to
ground.
b.
If
meter
reads
25
ohms
or
more,
check
wires
to
headlight
motor.
If
wires
are
good,
replace
motor.
c.
If
meter
reads
less
than
25
ohms,
disconnect
gray/black
wire
from
terminal
35
of
relay.
d.
If
meter
reads
infinity,
replace
relay.
If
meter
does
not
read
infinity,
repair
gray/black
wire
from
connector
to
relay.
FUSE
N
BLOWS
REPEATEDLY
1.a.
Discmnect
gray/yellow
wire
from
fuse
N.
Connect
red
meter
lead
to
wire.
Connect
black
lead
to
ground.
b.
Disconnect
connector
C19.
If
meter
reads
infinity,
go
to
step
2.
NOTE
Connector
C19
is
a
4
pin
connector.
It
is
in
compartment
for
left
headlight
motor.
c.
If
meter
does
not
read
infinity,
disconnect
connector
C20.
lf
meter
reads
infinity,
go
to
step
2.
If
meter
does
not
read
infinity,
repair
gray/Yellow
wire
from
fuse
box
to
connector
C19
and
C20.
NOTE
Connector
C20
is
a
4
pin
connector.
It
is
in
compartment
for
right
headlight
motor.
2.a.
Connect
red
meter
lead
to
gray/black
lead
in
connector
for
headlight
motor.
Connect
black
lead
to
ground.
b.
If
meter
reads
25
ohms
or
more,
check
wires
to
headlight
motor.
If
wires
are
good,
replace
motor.
c.
If
meter
reads
less
than
25
ohms,
disconnect
gray/black
wire
from
terminal
85
of
relay.
d.
If
meter
reads
infinity,
replace
relay.
If
meter
does
not
read
infinity,
repair
gray/black
wire
from
connector
to
relay.
GREEN/WHITE
WIRE
RED
LEAD
ll
BLACK
i"\
LEAD
5:151:11.
[1
war“
Fifi-"O”
MLDHH
".
___.FUSE
M
TO
GROUND
GRAY/BLACK
WIRE
3
.
N
'RED
LEAD
BLACK
LEAD
‘1",
_
“j
I
r
TO
GROUND
BLACK
GRAY/YELLOW
LEAD
WIRE
RED
LEAD
TO
GROUND
"MEJEEMDJIIII
n
l'll‘lni'l
nn
0
Hnn'nnnnnin;
'
/
/
_._FUSE
N
...
I
GRAY/BLACK
WIRE
R
.
-'
i
\i‘
ENI'FIED
LEAD
BLACK
LEAD
ii
_
.9
r
l
TO
GROUND