1993 NISSAN SERENA Service Repair Manual

CHARGING
SYSTEM -
Alternator -
Stator Check
To test the stator
or diode, separate
them by unsoldering
the
connecting wires.
CAUTION:
Use only
as much heat
as required
to melt solder. Otherwise,
diodes will
be damaged
by excessive heat.
1 .
Continuity test
o No
continuity... Replace stator.
2. Ground test
o Continuity
exists... Replace stator.
MAIN DIODES
r Use
an ohmmeter
to check
condition of
diodes as indicated
in chart
below.
o lf
any
of the test results
is not satisfactory,
replace diode
assembly.
Ohmmeter probes
Continuity
Positive O
Negative
O
Positive diode plale
Diode terminals
Yes
Diode lerminals Positive diode plate
No
Negalive diode plate
Oiode terminals
No
Oiode terminals
Negative
diode plate
Yes
EL-34

CHARGING
SYSTEM -
Altemator -
Crolin .nia|| ,Dod.l
Brurh litt
rvira Stator
Check (Gont'd)
SUB-DIODES
o Attach
ohmmeter's orobe to
€ach end of diode to check for
continuity.
o Continuity
is N.G. ... Replace diode
assembly.
Assembly
Carefully observe the following instructions.
o When
soldering each
stator coil lead wire
to diode assem-
bly terminal, carry
oul lhe operation
as fast
as possible.
REAR COVER INSTALLATION
1. Before installing front
cover with pulley
and rotor with rear
cover, push
brush up with lingers
and retain
brush by
inserting brush lift wire
into brush lift
hole lrom outside.
2. After installing front
and rear
sides of
alternator, pull
out
brush lift wire.
EL€5

CHARGING
SYSTEM -
Alternator -
Service Data
and Specifications (S.D.S.)
ALTERNATOR
Type LR190-719
1R180-735I 120.335.000
HITACHI BOSCH
Engine SR2ODEGAl6DE LD20rl
Nomina rating
V-A12-90 12 -
80 12-90
Ground polarity
Negalrve
l\,4inimum revolution
under no-load
(When 13 5 volts
is
applred) rpm 10500
Hot output current A./rpm234300
63/2500
87/5000 2311300
63/2500
77l5000 16.5/1300
68.5/2500 B3/5000
Regulated oulpul vollage
V 14.114.7
Minimum length ot brush mm (in)
6 0 (0
236) t
010.276) 10
0
{0.39)
Brush spring pressure
N (9,
oz) 1.000
3.432
(102 350,
3.60 -
12.34) 1.863
3.040
(1S0 -
310,
6 70 -
10.93) 1.9
(194,
6 84)
Slip nng
minimum
outer
orameler mm (1n) 26.0
(1 024) 30
6 (1.20s)
1s.3 (0
602)
E1.36

COMBINATION
SWITCH
Combination Switch/Check
REAR WIPER
AND WASHER
-wrpEa
TURN
a; --r
Lf o"fr
WASH
& WIPE
OFF
tINT
t LO
I Ht /
u
e 1ST
^ t\
OFF ,
LIGHT FNONT WIPER
AND WASHEF
FRONT WIPER AND
WASHER SWITCH a]
I ii
,6iGT,
.td
tq-Tfll
REAR WIPER AND
WASHER SWITCH til
l-l
l, L6le L,rtr I
Lrghtrng and
rurn srgnal
HORN SWITCH
TURN
SIGNAL
swtTcH
NmNn
llo ol
f2TdTm
ETT r0l
I
l-1
tGt
INTERMITTENT
wlPEF VOLUME in,A
ll
tl { \\1t F
-r- // L
\-:=/
;*-a o a-Lj
PER
OFF
I NT
I]I GH WIPE
OFFWIPE
LIGHTING SWITCH
EL-37

COMBINATION
SWTCH
SEL39OL Replacement
o Each
switch can
be replaced
without removing combination
switch base.
r To
remove
combination switch base, remove
base anach-
ing screw
and turn after pushing
on rt.
EL.38

HEADLAMP
-
Without Daytime Light
System and Dim-dip
Lamp System -
ttf
ffi
T.-l
m
G
= ffii
ff-l
E
L Wiring
Diagram
I /-:\
qtrLdl
t=
t-:J!.ll= rT_-
m q4+
L
[-/
z
=
o
ztx
.o11' A
@E
/-,
-
lEl z
aolr, ?
a
al
6i rA r-l 6\
!-rtrr"" tP
q+
1+ +
rf rJl
" --1-tf- '
--.1-t+.
9( t.A.r ) g(
ur )
; \-r-{-/
/ ;
\ll,
,/
3 v
d '\-,--l
fiff II
EL.39

HEADLAMP
-
Daytime Light System -
Operation
After starting the engine with
lhe lighting
switch in the "OFF"
position, the headlamp low
beam and clearance,
tail, license
and instrumenl illumination
lamps automatically turn on. Light-
ing switch operations
other than the
above are the same
as
conventional light systems.
Engine Wjth engine stopped
Wrth engine running
Lighting switch OFF
1ST
2ND OFF 1ST
2ND
B c
Bc B
c B
c Bc B
c
Headlamp High
beam XX
o XX
o o Xo XX
o XX
oo X
o
LOW Deam XXX
Xx XX
o Xo
oo XX X
Xo X
Clearance and tail lamp X
XX
oo oo
o oo
ooo o
o ooo
License and instrument
illumination lamp X
X
Xo o
o oo
oo oo
oo o
oo o
O: Lamp "ON"
X: Lamp "OFF"
El: Added
functions
Schematic
] GNI TI ON SWI ICIl
ON o. START J
GN] T] ON SW] ICI
SIART BATTERY
a 7 9
5 tt
I
)? 3
OAYIIIlE L] GII
CON IROL
UN]T L]GNTING
SW] TCH
HEAO.
Rf. H]
GH AEAM
] NDI CAIOR
ALIERNAIOR LO2
0 ensine
mode s
Exccpt LDz0 eng ine
node s
MEL675A
EL4O

HEADLAMP
-
Daytime Light
System -
Wiring Diagram
To. ea ^an.
e amF+
H
E
E
F
tr
TT
rq
t,t -F
H{
trTl
A
ffi fl
F?r
Tt l
E
ffi
zu
-n
ffi
q
C ir
ril
FE
!4
ffi
tTt
l-.l
r-
ffi
FF
H
-T-t
!:l:l
: 9
-l-
ttr
fT_
-T-
t
4c)
iY
i
Y
-u \Y/
z
o
z
E -..
Z
-
-.-
qr
E,i )
B!0!]
.a .a
o-"
l
a
c
o
5
E
til
- /:\
;; -
;
:
2
A
trT-l .4
L=
?
--J
;
i
:
---D
. .r
c- je-T"
t I
.tr' ,i'j -
A
,-D', [r_] ." 6lr6
Gr a,-
F:u /-L
I .G+
DLi
/a a.n
h:i
!:r €/
6), -
reJc
t
/:\
L€/
I
;
I rEl
5 Frl
t-,
eml -
eH
qF,3l
-n rtr
-i
=
+so
ffi'
fl
,--]---.: t-*,-'
I
i
T
zu -----1
o
3- rR."i
al
t,
o =l
n o rldadd
dd
t!.4E16744
EL.41