Head light NISSAN 300ZX 1984 Z31 Electrical System Workshop Manual

ELECTRICAL SYSTEM
I
SECTION EL
CONTENTS
HOW TO READ DIAGRAMS
STANDARDIZED RELAY
POWER SUPPLY ROUTING
BATTERY.
.. ..
STARTING SYSTEM .
STARTING SYSTEM -Starter -
CHARGING SYSTEM .
CHARGING SYSTEM - Alternator
COMB IN AT1 ON SWITCH
INSTRUMENT SWITCH
HEADLAMP
EXTERIOR LAMP,
INTERIOR LAMP
.
..
..
..
..
..
... ......
..
.. ....
..
.. ...
EL- 2
EL- 3
EL- 4
EL- 6
EL- 9
EL-
10
EL- 15
EL- 17
EL- 23
EL- 25
EL- 26
EL- 34
EL- 38
METER AND GAUGES - Digital Type Combination Meter . . EL- 41
METER AND GAUGES - Digital Type Combination Gauge . .. .. EL- 57
METER AND GAUGES - Needle Type Combination Meter .. . EL- 65
METER AND GAUGES
- Needle Type Combination Gauge.. .... EL- 68
WARNING LAMPS AND CHIME. .......... ... .... EL- 71
VOICE WARNING SYSTEM
... ... EL- 76
TIME CONTROL SYSTEM ... EL- 81
WIPER AND WASHER .... .... ... ... . EL- 89
HORN, CIGARETTE LIGHTER, CLOCK . . ......... EL- 92
REAR WINDOW DEFOGGER
... .. ... ....... EL- 93
AUDIO AND POWER ANTENNA
,. . .... .. . EL- 95
AUTOMATIC SPEED CONTROL DEVICE (AS
C D ) . ... , . EL- 97
LOCATION OF ELECTRICAL UNITS
... .. .. .. EL-104
HARNESS LAYOUT
. . .. .. .. . EL-107

HEADLAMP
Operation
0 The following chart depicts the operational modes of relays and headlamp motors in relation to the posi-
nons
of the headlamD and retract switches
Light switch
Retract switch
Mal”
Dimmer Headlamp
Uphold relay
Headlamp relay
Pasrlng relay
Headlamp mofor
Parsing -2ND 7 Main
nn
1 ST
I I I
I I I I I , I , , 1 I 1 I , I I OFF 1 1 I I I I 1 I I OFF I I 1 I I I I I I II I I
UP
II 111
I
Ill I I I !
I j ON
I I
I ON
I I I I
I
OFF I
I I
I I I 1 I I1 1 I 1
I/ OFF
I I 1, I !I I OFF ~
I I UP DOWN
SEL743D
EL-26

HEADLAMP
Trouble-shooting
Check diodes
between light switch
and up hold relay
1 OK
Check harness
between headlamp
relay and headlamp
motor
headlamp motor When turning retract
switch to
"UP", do
headlamps open?
Check headlamp
Yes relay
Check headlamp
motor
Turn retract switch
to "DOWN"
between headlamp
relay and headlamp
motor
v
When turning light
r switch to "ZND", do
-No When turning light
switch to "OFF". do
headlamps close? ~
on, I headlampsopen? I I
Replace
headlamp
timer -.
-
I
(es
switch
Check up hold relay 1 I
lo
Check diodes
between light switch
and up hold relay
OK
between light switch
and headlamp motor
When turning light
switch to "PASSING", Replace headlamp
do headlamps open?
Headlamps do not close
F
(Turn light switch to "OFF"
c - No
When turning retract
switch to "DOWN",
do headlamps close?
I - Check headlamp relay
Yes
Check retract switch
Check headlamp
EL-30

EXTERIOR LAMP
-
Item
-
Headlamp
Au, iliary driving lamp
Front combination lamp
Front side marker lamp
Rear side marker lamp
Rear cornbination lamp
1-urn signal
StopITail
Elack-up
Lictme plate lamp
Interior lamp
Spot lamp
Rear (luggage) compartment
lamp
Door step lamp
Leg room lamp
-
-Stop and Tail Lamp Sensor Check,
0 Before checking, ensure that bulbs meet Wattage (W)
65,35
55
2718 34
34
2718
2718
27
40
10
a
34
5
2
soecif ications
STOP LAMP
Stop lamp switch on
Stop lamp on good order
stop lamp removed Approx 12 volts
Approx 2volt6
voltmeter
SEL170B
TAIL LAMP
Lighting switch on
Tad lamp mgood order
Tail lamp removed ~pprox. 12 vans
. Approx 2 volts
SEL1710
- Bulb Specifications
SAE trade
number
Hi3054
-
1157
158 158
1157 1157
1073
-
-
-
-
-
-
EL-37

WIPER AND WASHER
Headlamp Washer/Wiring Diagram
HEADLAMP
RELAY
WASHER HEADLAMP @
: (Back ride)
HEADLAMP
WASHER
SWITCH
7
- 22 I1 BODY GROUND IR H ride)
HEADLAMP
WASHER
BODYGROUND (L H $#de)
@ GLmodelr
@ GLLrnodelr
@ Digital type meter
@ Needle type meiei
BODY GROl (R H ride)
II fWhw
(Engine room harnerr)
I LIGHTING SWITCH
J
(Main harness)
USE
7/1
w
II
IGNITION SWITCH I ACC or ON
I I
SEL727D
EL-91

@3 Fuse block
TOEFI H
A S C D control unit
To door harness
L H White)
To door harness L H (Blue)
To door harness L H (SF models) To 0 (Blue) (CLL models)
To
@ (White)
To @ (Non-turbocharger models)
. Clutch switch (A S C D ) . Stop switch (A S C D ) Stop lamp switch
Step lamp L H
Kickdown switch (A/T models)
Lightlng switch
Wiper switch
Horn switch
Key
lamp
ul
Cigarette hghter
Ash tray lamp
Step lamp R H
To @I (Blue)
To 0 Wite)
Flasher unit
Ignition switch
AS C D switch
Headlamp switch
Intermittent wiper tune
control
Steermg lock swltch
An conditioner harness
Au conditioner harness Au conditioner harness To 0 (Non-turbocharger models) To 0 (Turbocharger models) @ To @I (Black)
To @ (Blue) To @ (White) @ Tune control unit
TO door harness R H (ST models)
To door harness R H (CL and GLL models)
To door harness
R H (GL and GLL models)
@ . To @I (Blue) (GLL models)
@ Voice warning unit
I@
@J
To E P I harness (Non-turbocharger models)
To E P I harness

,
TO TIME CON-
TROL UNIT
TO INST H LH (CHIME)
TO ENGINE
ROOM
H R H (UPHOLD RELAY)
TO ENGINE ROOM H L H IHEAO-
TO LIGHT SW TO LIGHT SW -
TO REAR
ro KEY sw
3OOM H R H A S C 0 RELAY1 To As sw (VACUUM ROOM H L H
PUMP RELAY)
(For time control system, headlamp system, AS C 0 and E F I system1

Diode
L & GLLxodelr
TO ENGINE ROOM
H R H (HORN RELAY]
HRH
ITHEFT
WARNING RELAY-11
TO ENGINE ROOM
TO THEFT WARNING
CONTROL UNIT
TO HORN SWJ
TO BACK DOOR SW TOTHEFT WARNING 3TlME CONTROL UNIT CONTROL UNIT
TO ENGINE ROOM H R H ro INST H R H :DOOR WARNING LAMPI sw TOEFI H
TO LIGHT SW TO ENGINE ROOM H R H (POWER
STEERING SWI
TO INJECTOR BLOWER IFAN MOTOR RELAY)
(For theft warning system & E F I systeml
ode 6&
F model9
Not used
TOEFI H
TO ENGINE ROOM
HRH (POWER
STEERING SWI
TO LIGHT SW
TO FUSE
TO REAR
DEFOGGERRELAY
(For E F I system1 ode
TO TIME CONTROL
TO INST H
L H
TO ENGINE ROOM H
TO KEY SW UNIT
TO ENGINE ROOM H L H
(HEADLAMP MOTOR) (CHIME]
TO LIGHT SW
TO LIGHT SW IUPHOLD RELAY)
TO STEP LAMP TO DOOR SW R H
TO TIME
CONTROL UNIT
[For headlemp system & time control system)
Itode @
TO BACK DOOR ,LOCK SW
TO DOOR SW L H
TO DOOR SW R H
TO DOOR H LH
TO DOOR H
RH
TO VOICE WARNING UNIT AN0
TllEFT WARNING COhTROL UNIT
TO THEFT
WARNING
rCONTROL UNIT
TO BACK
DOOR SW
TO
DOOR SWRH
TO INST H R H (DOOR WARN-
ING LAMP)
TO TIME CONTROL UNIT
(Far voice warning system & theft warning system)
(Far theft warning system & tlme control system)
Turbocharger models
Nan turbocharger models
2+2 seater
2 seater
Door muror defogger swtch
A/T indicator lamp
RcmGlc
con1;a: miiiDi 8...itCh
0 D switch (AIT models)
Headlamp
cleaner switch
Shock absorber switch (Turbocharger models)
Body ground
Diode Diode
(Sf modcls)
Diode (GL and GLL models)
Diode (2+2 seater)
Theft warning control unit Seat belt switch R H (GLL models)
0, Sensor control amp (GLL models)
Parking brake switch
Radio amphfier
(GLL models)
Seal
bell switch L H (SF models) Seat belt switch L H (GL models) lo power seat harness (GLL models)
Body ground
(GLL models)
Didoe
(GL and GLL models)
Body ground (GLL models)
Body ground
(GLL models)
I