light NISSAN 300ZX 1984 Z31 Electrical System User Guide

VOICE WARNING SYSTEM
Trou ble-shooting
Voltmeter
Condition
1 Ignition sw "ACC"
Check if speaker in driver's door
produces sound wheri radio
is
turned "ON"
Ignition sw "OFF"
Normal
i
Check harness connector run-
ning to driver's door speaker
Lighting switch "ON"
Check voice warning switch
CNG>
More than 9V
Replace voice warning switch i
v
Disconnect connector running to voice warning device and check voltage
at each terminal of connector
I- I I
I OK T
Replace voice warning device
I NG i
Check harness
EL-79

rn I-
0
do
Left door Right door Parking brake Fuel level Light
OK (7) Check if step lamp
left or right door
is opened
Check door switch
I
I
lxeed % Sensor
Signal Check"
-1 (Refer to "METER I
Check if fuel
warning lamp
comes on when Check if parking
brake warning
lamp comes on
when parking
brake lever
is
pulled with
ignition switch
"ON"
NG
Check parking
brake switch Check fuel tank
gauge unit
(Refer to "METER
AND GAUGES")
Repair or
replace
AND GAUGES" )
v
Check for loose connector,
poor grounding
or broken wire
'""I
Repair or
replace
OK
Replace voice warning device
Check if all illumi-
nation lamps come
on when lighting
switch
is "ON"
Check lighting
switch

TIME CONTROL SYSTEM
CAUTION
Never touch the terminals of time control unit with bare hands.
1) Intermittent wiper control timer 5) Light warning timer
2) Interior lamp timer 6) Key warning timer
3) Door key hole illumination timer 7) Seat belt warning timer
4) Illumination control timer 8) Rear defogger timer
Time control unit has the following functions
ltNlTlON SWlTCH IGNITION lGNlTlON
FUSE
TlME CONTROLUNil /I
1
SEL705D
EL-81

TIME CONTROL SYSTEM
Trouble-shooting (Cont'd)
BO
,@ @
Ohmmeter
Door key hole illumination does not come on even
if driver's side door handle
is pulled
I
illumination control switch
DARK BRIGHT
Except 0 R OR
Excepton OR
I Go to "Power Supply Circuit Check" I
Check harness for T C U
power supply circuit
, rK
Check key hole illumination circuit
I /OK I Check key hole illumination
Check harness between T C U
and key hole illumination
Go to "Door handle switch circuit check"
(Refer
to back oaqe 1
lNG Check harness between T C U
and door handle switch
l°K Replace T C U
1
2
3
Turn ignition switch to "OFF"
Pull outside door handle (driver's side)
Measure voltage across
0 and @
Check from harness side
Ignition witch OFF
After outside door handle Idrlver'r ride) 16 pulled and releared, voltmeter indicates OV for about 7 seconds and then 12V
Voltmeter
SEL714D
Illumination control system does not actuate
Check light switch circuit
T C U and light switch
Check illumination circuit
harness connector
Check illumination control circuit
control switch
LIGHT SWITCH CIRCUIT CHECK
Check from harness side
Ignition witch OFF Approx(i51j Light witch ON
u
SE L715C Voltmeter
ILLUMINATION CIRCUIT CHECK
Check from harness side
EL-86

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

HORN, CIGARETTE LIGHTER, CLOCK
Wiring Diagram
SEL729D
EL-92

REAR WINDOW DEFOGGER
Filament Check (Cont'd)
3 To locate burned out point, move probe to left
and right along filament to determine point
where
tester needle swings abruptly
/AI 1-1
SEL266
Filament Repair
REPAIR EQUIPMENT
1 Conductive silver composition
(Dupont No 4817 or equivalent)
2 Ruler, 30 cm (1 1 8 in) long
3 Drawingpen
4 Heatgun
5 Alcohol
6 Cloth
REPAIRING PROCEDURE
1 Wipe broken heat wire and its surrounding area
clean with
a cloth dampened in alcohol
2 Apply a small amount of conductive silver
composition to tip of drawing pen
Shake silver composition container before use.
3. Place ruler on glass along broken line. Deposit
conductive silver composition on break with
drawing pen Slightly overlap existing heat wire
on both sides [preferably 5 mm (020 in)] of
the break.
Funit Drawmg pen Ruler mm (In]
BE540
4 After repair has been completed, check re-
paired wire for continuity This check should
be conducted
10 minutes after silver composi-
tion
is deposited
Do not touch repaired area while test is being con-
ducted
r point
SEL0120
5 Apply a constant stream of hot air directly to
the repaired area for approximately
20 minutes
with
a heat gun A minimum distance of 3 cm
(1 2 in) should be kept between repaired area
and hot
air outlet If a heat gun is not available,
let the repaired area dry for 24 hours.
Repaired Point
Heat gun
SEL0130
EL-94

@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