1984 NISSAN 300ZX key

rn I-
0 &
TIME CONTROL UNIT (Refer to 'TIME CONTROLSYSTEM" h
@$
STEP
LAMP R H @=@L/R L/E
INTERIOR
@
:;: STEP LAMP L H
@) Digital type meter
@ Needle type meter
J
Ii DOOR HANDLE
SWITCH
IDoor harness L H )
L/R
G/R KEY HOLE
ILLUMINATION

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

TIME CONTROL SYSTEM
Trouble-shooting (Cont'd)
CHIME CIRCUIT CHECK
1
2
Turn ignition switch to "OFF"
Measure voltage across @ and @ when
driver's door
is opened and closed
Check from harness ride I
I Warning chime does not actlvate
1
I Go to "Power SUDD~V Circuit Check" 1
ignition rwltch OFF Approx 12Vwhen drlver'r stde door IS closed Voltmeter needle swings (0 - 12V) when dnver's
%,de door tr opened SEL718D Voltmeter
STEERING LOCK SWITCH CIRCUIT
CHECK
1
2
Turn ignition switch to "OFF"
Check voltage between @ and @
Check from harness side
12V when ignmon key IS ret into key cyllndei OV when tgnltlon key 16 pulled out of key cylinder Voltmeter SEL7190
lamp does not go off nor come on
I + Go to "Power Supply Circuit Check" 1 1 OK 1 NG
Check harness for T c u
power supply circuit
Check belt warning circuit
OK NG
Check warning lamp
v
Check seat belt switch circuit
OK 1 NG
Check seat belt switch.
and harness between T c u
and seat belt switch
Replace T C U ~~
BELT
WARNING CIRCUIT CHECK
1 Unfasten seat belt.
2 Measure voltage across @I and @ when
ignition switch
is "ON"
Che& from harness ride
0 -12v Joltmeter needle keeps SwlngInQ appr~x 0-12Vl for about 7 ;econdr after ngnition witch Is Voltmeter :urned ON SEL720C
SEAT BELT SWITCH CIRCUIT CHECK
1 Turn ignition switch to "OFF"
2. Unfasten driver's seat belt.
3. Check for continuity between 0 and @
4 Fasten driver's seat belt
5 Check to determine if continuity does not
exist between 0 and @
Check from harness %de
Ohmmeter
SEL7211
EL-87

@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