1984 NISSAN 300ZX ground

FUSE BLOCK
I BATTERY I
TIME CONTROL UNIT [Refer to "TIME
CONTROL
SYSTEM
I I
LIR
@ SF models
IWhiIel DOOR STEP @ GLmodelr (Door harness R H I LAMP R H @ GLLmodelr
@ D8g1tal tv~e meter
@) Needle type meter
J~/~U
LIR U
I 1 II I
. BODY GROUND IL H ridel

METER AND GAUGES - Digital Type Combination Meter
-
(+) (-) OFF
Display Check (Cont'd)
a Digital combination meter is provided with a
self-check function to determine whether or
not meter itself
is malfunctioning.
Test procedure
(1) While pushing trip reset switch A, switch igni-
tion switch from
"OFF" to "ON" Trip reset
switch
A should remain pushed in until self-
check operation start
(2) Meter starts to automatically perform self-
check. Segments for meters and gauges should
illuminate one after another.
(3) If any particular segment remains off, corn-
bination meter
itself is faulty.
ACC ON -Preparation for Trouble-shooting -
0

Approx
12v 0 ov ov
SEL665D
a
Remove instrument switch
a Remove cluster lid A
Remove nut which holds instrument switch
- Trouble-shooting
I Go to "Display check" I
1 NG
power source circuit unit
-IF' L-IF-NG
Replace meter and
gauge assembly
Check for loose
harness connector
Voltmeter terminals Ignition switch position
Ohmmeter terminals
Ignition Switch OFF
Continuity exists ground
a Disconnect meter harness connector as shown
below
.
SEL744D
-
EL-47

METER AND GAUGES - Digital Type Combination Meter
Power Unit Check
Voltmeter
terminal
(f) (-)
E -
-%; 0
0
@I
__
@
9
0
0
Remove power unit with harness connected
Perform voltage and continuity tests Refer to
chart below
I Voltage
[VI
Approx 12
Approx 5
Approx 16
Approx 5
Approx 22
Approx 285
Turn ignition switch to "ON"
1 - 1 More than 6
Remarks
Check when no
display appears
For speedometer
For tachometer
For Temp,
Oil, Volt
sause
For Fuel gauge
For "Trip", "Ave
speed"
& "Dirt to
empty" meter
Turn ignition switch to "OFF"
Ohmmeter
Continuity Remarks
Check when no
ground display appears
If specified voltage or continuity is not produced,
replace power unit.
- Boost Sensor Check
1 Connect vacuum pump gauge to boost sensor
vacuum hose
2 Disconnect harness connector from boost
sensor and connect battery and voltmeter
as
shown
3 Apply vacuum pressure to boost sensor by
vacuum pump gauge and measure voltages
Approx.
2.2V at 0 kPa (0 mmHg, 0 inHg)
(Atmospheric pressure)
Approx.
1 3V
at -53.3 kPa (-400 mmHg, -15 75 inHg)
vacuum pump gauge
SEL674D
EL-53

01 L OIL OIL
PRESSURE TEMPERATURE PRESSURE SENSOR SENSOR SENSOR
I
BOOST
SENSOR
v) m r
P 0
%
@ f$& BODY GROUND
m
h
(Instrument harness)
FUSE
BLOCK J
COMBINATION GAUGE
VOLTMETER
GAUGE
4
GAUGE
BOOST METER
TRIMMER
IGNITION SWITCH
ON or START
I G (Main harness)
Turbocharger
model
Nom turbocharger
model
A/T model
M/T model
3
m
-I
m
rn
D
z
U
0
D
C
0
rn
ui
I
z
(D (D Q
T
-I Y
0 (D
0 0
3
0
¶ 9)
¶
9) c
0
(D
-.
E
G)

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

rn
0
I-
b
@
BODYGROUND IR H sidel
FUSE BLOCK
BODYGROUND (R H sidel
p
m@
I
REAR WIPER MOTOR
- BODYGROUND
I v
mm
(Main harness)
BODYGROUND - (Back %del
BODYGROUND
I
U I@> I (White L H ridel
WASHER (Engine room MOTOR harness1 -
BOCiY SE GROUND IL H %de)
SF models
GL
models
GLL models
Digital type meter
Needle type mete

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

AUDIO AND POWER ANTENNA
Power Antenna Motor Check
1 Disconnect, at connector, harness between
power antenna unit and antenna timer.
2 Apply 12-volt battery voltage across @ and
@ to make Sure antenna rod extends and
retracts
3. Connect a voltmeter across terminal 0 and
ground terminal
of battery.
4 Check to determine if voltmeter varies between
0 and 12 volts (approx ) in relation to move-
ment
of antenna rod when 12-volt battery
voltage
IS applied across @ and @
If above test results are not satisfactory, re-
place antenna
motor.
SEL732D
Radio Fuse Check
SEL733D
EL-96