air NISSAN 300ZX 1984 Z31 Electrical System Workshop Manual

HEADLAMP
0
0
Headlamp Motor Check
0 No
8 Yes
Use an ohmmeter to check for continuity in
headlamp motor circuit while rotating motor
with manual knob
CAUTION.
Prior to performing continuity test, disconnect
ground cable from battery.
Ohmmeter probe
Headlamp Continuity
Yes
No
Alqning mark for
for up posltlon
SEL652D
- Aiming Adjustment
When performing headlamp aiming adjustment, use
ail aiming machine, aiming wall screen or headlamp
tester For operating instructions of any airner, it
should be in good repair, calibrated and used ac-
cording to respective operation manuals supplied
with the unit
If any aimer is not available, aiming adjustment can
be done
as follows
For details, refer to the regulations in your own
country.
CAUTION:
a Keep all tires inflated to correct pressures.
b. Place vehicle and tester on
one and same flat
surface.
c See that there is no load in vehicle (coolant, en-
gine oil filled up to correct level and full fuel
tank) other than
the driver (or equivalent
weight placed in driver's position).
W~=l,ltO(4409I c 'L
-7
, - LO 1300 001
Of headlamps
UPper edge of Vertical centerline ahead of headlamps -x high tntenrw zone
Height of lamp centers I .- 100 141
100 (41 .-
L A
4.. I.. 100 1100 1001 loo (41 (41 / (41 (41
KLeft edge of high intensity zone
= ACCEPTABLE RANGE untt mm (in1
SEL914D
Adjust headlamps so that upper edge and left
edge
of high intensty zone are within the ac-
ceptable range as shown
in the figure above
Dotted lines in illustration show center of
headlamp.
EL-33

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

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

AUTOMATIC SPEED CONTROL DEVICE (A.S.C. D.)
Trouble-shooting (Cont'd)
Resume switch will not operate
Replace AS C D
control unit Check resume switch
h Accelerate switch will not owrate 11
Check accelerate switch circuit
v v Replace AS C D
control unit Check accelerate swttch
Engine hunts
Q
Check vacuum hose for breakage, cracks or
fracture
OK lNG Repair or replace hose
v
Does AS C D wire move smoothlv7
I NG v OK
Repair or replace wire
I
I Go to "Actuator Check" I
OK lNG Replace actuator
.I
Replace A S C D control unlt
RESUME SWITCH CIRCUIT CHECK
1 Turn ignition switch to "OFF"
2. Turn resume switch to "ON".
3. Check continuity between @ and 0
heck from harness side
on witch -+ OFF
M 0 h rn rn el e r SEL6120
ACCELERATE SWITCH CIRCUIT CHECK
1. Turn ignition switch to "OFF".
2. Turn accelerate switch to "ON"
3 Check continuity between @ and @
Check from harness %de
ignition switch + OFF
Accelerator witch -+ ON
SEL6130 Ohmmeter -
Large difference between set vehicle speed and
actual speed
I v
Check AS C D wire and actuator move
smoothlv
1 NG Replace wire 01
actuator
Check vacuum hose for breakage, cracks or
I fracture
4 NG
I OK Repair or replace hose
I Go to "Actuator Check" 1
4 NG
Replace actuator c OK Replace A.S C D
control unit
EL-I 01