clutch NISSAN 300ZX 1984 Z31 Electrical System Workshop Manual

~~ STARTING SYSTEM -Starter-
Magnetic Switch
Check
1 Continuity test (between "S" terminal and
switch body)
No continuity Replace
From battery
VL Ohmrnet
2 Continuity test (between "S" terminal and
"M" terminal)
No continuity Replace
Coli
SEL047D
- Pinion/Clutch Check
1 Check clutch
Check pinion to see that it locks properly
when turned in "drive" direction and rotates
smoothly when turned in reverse
SEL569B
Pinion does not lock in either direction or
unusual resistance
is evident Replace
Replace pinion if teeth are worn or dam-
aged (Also check condition
of ring gear
teeth )
Replace clutch gear if teeth are worn or
damaged (Also check condition
of arma-
ture shaft gear teeth
)
2 Inspect pinion teeth.
3 Inspect clutch gear teeth
EL-I 1

AUTOMATIC SPEED CONTROL DEVICE (A.S.C.D.)
-Preparation for Trouble-shooting Trouble-shooting
Remove AS C D control unit with harness AS C D control unit cznnot be set properly connected. I
Turn AS C D main switch "0FF"and then "ON"
to make sure indicator (located above combination
meter1 illuminates
Check for loose vacuum Check AS C D main
[-I switch and AS C D relay
Check power supply circuit for
A S C D control
unit SEL736D
Check stop switch. clutch
switch (MIT model).
inhibitor relay and
inhibitor switch (AIT model) POWER SUPPLY CIRCUIT CHECK
1 Release brake and clutch pedals
2 Turn ignition switch to "ON"
3 Turn A S.C.D main switch to "ON"
4. Check voltage between 0 and @ v Check harness between
AS C D power supply Check from harness side
-+ Release
A/T control -+ ..D" range
AS C D main wnch }-ON IOK Checksets:and
harness between control
unit and
set switch Voltmeter SELSlOD
SET SWITCH CIRCUIT CHECK
1. Turn ignition switch to "OFF". Go to "A S C D Actuator Check" -
2 Push A.S.C.D. set switch
3 Check continuity between 0 and @
Check from harness side
tion switch 4 OFF
C 0 ret switch + ON
SELBllD Ohmmeter
I
circuit
I Check set switch circuit for AS C D control unit 1
lNG Replace actuator !OK *
(Next page)
EL-99

SEL740D
CAUTION:
a Be careful not to twist wire when removing it.
Do not tense wire excessively during adjust-
ment.
Without depressing the accelerator pedal, adjust
wire tension with adjusting nut
Wire free play (at throttle lever):
0 - 0.5 mm (0 - 0.020 in)
a For A S.C.D. stop switch and clutch switch
adjustment, refer to
BR and CL sections.
a For vacuum pump and tank check, refer to HA
sect ion.
EL-1 038

LOCATION OF ELECTRICAL UNITS
LWarning chime Meter power unit (For digital
type combination
meter1
Hold relay (only for Canada
analog type
Clutch witch (For AS C D I
(For A 5 C D )
box
SEL753D
EL-I 06

@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