1984 NISSAN 300ZX Blower motor

TIME CONTROL SYSTEM
Volwnetei terminals
- Preparation for Trouble-shooting -
1 Remove R H dash side cover and remove
blower motor
2 Remove time control unit with harness con-
nected
3 Connect main harness to instrument harness (if
disconnected)
Check from harness ride
Ignition switch pOIitiOn
harness connection SE L750D
I+)
-Power Supply Cercuit Check-
1-1 OFF ACC ON
@
@ 1 @ j ov 1 ov I Approx 17v
ov Approx Approx 12v 12v 0
Contlnult"
- Trou ble-shooting
intermittent wiper does not operate
4
I Go to "Power Supply Circuit Check"
OK NG
Check harness for T C U
power supply circuit
v
Check wiper relay circuit
OK NG
I Check wiDer relav I I
I
I 10 K ~NG
Check harness between Replace
T C U and wiper relay
Check wiper switch circuit check wiper relay
1 OK
I
Replace T C U Check wiper switch
Check harness between T C U Replace
and wiper switch
b
wiper switch
v
WIPER RELAY CIRCUIT CHECK
1 Turn wiper switch to "INT"
2 Turn ignition switch to "ACC"
3 Measure voltage across and 0
Check from harness ride
fTl7rFl
Wiper switch INT 0-12v lgnmon switch ACC
Needle shakes from 0 to 12V every 2 to 15 seconds
SEL708D
Voltmeter u
WIPER SWITCH CIRCUIT CHECK
1 Turn wiper switch to "INT"
2. Turn ignitionswitch to "OFF".
3 Check continuity between @ and @
Check from harness ride
Wiper switch INT
Ignition switch OFF
Ohmmeter
SEL709D
EL-83

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