1991 MITSUBISHI 3000GT relay

/
L
,
LJEXTERIOR
- SDecifications-a- - -~------~----ItemsSpecifications
Wiper and washer switch
Rated load A
Wiper switch
LO, HI4
INT0.22 f 0.05
Washer switchMax. 4
Voltage drop (at
12V and the rated load)VWiper switch0.2 or less
Washer switch0.5 or less
Rear wiper and washer switch
Rated load A
Wiper switch
5Washer switch
5Voltage drop V0.1 or less
Intermittent wiper relay

Intermittent interval (min.-max.)sec.
Variable-interval intermittent wiperApprox. 3
- 12
Delay time in washer movingsec.
0.6
Intermittent intervalsec.
8+2Door mirror
Printed heater lines
Working voltage V
IO-15Operating current A3.5 or less
Resistance
s17.7 - 10.2SERVICE SPECIFICATIONSMBlKC-
-ItemsSpecifications
Standard value
Front wiper blade park position
(A)mm (in.)15 ‘-; (.6 +_$ISEALANTS AND ADHESIVES
itemsSpecified adhesive
I
3M ATD Part No. 8609 SUPER FAST URETHANor equivalent
3M ATD Part No. 6382 or equivalent
r--- ~~Side garnish3M ATD Part No. 6382 or equivalent
TSB Revision

EXTERIOR - Troubleshooting51-5
TROUBLESHOOTING
LWINDSHIELD WIPER AND WASHER
CIRCUIT DIAGRAMIGNITION :
i
ir
FRONT
KmYE7
-I--l--r-I-ii .
@
15A--
----
JUMPER
CONNECTOR
A-11X
Ea
d
53----
1
i4
CT
C-79
S&~DIAGNOSIS
CONNECTOR
EB'p%Jg@
g:f;:[pm1
:X35-AC-R1301-NY.:1
~;x2,--f-l--13L1------ ----- ---- ------ -7 q’,
I i
15:2 $x2
~-fi5
x3lTX2 pi2k%hw, :2~
3r,. I-EIv
s.LIjWl z
COLUMNn11 SWITCH C-113
MITTENTFROiiFRONTI IWIPER RELAYWIPER SWITCIII 1WASHER_SWITCHTI
34
TMSlKHBM
fITCH(ACC)
6LOll"FAST
VARIABLEINTERMITTENTo
WIPER
CONTROL
SWITCH
1 TSB Revision

51-6EXTERIOR - Troubleshooting
FRONT
wm
c
c-29
[ml
FRONT
E%iRr‘(
A-19L
II:C
Iza
C
.---
FRON'IWIPER
SWITCH
*WIPERIGNITIONRELAY SWITCH(ACC)
7
$1
1
7I
I27’
jA -’
I--CII;BRE+lk
5-------
%l:VEHICLES WITHCUT THEFT-ALARM SYSTEUZ2:VEHICLES WITH THZFT-ALARM SYSTEM
1
I
------_
CUITFAKER
-.--I
5
5:CD
d
44 31
1
rEBRMOTOR
A-15TSB Revision

EXTERIOR - Troubleshooting51-7
LOPERATION

l When the wiper switch is placed in the LO
position with the ignition switch in the ACC or
ON position, wipers operate continuously at low
speed.
l Placing the wiper switch in the HI position
causes the wipers to operate at high speed.

l When the wiper switch is placed in the OFF
position, the cam contacts of wiper motor
causes current to flow through the auto wiper
stop circuit, allowing the wiper blades to cycle
before they reach to the stop positions.

l When the washer switch is placed in the ON
position with the ignition switch in the ACC or
ON position, washers operate.
REAR WIPER AND WASHER
OPERATION

/l
i,When the rear wiper switch is placed in the ON
position with the ignition switch in the ACC or
ON position, wipers operate continuously at low
speed.

lWhen the rear wiper switch is placed in the OFF
position, the cam contacts of wiper motor
causes current to flow through the auto wiper
stop circuit, allowing the wiper blades to cycle
before they reach to the stop positions.

lWhen the rear wiper switch is placed in the
INTposition with the ignition switch in ACC or ON
position, the rear intermittent wiper relay is
energized causing the rear intermittent wiper
relay contacts to close and open repeatedly.
lWhen the contacts are closed, the wiper motor
is energized.
lWhen the rear wiper motor is energized, the rear
intermittent wiper relay contacts open; howev-
er, the cam contacts keep the rear wiper motor
energized until the wiper blades return to their
stop position.
LTROUBLESHOOTING HINTS
1. Wipers do not operate.
(1) Washer is not operative, either.
l Check multi-purpose fuse No.
0.l Check ground.
2.Low-speed (or high-speed) wiper operation only
is inoperative.
l Check wiper switch.
3. Wipers do not stop.
l
.Check wiper motor.
l Check intermittent wiper relay.
l Check wiper switch.
4. Washer is inoperative.
l Check washer motor.
l Check washer switch.
NOTEFor information concerning the ETACS control unit,
refer to
P.51-24.TROUBLESHOOTING HINTS
1. Wipers do not operate.
(1) Washer is not operative, either.
l Check multi-purpose fuse No.
@.l Check ground.
2. Low-speed wiper operation only is inoperative.
l Check wiper switch.
3. Wipers do not stop.
l Check wiper motor.
l Check rear intermittent wiper relay.
l Check rear wiper switch.
4. Intermittent wiper operation is inoperative.
lCheck terminal voltage of the rear intermit-
tent wiper relay energized.
(Refer to
P.51-34 for information concerning
the installation position of the intermittent
wiper relay.)
TerminalNo.Voltage
I
Check
2OVRear intermittent wiper
relay or rear wiper switch12v
Rear intermittent wiperrelay0 f-, 12v
-(Normal)(alternating)5. Washer is inoperative.
l Check washer motor.
l Check washer switch
TSB Revision

51-8
EXTERIOR - Troubleshooting
CIRCUIT DIAGRAM
IGNITION IiITCH(ACC)TAILLIC
3
I
F0.
REAR0
INTERMITTENTc15A
IWIPER RELAYI
E-1836
1417
16_----_-----_-- ----__
CL
t1
3
23J&m
0;
3
%x4/X7/\/\
I~
I
I
I
I
I~
I
I
‘4 i
T RELAY
C-82
1
DEDICATEDFUSE
0.85Ld
3 C-69
1
J/Bii+m
d1
8 C-71
L
ii?m
d
8 D-44
3
REAR
LmFi/ILL6
80
I
iim
6 O.------
5
,,8
D-42
-1
RHEOSTAT
2
REAR
iii%~~R
F-15 F-34pLi%Fq2 D-41
idm
d
I
1m
I
REAR
WIPER
MOTOR
F-03
w123
b5-AC-RlJOE-NYTSB Revision

EXTERIOR - Windshield Wiper and Washer51-25
TROUBLESHOOTING QUICK-REFERENCE TABLE
INTERMITTENT WIPERSProblem
The wipers don’t operate when
the wiper switch is set to the
“INT” position.
[The wipers do operate, however,
when the wiper switch is set to
the “1” (low speed) position.]Probable cause(s)Checking procedureRemedy
Damage or disconnectionIf a malfunction is discov-
of the wiring of the wiperRepair the wiring
har-ered as a result of the
switch
(“INT”) inputness, or replace the
checking of the inputcolumn switch.
circuit.(P.51-24). conduct check
No. 2 (P.51-28) of the
Damage or disconnectionindividual part and
of the wiring of the wipercircuit.
switch
(“INT”).Damage or disconnectionIf a malfunction is discov-
of the wiring of theRepair the wiring
har-ered as a result of theness.
ignition switch input
circuit.checking of the input
(P.51-24). conduct check
No. 1 (P.51-27) of the
individual part and circuit.
Damage or disconnectionConduct check No. 4Repair the wiring
har-of the wiring of the wiper(P.51-30) of the individualness, or replace the
relay activation circuit.part and circuit.column switch.
Malfunction of the wiper
relay.
The wipers don’t stop when
the wiper switch is OFF.
IThis problem occurs at the low;p;$ of the wipers.)
If the wipers continue operating{without stopping) at the “2”
sosition (high speed) of the
uiper switch, there is a
short-circuit in the circuit at the
Ylviper motor high-speed side.
JVhen the wiper switch is set to
the “INT” position, the wipers
operate continuously at low
speed, not intermittent
operation.
IThe wipers stop, however, when:he wiper switch is set to
“OFF”.)
The intermittent time does not:hange when the intermittent
Jariable volume switch setting
s changed.Malfunction of the
elec--Replace the electronic
tronic control unit.control unit.
Short-circuit in the wiperIf a malfunction is discov-
switch
(“INT”) inputRepair the wiring har-ered as a result of theness, or replace the
circuit.checking of the inputcolumn switch.
(P.51-24). conduct check
Short-circuit in the wiperNo. 2 (P.51-28) of the
switch (“INT”).individual part and circuit.
Short-circuit in the wiperConduct check No. 4Repair the wiring
har-relay activation circuit.(P.51-30) of the individualness.
part and circuit.
Malfunction of the elec-
-Replace the electronic
tronic control unit.control unit.
Short-circuit in the wiperIf a malfunction is discov-Repair the wiring
har-switch
(“INT”) inputered as a result of theness. or replace the
circuit.checking of the inputcolumn switch.
(P.51-24). conduct check
Short-circuit in the wiperNo. 2 (P.51-28) of the
switch (“INT”).individual part and circuit.
Malfunction of the elec-
-Replace the electronic
tronic control unit.control unit.
Damage or disconnectionIf a malfunction is discov-Repair the wiring
har-of the wiring of the inter-ered as a result of theness, or replace the
mittent variable volumecolumn switch.
switch input circuit.checking of the input
(P.51-24). conduct check
No. 3 (P.51-29) of the
Damage or disconnection
of the wiring of the inter-individual part and circuit.
mittent variable volume
switch.
Malfunction of the
elec-tronic control unit.-Replace the electronic
control unit.
TSB Revision

51-30
EXTERIOR - Windshield Wiper and Washer
4. WIPER RELAY ACTIVATION CIRCUIT
Columnswitch
ETACS untt(ECU) t,
lgnttton switch (ACC)I
Junction block(Multi-purpose fuse)0.85L
*11 $0J\
i?+”
coii
aIt
0.85L-W dA
*’II16FO322
Wiper
motor
Ei
123 4
Operation Description
With the wiper switch at the “INT” position, switch ON the transistor (by the intermittent activation signal
from the electronic control unit) in order to activate the wiper relay.
Electronic Control Unit Terminal Voltage (Connection Status of Electronic Control Unit Connector)
ECUterminal No.SignalStatusTerminal
voltage
4”’
6*2Wiper relay signal)N$Fy switch
I,Ignition switch “OFF”
Ignition switch “ACC”ov
System
voltage
NOTE“I : Vehicles without theft-alarm system
“2: Vehicles with theft-alarm system
Checking Individual Part
Wiper relay: Refer to
P.51-34.
Lj 1
I
I
I
I
‘d ’1
I
\ ~
1 TSB Revision

51-34
EXTERIOR - Windshield Wiper and Washer
Connector B
-____1.310027lXN007t
1
dentification mark: AInspection of Wiper Relay (Built-in Column Switch)
(1) Check to ensure that there is continuity between terminals@ and @ and between the terminals @ and
@, and that
there is no continuity between terminals @ and
@.
(2) Connect the positive terminal of the battery to terminal @dand the negative terminal to terminal @ to check that the
battery voltage is available at terminal
@.INSPECTION OF WASHER MOTOR
(I) When the washer motor is inspected, make sure that it is
mounted on the washer tank and that the washer tank is
filled with water.
(2) Connect the battery as shown to check whether water is
pumped out.
INSPECTION OF WASHER FLUID LEVEL
,SENSOR
(1) Connect a circuit tester to the connector of the level sensor
as shown.
(2) Check that when the float is moved down, the circuit is
closed and that when the float is moved up, the circuit is
opened.
Front deck garnish18FO164SERVICE POINT OF INSTALLATION
2. INSTALLATION OF WIPER ARM
(1) The wiper arms, right and left, are different in shape.
Check the identification symbol.
(2) After the wiper blades have been set, install them in
such a way that the ends of the wiper blades will stop at
the specified positions (standard values).
Standard value: (A) 15
tz mm (.6 tf in.)
dTSB Revision