wiper blades MITSUBISHI 3000GT 1991 Service Manual

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
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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.)
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