Mitsubishi Grandis. Manual - part 4

GENERAL INFORMATION

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-13

Low speed wiper and high speed wiper 
control

When the windshield low speed wiper switch of the 
column switch is turned ON while the ignition switch 
is ACC or ON, the column switch turns ON the 
windshield wiper drive signal. Also, the wiper speed 
switching relay turns to OFF (LO), and the windshield 
wiper operates at the low speed.

When the windshield high speed wiper switch is 
turned ON, the windshield wiper drive signal turns 
ON. Also, the wiper speed switching relay turns ON 
(HI), and the windshield wiper operates at the high 
speed.

Windshield wiper linked with washer 
function <the initial condition: with 
function>

AC005437AB

ON

OFF

ON

OFF

ON

OFF

(HI) ON

Windshield low speed 
wiper switch

Windshield high speed 
wiper switch

Windshield wiper auto-stop 
signal

ON

OFF

Windshield wiper 
drive signal

Windshield wiper speed 
switching relay

(LO) OFF

Low speed operations

High speed operations

AC207005 AE

t

t

ON

OFF

ON

OFF

ON

OFF

ON

OFF

T

T

T1

T1

Windshield wiper relay

Windshield wiper 
auto stop signal

Windshield washer relay

Windshield washer switch

Wiper switch in 
off position

Wiper switch in intermittent 
operation position

t: 0.3 second
T: 3 seconds
T1: Intermittent wiper 
     intermittent time

GENERAL INFORMATION

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-14

• When the front-ECU receives a windshield 

washer switch signal from the column switch with 
the ignition switch in the ACC or the ON position, 
the ECU turns on the windshield washer relay. 
When the windshield washer relay becomes ON, 
the windshield washer motor starts to run to 
spray the washer fluid in the washer tank onto the 
windshield through the washer nozzles. When 
the windshield washer switch signal remains on 
for 0.3 seconds or more, the signal turns on the 
windshield wiper relay (The wiper interval 
depends on the condition. For details, see the 
list) to operate the windshield wiper at high 
speed. Turning off the windshield washer switch 
causes the front-ECU to turn off the windshield 
wiper relay "T" seconds later, thus operating the 
wiper to the auto stop position at low speed.

• When the windshield washer switch is turned ON 

during the intermittent operation of the windshield 
wiper, the windshield wiper switches to 
continuous operation and then resumes 
intermittent operation.

• If the ignition switch is turned to ACC while the 

windshield washer switch is being turned ON, the 
windshield washer relay becomes ON, but the 
windshield wiper does not activate linking with it. 
When the windshield washer switch is turned 
OFF and then ON, the windshield wiper makes 
the linking operation.

NOTE: 

.

•

Using a customize function, the driver can enable 
or disable the windshield wiper linked with 
washer function. For more information about the 
customisation feature.

•

When the windshield wiper linked with washer 
function is disabled by the customisation feature, 
the windshield wiper does not operate in 
synchronization with the windshield washer. 
However, the windshield washer can be 
activated. It is useful to melt down the ices of the 
frozen windshield.

REAR WIPER AND WASHER
Rear wiper control [the initial condition: 8 
seconds (without successive 
operations)]

1. When the rear wiper switch on the column switch 

is turned ON with the ignition switch at the ACC 
or ON position, ETACS-ECU turns ON the rear 

wiper drive signal for 3 seconds (approximately 2 
operations) and performs the intermittent action 
at 8-second intervals.

Wiper 
switch

OFF position

Intermittent operation position

Low-speed or 
high-speed 
operation 
position

Washer 
switch ON 
time

0.3 
second 
or less

0.3 to 
0.5 
second

0.5 to 
0.7 
second

0.7 
second 
or more

0.2 
second 
or less

0.2 to 
0.5 
second

0.5 to 
0.7 
second

0.7 
second 
or more

−

T1

0 
second

1 
second

2 
seconds

3 
seconds

0 
second

1 
second

2 
seconds

3 
seconds

3 seconds

AC207474

OFF

AD

T2: 7.4 seconds

ON

T3

T4

Rear wiper drive relay

OFF

ON

Rear wiper switch

OFF

ON

T1

T2

T2

T2

T2

Back-up lamp switch <M/T> or
inhibitor switch 
"R" position <A/T> 

t

T1: 3.0 seconds

t: 1.0 second

T4

T1

T4

T3

T2

T3

T4

T4

T3: 8.0 seconds

T4: 0.6 second

GENERAL INFORMATION

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-15

When the shift lever <M/T> or selector lever <A/T> is 

moved to R position during the rear wiper 
operation, the back-up lamp switch <M/T> or 
inhibitor switch R position <A/T> turns ON one 
second after that, ETACS-ECU sends the rear 
wiper drive signal for 3 seconds (approximately 2 
operations), and operates the intermittent action 
in 8 seconds interval.

2. By the special operation of the rear wiper switch 

on the column switch (successive 2-time 
operations), the rear wiper operates continuously 
regardless of the set intermittent time.

NOTE: The rear wiper intermittent time can be 
adjusted or cancelled for continuous operation by the 
customize function.

Rear wiper linked with washer function 
<the initial condition: with function>

• When the rear washer switch on the column 

switch is turned ON with the ignition switch ACC 
or ON, ETACS-ECU turns ON the rear washer 
relay. When the rear washer switch signal from 
the column switch remains ON for 0.3 seconds or 
more, ETACS-ECU turns ON the rear wiper relay 
to operate the rear wiper continuously. When the 
rear washer switch is turned OFF, the 
ETACS-ECU turns OFF the rear wiper relay 3 
seconds later. Then the rear wiper stops at the 
auto stop position.

• Even turning ON the rear washer switch during 

rear wiper operation causes the rear wiper relay 
to switch the operation to continuous operation, 
and then the rear wiper resumes intermittent 
operation at intervals of eight seconds, 7.4 
seconds after the completion of the continuous 
operation.

NOTE: Using a customize function, a driver can 
enable or disable the rear wiper linked with washer 
function. For more information about the 
customisation feature.

AC207003AE

   t : 0.3 second
T1 : 3 seconds
T2 : 7.4 seconds
T3 : 8 seconds
T4 : 0.6 second

t

t

t

ON

OFF

ON

OFF

ON

OFF

T1

T1

T1

T2

T3

T4

T4

Rear wiper switch 
in off position

Rear wiper switch in on position

Rear washer switch

Rear washer relay

Rear wiper relay

GENERAL INFORMATION

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-16

HEADLAMP WASHER
Headlamp washer control (Normal 
control)

When the headlamp relay (LO or HI) is ON with the 
ignition switch in the ACC or the ON position, turning 
on the headlamp washer switch on the column 
switch causes the front-ECU to turn on the headlamp 
washer relay for 0.8 seconds. When the headlamp 
washer relay becomes on, the headlamp washer 
motor operates to spray washer fluid onto the 
headlamps.

Headlamp washer control (Automatic 
control)

When the headlamp relay (LO or HI) is ON with the 
ignition switch in the IG ON position, turning on the 
windshield washer switch causes the front-ECU to 
turn on the headlamp washer relay for 0.8 seconds 
once only. When the headlamp washer relay 
becomes on, the headlamp washer motor operates 
to spray washer fluid onto the headlamps.

NOTE: After the automatic control operated, turn the 
ignition switch OFF once to operate the automatic 
control again.

AC313338

Headlamp washer switch

ON

OFF

ON

OFF

Headlamp washer relay

ON

OFF

Headlamp LO or HI relay

t

t: 0.8 second

t

t

t

AB

AC313284

ON

OFF

ON

OFF

ON

OFF

Ignition switch (IG)

Headlamp LO or HI relay

Windshield washer switch

Headlamp washer relay

ON

OFF

AB

t

t

t: 0.8 second