Mitsubishi Grandis. Manual — part 139

TROUBLESHOOTING

SMART WIRING SYSTEM (SWS) USING SWS MONITOR

54C-18

NOTE: For item number 43 "BUZZER", the MUT-III also displays "ON" when the lamp reminder buzzer is
triggered.

FRONT-ECU

NOTE: For item number 70, the MUT-III also displays "NG" under the "ECU Check" when it displays "No
response" under the front-ECU check.

42

Wiper
activation
command

WIPER ON
COM

Set

YES

Not set

NO

43

Buzzer

BUZZER

1. Ignition switch: LOCK (OFF) position
2. Tail lamp or headlamp switch: ON
3. Driver's door switch: ON (driver's door

open)

ON

When requirements for sounding each
warning buzzer are not satisfied

OFF

52

Support for
rear sunroof
lock

REAR S/R
LOCK

Action

SUPPORT

Not supported

NON SUPPORT

53

Headlamp
washer
operation
period

HD WASH
TIME

0.5 seconds

0.5s Spec

0.8 seconds

0.8s Spec

54

Intermittent
wiper
operation
period

INT TIME
SPEC

Maximum 32 seconds

MAX.32s Spec

Maximum 19 seconds

MAX.19s Spec

56

Washer-linke
d wiper

WIP-LINK
WASH

Set

EQUIP

Not set

NONE

Item No. Check item

Display on
MUT-III

Check condition

Normal condition

Item No. Check item

Display on
MUT-III

Check condition

Normal condition

70

Response by
the
front-ECU

Front ECU
response

Lighting switch: Other than OFF (excluding
when high-beam is on) or the wiper switch
is at position other than OFF

Normal response

• Ignition switch: ON or START

• Lighting switch: OFF

• Lighting switch: OFF

SLEEP
RESPONSE

• Lighting switch: HEAD

• Headlamps: at high beam

HI BEAM
RESPONSE

−

No response

TROUBLESHOOTING

SMART WIRING SYSTEM (SWS) USING SWS MONITOR

54C-19

POWER WINDOW MAIN SWITCH
(POWER WINDOW MODULE)

NOTE: For item number 71, the MUT-III also displays "NG" under the "ECU CHECK" when it displays "NO
ACK" under the "P/W ECU ACK" check.

Sunroof motor assembly (sunroof-ECU)

NOTE: For item number 72 "S/R ECU ACK", the MUT-II also displays "NG" under the "ECU Check" when it
displays "NO ACK" under the "S/R ECU ACK" check.

COMMUNICATION BETWEEN DOORS

Item No. Check item

Display on
MUT-III

Check condition

Normal condition

71

Response
from power
window
module

P/W ECU ACK Ignition switch: ON or START

NORMAL ACK

1. Ignition switch: ON or START
2. Operate any switch of the power window

main switch.

INPUT CHECK
(only momentarily
when switch is
operated)

−

NO ACK

Item No. Check item

Display on
MUT-III

Check condition

Normal condition

72

Response by
the
sunroof-ECU

S/R ECU ACK

1. Ignition switch: from ON to OFF
2. While sunroof is off

NORMAL ACK to
SLEEP ACK (after
approximately 30
seconds)

1. Ignition switch: ON or START
2. Sunroof switch: Any button of the switch

is on

INPUT CHECK to
NORMAL ACK

−

NO ACK

Item No. Check item

Display on
MUT-III

Check condition

Normal condition

C0

Front
passenger's
power
window UP
switch

PASS DOR UP Front passenger's power window switch:

UP

ON

Front passenger's power window switch:
Other than "UP"

OFF

C1

Front
passenger's
power
window
DOWN
switch

PASS DOR
DOWN

Front passenger's power window switch:
DOWN

ON

Front passenger's power window switch:
Other than "DOWN"

OFF

C2

Front
passenger's
power
window
AUTO switch

PASS DOR
AUTO

Front passenger's power window switch:
AUTO

ON

Front passenger's power window switch:
Other than "AUTO"

OFF

TROUBLESHOOTING

SMART WIRING SYSTEM (SWS) USING SWS MONITOR

54C-20

NOTE: Service data of door communication will be sent from the power window main switch to the door
communication line. Therefore, the display will remain "OFF" unless the probe is inserted.

FUNCTION DIAGNOSIS

The table below shows the service data and their
normal condition, which are displayed during the
"FUNCTION DIAG." The row "Normal condition"
shows values, which are shown when each
operation is made.

C4

Rear right
power
window UP
switch

REAR RH UP

Rear right power window switch: UP

ON

Rear right power window switch: Other than
"UP"

OFF

C5

Rear right
power
window
DOWN
switch

REAR RH
DOWN

Rear right power window switch: DOWN

ON

Rear right power window switch: Other than
"DOWN"

OFF

C6

Rear right
power
window
AUTO switch

REAR RH
AUTO

Rear right power window switch: AUTO

ON

Rear right power window switch: Other than
"AUTO"

OFF

C8

Rear left
power
window UP
switch

REAR LH UP

Rear left power window switch: UP

ON

Rear left power window switch: Other than
"UP"

OFF

C9

Rear left
power
window
DOWN
switch

REAR LH
DOWN

Rear left power window switch: DOWN

ON

Rear left power window switch: Other than
"DOWN"

OFF

CA

Rear left
power
window
AUTO switch

REAR LH
AUTO

Rear left power window switch: AUTO

ON

Rear left power window switch: Other than
"AUTO"

OFF

CB

Power
window lock
switch

P/W LOCK SW Power window lock switch: ON

ON

Power window lock switch: OFF

OFF

CE

Reception of
power
window
switch

P/W SW
RECEPT

Ignition switch: ON or START

PERMIT

Ignition switch: from ON or START to LOCK
(OFF) or ACC

from PERMIT to
PROHIBIT (after
approximately 30
seconds)

CF

Ignition
switch (IG1)

IG1

Ignition switch: ON or START

ON

Ignition switch: LOCK (OFF) or ACC

OFF

Item No. Check item

Display on
MUT-III

Check condition

Normal condition

TROUBLESHOOTING

SMART WIRING SYSTEM (SWS) USING SWS MONITOR

54C-21

WIPER

Item

Input signal

Item No. Display on MUT-III

Normal condition

F.WIPER INT
(intermittent)

Windshield
intermittent wiper
switch

05

INT WIPER SW

ON

Windshield
low-speed wiper
switch

06

LO WIPER SW

OFF

Windshield
high-speed wiper
switch

07

HI WIPER SW

OFF

Wind shield mist
wiper switch

08

MIST WIPER SW

OFF

Windshield washer
switch

09

FRONT WASH. SW

OFF

Ignition switch
(ACC)

31

IG SW(ACC)

ON

Windshield
intermittent wiper
interval

37

WIPER INT TIME

The MUT-III displays
intermittent wiper interval in
response to the intermittent
wiper control positions

Response by the
front-ECU

70

FRONT ECU ACK

NORMAL ACK or HI-BEAM
ACK

F.WIPER LO
(low speed)

Windshield
intermittent wiper
switch

05

INT WIPER SW

OFF

Windshield
low-speed wiper
switch

06

LO WIPER SW

ON

Windshield
high-speed wiper
switch

07

HI WIPER SW

OFF

Wind shield mist
wiper switch

08

MIST WIPER SW

OFF

Windshield washer
switch

09

FRONT WASH. SW

OFF

Ignition switch
(ACC)

31

IG SW(ACC)

ON

Response by the
front-ECU

70

FRONT ECU ACK

NORMAL ACK or HI-BEAM
ACK