Mitsubishi Grandis. Manual - part 139

 

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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

 

 

 

 

 

 

 

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