Mitsubishi Grandis. Manual — part 141

TROUBLESHOOTING

SMART WIRING SYSTEM (SWS) USING SWS MONITOR

54C-26

BUZZER

NOTE: The headlamp automatic-shutdown function works in approximately one second after the lighting
monitor buzzer starts sounding, and then the buzzer ceases sounding.

Power windows

Keyless entry system

Item

Input signal

Item No. Display on MUT-III

Normal condition

Lighting
monitor buzzer

Headlamp switch

00

HEADLAMP SW

Either is on

Tail lamp switch

01

TAIL LAMP SW

Ignition switch
(IG1)

30

IGNITION SW IG1

OFF

Driver's door switch 32

DRIVER DOOR SW

ON

Headlamp
automatic-shutdow
n function

35

HD LAMP AUTOCUT

OFF

Buzzer

43

Buzzer

ON

Item

Input signal

Item No. Display on MUT-III

Normal condition

Power windows Ignition switch

(IG1)

30

IG SW IG1

ON

Reception of power
window switch

33

P/W SWACCEPT

PERMIT

Response by
power window
module

71

P/W ECU ACK

INPUT CHECK (only
momentarily when switch is
operated)

Item

Input signal

Item No. Display on MUT-III

Normal condition

Multi-close

Reception of power
window switch

33

P/W SW ACCEPT

PERMIT

Multimode keyless
entry system

34

KEYLESS ENTRY

Multi-close (only
momentarily when switch is
operated)

Response by
power window
module

71

P/W ECU ACK

NORMAL ACK or
P/WLOCK ACK

Response by the
sunroof-ECU

72

S/R ECU ACK

NORMAL ACK to INPUT
CHECK (only when the
switch is operated)

TROUBLESHOOTING

SMART WIRING SYSTEM (SWS) USING SWS MONITOR

54C-27

Sunroof

ETACS SWITCH DATA CHART

Item

Input signal

Item No. Display on MUT-III

Normal condition

SUNROOF
OPE.

Ignition switch
(IG1)

30

IG SW (IG1)

ON

Response by
power window
module

71

P/W ECU ACK

NORMAL ACK

Response by the
sunroof-ECU

72

S/R ECU ACK

INPUT CHECK (only
momentarily when switch is
operated)

REAR S/R
LOCK

Ignition switch
(IG1)

30

IG SW (IG1)

ON

Buzzer

43

BUZZER

ON

Response by
power window
module

71

P/W ECU ACK

P/W LOCK ACK

Response by the
sunroof-ECU

72

S/R ECU ACK

BUZZER ACK

Item No. Check items

Display on
MUT-III

Check conditions

Normal
condition
s

01

*

Specification
switching terminal

SPEC.SW 1

OFF:Vehicles for Europe

OFF

02

*

Specification
switching terminal

SPEC.SW 2

ON: Vehicles for Europe

ON

03

Key reminder
switch

KEY REMIN SW Key reminder switch: ON (when the ignition

key is pulled off)

ON

Key reminder switch: OFF (Insert the
ignition key)

OFF

04

Hazard warning
lamp switch

HAZARD LMP
SW

Hazard warning lamp switch: ON (when the
switch is operated)

ON

Hazard warning lamp switch: ON (when the
switch is not operated)

OFF

05

Passenger's door
switch

PASS DOOR SW Front passenger's door: open

ON

Front passenger's door: Closed

OFF

07

Tailgate switch

TRK LID LA SW

Tailgate: OPEN

ON

Tailgate: CLOSE

OFF

09

Rear wiper
auto-stop switch

R.WIPER
A/STOP

When rear wiper is operating

ON

When the rear wiper is not working

OFF

10

Front fog lamp
switch

F.FOG LAMP SW Fog lamp switch: ON (when the switch is

operated)

ON

Fog lamp switch: ON (when the switch is not
operated)

OFF

TROUBLESHOOTING

SMART WIRING SYSTEM (SWS) USING SWS MONITOR

54C-28

11

Rear fog lamp
switch

R.FOG LAMP
SW

Fog lamp switch: ON (when the switch is
operated)

ON

Fog lamp switch: ON (when the switch is not
operated)

OFF

12

Driver’s seatbelt
switch

SEAT BELT SW

Seat belt switch: ON (when the seat belt is
unfastened)

ON

Seat belt switch: OFF (when the seat belt is
fastened)

OFF

14

Electric
remote-controlled
door mirror
(folding/unfolding )
switch

EL RET MIR SW Electric remote-controlled door mirror

(folding/unfolding ) switch: ON (when the
switch is operated)

ON

Electric remote-controlled door mirror
(folding/unfolding ) switch: ON (when the
switch is not operated)

OFF

18

Tailgate key unlock
switch

TRK UNLOCK
SW

Tailgate key unlock switch: ON (when the
key is turned)

ON

Tailgate key unlock switch: OFF

OFF

19

Tailgate key lock
switch

GATE LOCK SW Tailgate key lock switch: ON (when the key

is turned)

ON

Tailgate key lock switch: OFF

OFF

21

Driver's door lock
actuator lock
switch

DR DOR LCK
SW

Driver's door: Locked

ON

Driver's door: Other than "locked"

OFF

22

Driver's door lock
actuator unlock
switch

DR DOR ULK
SW

Driver's door: Unlocked

ON

Driver's door: Other than "Unlocked"

OFF

26

Central door
locking

CNTR DOOR
LCK

When the central door locking operates

ON

When the central door locking does not
operate

OFF

27

Central door
unlock

CNTR DOOR
ULCK

When the central door unlocking operates

ON

When the central door unlocking does not
operate

OFF

30

Tailgate lock
release handle
switch

GTE OPENER
SW

Tailgate lock release handle switch: When
being operated

ON

Tailgate lock release handle switch: When
not being operated

OFF

31

Room lamp "ON"
switch

RM LMP ON SW Room lamp "ON" switch: ON

ON

Room lamp "ON" switch: OFF

OFF

32

Room lamp
"ON/OFF" switch

RM LMP OFF
SW

Room lamp "OFF" switch: ON

ON

Room lamp "OFF" switch: OFF

OFF

35

DRL changeover
terminal

DRL

When DRL is equipped: ON

ON

When DRL is not equipped: OFF

OFF

Item No. Check items

Display on
MUT-III

Check conditions

Normal
condition
s

TROUBLESHOOTING

SMART WIRING SYSTEM (SWS) USING SWS MONITOR

54C-29

*

: Market can be changed by combination of item Nos. 01 and 02.

ETACS ANALOGUE DATA CHART

PULSE CHECK

M1549015100410

CAUTION

Before connecting or disconnecting the MUT-III,
turn the ignition switch to the "LOCK" (OFF)
position.

1. The input signals (signals other than

communication line signals), which are
compatible with the SWS monitor by using the
MUT-III or voltmeter, can be confirmed by the
Pulse Check.

NOTE: If a problem is found in the "Pulse Check",

refer to the Problems during Input Signal Check
<Service data, function diagnosis or pulse
check> (Refer to

P.54C-48

).

2. Use the MUT-III or voltmeter to check the

following input signals.

36

Diagnosis
connector

MUT DIAG CON. Diagnosis control line: Earthed

ON

Diagnosis control line: Not earthed

OFF

41

Rear door (RH)
switch

R.DOOR(RH)SW Rear door (RH): open

ON

Rear door (RH): Closed

OFF

42

Rear door (LH)
switch

R.DOOR(LH)SW Rear door (LH): open

ON

Rear door (LH): Closed

OFF

43

Front passenger's
seat belt switch

As.SeatBeltSW

Front passenger's seat belt switch: ON
(when the seat is occupied but the seat belt
is unfastened)

ON

Front passenger's seat belt switch: OFF
(when the seat belt is fastened)

OFF

Item No. Check items

Display on
MUT-III

Check conditions

Normal
condition
s

Item No. Check items

Display on MUT-III

How to check

02

Windshield
intermittent wiper
volume

WPR VOL VOLT

Displays the voltage in the windshield wiper
intermittent volume.
Changes in accordance with the position of the
windshield wiper intermittent volume.

03

Vehicle speed signal SPEED SENSER

Displays the vehicle speed
Changes in accordance with the vehicle speed.

04

Room lamp timer
period

RM LMP TIMER

Displays room lamp timer period.

05

Headlamp automatic
shutdown timer
period

H/L A.CUT TMR

Displays headlamp automatic shutdown period
(timing).

06

Power window
key-off timer period

P/W KY OF TMR

Displays power window key-off timer period
(timing).

08

Windshield
intermittent wiper
interval

WPR INT TIME

Displays windshield intermittent wiper interval (with
chart)
Changes according to the windshield wiper
intermittent volume position and the vehicle speed.