Mitsubishi Galant (2004+). Manual — part 207

SWS DIAGNOSIS

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-19

ETACS

NOTE: For item No. 43, the scan tool MB991958
(MUT-III Sub Assembly) also displays "ON" when the
light reminder tone alarm or the seat belt tone alarm
function is triggered.

.

CHECK
ITEM

ITEM NO. DISPLAY ON

SCAN TOOL

CHECK CONDITION

NORMAL
CONDITION

Tone alarm

43

BUZZER

1. Ignition switch: LOCK (OFF)
2. Key reminder switch: ON
3. Front door switch: ON (front door open)

ON

When requirements for sounding each
warning tone alarm are not satisfied

OFF

Front fog
lights

36

F.FOG LIGHT

1. Lighting switch: HEAD
2. Fog light switch: ON

ON

Other than the condition above

OFF

Driver’s door
switch

32

FRONT DOOR
SW

Driver’s door switch and Front passenger’s
door switch is on

ON

Driver’s door switch and Front passenger’s
door switch is off

OFF

Headlight
automatic
shutoff
function

35

H/L AUTO-CUT 1. Lighting switch: Other than OFF

2. Ignition switch: from ON or START to

LOCK (OFF) or ACC

3. Front door switch: ON (front door open)

OFF to ON (after
approximately one
second)

When requirements for the headlight
automatic shutoff are not satisfied

OFF

Ignition
switch (ACC)

31

IG SW (ACC)

Ignition switch: ACC or ON

ON

Ignition switch: LOCK (OFF) or START

OFF

Ignition
switch (IG1)

30

IG SW (IG1)

Ignition switch: ON or START

ON

Ignition switch: LOCK (OFF) or ACC

OFF

Windshield
intermittent
wiper interval

37

INT WIPE
TIME

1. Ignition switch: ACC or ON
2. Operate the intermittent wiper control,

and change the wiper interval

The scan tool
MB991958
(MUT-III Sub
Assembly)
displays
intermittent wiper
interval in
response to the
intermittent wiper
control positions.

SWS DIAGNOSIS

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-20

Front-ECU, P/W, S/R

NOTE: For item No. 70, the scan tool MB991958
(MUT-III Sub Assembly) also displays "NG" under
"ECU COMM Check" when it displays "NO ACK"
under the front-ECU check.

NOTE: For item No. 72, the scan tool MB991958
(MUT-III Sub Assembly) also displays "NG" under
"ECU COMM Check" when it displays "NO ACK"
under the sunroof-ECU check.

CHECK
ITEM

ITEM NO. DISPLAY ON

SCAN TOOL

CHECK CONDITION

NORMAL
CONDITION

Response by
the
front-ECU

70

FRONT ECU
ACK

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

NORMAL ACK

• Ignition switch: Other than ON

• Lighting switch: OFF

• Wiper switch: OFF

SLEEP ACK

• Lighting switch: HEAD

• Headlights: at high beam

HI-BEAM ACK

Other than the condition above

NO ACK

Response by
the
sunroof-ECU

72

S/R ECU ACK

1. Door switch: OFF
2. Ignition switch: ON

→ OFF

3. While sunroof is off

NORMAL ACK

→

SLEEP ACK (after
approximately 30
seconds)

1. Ignition switch: ON or START
2. One of the sunroof switches is on

INPUT CHECK to
NORMAL ACK

Other than the above conditions

NO ACK

SWS DIAGNOSIS

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-21

<FUNCTION DIAGNOSIS>

The table below shows the service data and their
normal condition, which are displayed during the
"Function Diag." The column "Normal condition"
shows values that are shown when each operation is
made.

.

WIPER

ITEM

ITEM NO. INPUT SIGNAL

DISPLAY ON SCAN TOOL NORMAL CONDITION

F.WIPER HI

05

Windshield
intermittent wiper
switch

INT WIPER SW (COLUMN
ECU)

OFF

06

Windshield
low-speed wiper
switch

LO WIPER SW (COLUMN
ECU)

OFF

07

Windshield
high-speed wiper
switch

HI WIPER SW (COLUMN
ECU)

ON

08

Windshield mist
wiper switch

MIST WIPER SW
(COLUMN ECU)

OFF

09

Windshield washer
switch

FRONT WASH.SW
(COLUMN ECU)

OFF

31

Ignition switch
(ACC)

IG SW (ACC) (ETACS ECU) ON

70

Response by the
front-ECU

FRONT ECU ACK (FRONT
ECU)

NORMAL ACK or HI-BEAM
ACK

F.WIPER INT

05

Windshield
intermittent wiper
switch

INT WIPER SW (COLUMN
ECU)

ON

06

Windshield
low-speed wiper
switch

LO WIPER SW (COLUMN
ECU)

OFF

07

Windshield
high-speed wiper
switch

HI WIPER SW (COLUMN
ECU)

OFF

08

Windshield mist
wiper switch

MIST WIPER SW
(COLUMN ECU)

OFF

09

Windshield washer
switch

FRONT WASH.SW
(COLUMN ECU)

OFF

31

Ignition switch
(ACC)

IG SW (ACC) (ETACS ECU) ON

37

Windshield
intermittent wiper
interval

INT WIPE TIME (ETACS
ECU)

The scan tool MB991958
(MUT-III Sub Assembly)
displays intermittent wiper
interval in response to the
intermittent wiper control
positions.

70

Response by the
front-ECU

FRONT ECU ACK (FRONT
ECU)

NORMAL ACK or HI-BEAM
ACK

SWS DIAGNOSIS

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-22

.

F.WIPER LO

05

Windshield
intermittent wiper
switch

INT WIPER SW (COLUMN
ECU)

OFF

06

Windshield
low-speed wiper
switch

LO WIPER SW (COLUMN
ECU)

ON

07

Windshield
high-speed wiper
switch

HI WIPER SW (COLUMN
ECU)

OFF

08

Windshield mist
wiper switch

MIST WIPER SW
(COLUMN ECU)

OFF

09

Windshield washer
switch

FRONT WASH.SW
(COLUMN ECU)

OFF

31

Ignition switch
(ACC)

IG SW (ACC) (ETACS ECU) ON

70

Response by the
front-ECU

FRONT ECU ACK (FRONT
ECU)

NORMAL ACK or HI-BEAM
ACK

F.WIPER MIST 05

Windshield
intermittent wiper
switch

INT WIPER SW (COLUMN
ECU)

OFF

06

Windshield
low-speed wiper
switch

LO WIPER SW (COLUMN
ECU)

OFF

07

Windshield
high-speed wiper
switch

HI WIPER SW (COLUMN
ECU)

OFF

08

Windshield mist
wiper switch

MIST WIPER SW
(COLUMN ECU)

ON

09

Windshield washer
switch

FRONT WASH.SW
(COLUMN ECU)

OFF

31

Ignition switch
(ACC)

IG SW (ACC) (ETACS ECU) ON

70

Response by the
front-ECU

FRONT ECU ACK (FRONT
ECU)

NORMAL ACK or HI-BEAM
ACK

F.WIPER
WASH

08

Windshield mist
wiper switch

MIST WIPER SW
(COLUMN ECU)

OFF

09

Windshield washer
switch

FRONT WASH.SW
(COLUMN ECU)

ON

31

Ignition switch
(ACC)

IG SW (ACC) (ETACS ECU) ON

70

Response by the
front-ECU

FRONT ECU ACK (FRONT
ECU)

NORMAL ACK or HI-BEAM
ACK

ITEM

ITEM NO. INPUT SIGNAL

DISPLAY ON SCAN TOOL NORMAL CONDITION