Mitsubishi Galant 9G. Manual — part 139

CHECK AT ECU TERMINAL

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SIMPLIFIED WIRING SYSTEM (SWS)

54B-552

COLUMN SWITCH

5

4

3

2

1

10

9

8

7

6

ACX01512

C-309

AB

TERMINAL
NO.

INSPECTION ITEM

INSPECTION CONDITION

NORMAL VALUE

1

Battery power supply

Always

Battery positive voltage

2

Input of data request signal

Always

0

− 12 V (pulse signal)

3

SWS communication line

Always

0

− 12 V (pulse signal)

4

Ground

Always

0 V

5

−

−

−

6

Output of signal from variable
intermittent wiper control switch:
"FAST" to "SLOW"

Igniting switch: "ACC,"
Variable intermittent wiper
control switch: "FAST" to
"SLOW"

0

→ 2.5 V

7

−

−

−

8

Output of backup signal from
windshield wiper switch

Windshield low-speed wiper
switch or windshield high-speed
wiper switch: ON

0 V

9

Power supply to ignition switch
(IG1)

Ignition switch: "ON"

Battery positive voltage

10

Output of backup signal from
headlight switch

Ignition switch: "ON,"
Headlight switch: ON

0 V

CHECK AT ECU TERMINAL

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-553

FRONT-ECU

NOTE: Terminal voltages cannot be measured as the
front-ECU is installed directly on the relay box.
Therefore, this information is only for reference.

1

3

2

4

10

7

5 6

8 9

11

2122

25

2324

2627

30

2829

31

AC210659

A-11X

A-12X

AB

TERMINAL
NO.

INSPECTION ITEM

INSPECTION CONDITION

NORMAL VALUE

1

Output to fog light relay

When the fog lights are on

Battery positive voltage

2

Output to headlight (high-beam) When headlights (high-beam)

are on

Battery positive voltage

3, 4

Battery power supply (for
headlight)

Always

Battery positive voltage

5

Battery power supply (for
taillight)

Always

Battery positive voltage

6

Output to headlight (low-beam)

When headlights (low-beam) are
on

Battery positive voltage

7

Battery power supply (for ECU)

Always

Battery positive voltage

8

Output to taillights

When taillights are on

Battery positive voltage

9

− 11

−

−

−

21

Output to windshield washer

When windshield washer is on

Battery positive voltage

22

SWS communication line

Always

0

− 12 V (pulse signal)

23

Input of automatic stop signal to
windshield wiper

When windshield wiper is on

Battery positive voltage

24

Power supply to ignition switch
(ACC)

Ignition switch: "ACC"

Battery positive voltage

25

Input of backup signal from
headlight switch

Headlight switch: ON

0 V

26

Input of backup signal to
windshield wiper

Windshield low-speed wiper
switch or windshield high-speed
wiper switch: ON

0 V

27

Output to windshield wiper
(low-speed)

When windshield wiper is on (at
low speed)

Battery positive voltage

28

Output to windshield wiper
(high-speed)

When windshield wiper is on (at
high speed)

Battery positive voltage

30

Power supply to ignition switch
(IG2)

Ignition switch: "ON"

Battery positive voltage

31

Ground

Always

0 V

CHECK AT ECU TERMINAL

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SIMPLIFIED WIRING SYSTEM (SWS)

54B-554

SUNROOF-ECU

AC306356

D-04

AB

TERMINAL
NO.

INSPECTION ITEM

INSPECTION CONDITION

NORMAL VALUE

1

Battery power supply (for motor) Always

Battery positive voltage

2

Power supply to ignition switch
(IG2)

Ignition switch: ON

Battery positive voltage

3, 4

−

−

−

5

Ground

Always

0 V

6

Input signal ("CLOSE/DOWN")
from the sunroof switch

Sunroof switch: "CLOSE/DOWN" 0 V

7

Input signal ("UP") from the
sunroof switch

Sunroof switch: "UP"

0 V

8

Input signal ("OPEN") from the
sunroof switch

Sunroof switch: "OPEN"

0 V

9

−

−

−

10

SWS communication line

Always

0

− 12 V (pulse signal)

ON-VEHICLE SERVICE

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SIMPLIFIED WIRING SYSTEM (SWS)

54B-555

ON-VEHICLE SERVICE

CONFIGURATION FUNCTION

M1549002500861

ADJUSTMENT BY OPERATING THE
MULTI CENTER DISPLAY <VEHICLES
WITH MIDDLE-GRADE MULTI CENTER
DISPLAY ONLY>

The following function and system customizations
are possible by using the multi center display.

AC207102 AB

KEEP PRESSING THE "DISP" BUTTON WHILE THE CENTER DISPLAY OPERATES.

SELECT "3. Next menu".

SELECT "3. Display settings".

SELECT "Customization".

SELECT ANY ITEM YOU
WANT TO CUSTOMIZE.

SELECT "Default" WHEN
INITIALIZING ALL FUNCTIONS.

SELECT ANY FUNCTION YOU WANT TO CUSTOMIZE.

INITIALIZE ALL FUNCTIONS TO THE ORIGINAL
FACTORY SETTINGS.