Mitsubishi 380. Manual — part 121

CHECK AT ECU TERMINAL

SIMPLIFIED WIRING SYSTEM (SWS)

54B-481

22

Output to door unlock (for
driver's door)

When driver's door lock actuator
is operating (doors unlocked)

Battery positive voltage

23, 24

−

−

−

25

Input of door lock key cylinder
switch (UNLOCK) signal

Door lock key cylinder switch:
UNLOCK

0 V

26

− 28

−

−

−

29

Input of rear door lock actuator
(UNLOCK) signal

Rear door lock actuator:
UNLOCK

0 V

30

Input of key reminder switch
signal

Key reminder switch: ON (when
ignition key is removed)

0 V

31, 32

−

−

−

33

Input of door lock switch (LOCK)
signal

Door lock switch (incorporated in
power window switch): LOCK

0 V

34

Input of door lock switch
(UNLOCK) signal

Door lock switch (incorporated in
power window switch): UNLOCK

0 V

35

Input from rear door switch (RH) Rear door switch (RH): ON (rear

door (RH) open)

0 V

36

Input of driver's door lock
actuator (UNLOCK) signal

Driver's door lock actuator:
UNLOCK

0 V

37

Input from trunk lid latch
assembly

Trunk lid latch: ON (trunk open)

0 V

38

Ground (for sensor)

Always

0 V

39

− 41

−

−

−

42

Input of door lock key cylinder
switch (LOCK) signal

Door lock key cylinder switch:
LOCK

0 V

43

Input of front passenger's door
lock actuator (UNLOCK) signal

Front passenger’s door lock
actuator: UNLOCK

0 V

44

Output to horn relay

When a horn sounds by the
keyless entry horn answerback
function

2 V or less

45

Output to data link connector

When DTC sets

0

− 12 V (pulse signal)

When input check signal is
output

0

− 12 V (when input

pulse signal is
fluctuating)

46

Output to trunk lamp

When trunk lid latch on.

0 V

47

−

−

−

48

Input of fog lamp switch signal

Fog lamp switch: ON

0 V

49

Input of hazard warning lamp
switch signal

Hazard warning lamp switch: ON
(When the switch is depressed)

0 V

50

Ground (for sensor)

Always

0 V

51

Key Ring Antenna (+)

0 V

0 V

52

Key Ring Antenna (-)

0 V

0 V

53

SWS communication line

Always

0

− 12 V (pulse signal)

TERMINAL
NO.

INSPECTION ITEM

INSPECTION CONDITION

NORMAL VALUE

CHECK AT ECU TERMINAL

SIMPLIFIED WIRING SYSTEM (SWS)

54B-482

54

− 58

−

−

−

59

Input from front passenger's door
switch

Front passenger's door switch:
ON (front passenger's door
open)

0 V

60

Input of signal from variable
intermittent wiper control switch

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

0

→ 2.5 V

61

Input of diagnosis indication
selection

When diagnostic tool is
connected

0 V

62

Output of data request signal

Always

0

− 12 V (pulse signal)

63

Output to ignition key hole
illumination lamp

When ignition key hole
illumination lamp is on

0 V

64

− 65

−

−

−

66

CAN HI

Always

60

± 10 Ω

67

CAN LO

Always

60

± 10 Ω

68

Output to security lamp

−

0 V

TERMINAL
NO.

INSPECTION ITEM

INSPECTION CONDITION

NORMAL VALUE

CHECK AT ECU TERMINAL

SIMPLIFIED WIRING SYSTEM (SWS)

54B-483

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
headlamp switch

Ignition switch: "ON,"
Headlamp switch: ON

0 V

CHECK AT ECU TERMINAL

SIMPLIFIED WIRING SYSTEM (SWS)

54B-484

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 lamp relay

When the fog lamps are on

Battery positive voltage

2

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

are on

Battery positive voltage

3, 4

Battery power supply (for
headlamp)

Always

Battery positive voltage

5

Battery power supply (for
taillamp)

Always

Battery positive voltage

6

Output to headlamp (low-beam)

When headlights (low-beam) are
on

Battery positive voltage

7

Battery power supply (for ECU)

Always

Battery positive voltage

8

Output to taillamps

When taillamps 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
headlamp switch

Headlamp 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