Mitsubishi Colt Ralliart. Manual - part 372

INPUT SIGNAL PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-232

Step 4. Connector check: B-132 ETACS-ECU 
connector.

Q: Is the check result normal?

YES : 

Go to Step 5.

NO : 

Repair the defective connector.

Step 5. Check the wiring harness between B-132 
ETACS-ECU connector terminal No.38 to C-19 
door switch (front: LH) connector terminal No.1.

• Check the input line for open circuit.

Q: Is the check result normal?

YES : 

Go to Step 6.

NO : 

Repair the wiring harness.

Step 6. Retest the system.
Check that the door switch (front: LH) signal is 
received normally.

Q: Is the check result normal?

YES : 

The trouble can be an intermittent 

malfunction (Refer to GROUP 00 

− How to 

use Troubleshooting/inspection Service 
Points 

− How to Cope with Intermittent 

Malfunction 

P.00-13

).

NO : 

Replace the ETACS-ECU.

AC313872BE

Connector: B-132

Harness side

Junction block (Rear view)

AC313872BE

Connector: B-132

Harness side

Junction block (Rear view)

AC401059

Connector: C-19

AG

Harness side

Main

Index

Group

TOC

CHECK AT ECU TERMINAL

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-233

CHECK AT ECU TERMINAL

M1549001201086

ETACS-ECU

NOTE: Terminal numbers 1 to 20 can not be measured as the ETACS-ECU is mounted on the junction block 
directly. The values are for reference only.

AC207565

3

1

2

14

4

5

7

6

8

11

10

9

13

12

17

15 16

18 19 20

38

44

36

35

42 43

37

26 27

29

28

33

31

40 41

32

23

22

24 25

34

39

30

21

58 59

74

68

57

56

72

65 66 67

73

54

63

52

70

61

53

62

71

64

55

51

60

69

AB

B-134

B-132

B-133

Terminal 
No.

Check item

Check condition

Normal condition

1

Power supply to the central door 
locking system (battery positive 
voltage)

Always

System voltage

2

Earth (for ECU)

Always

0 V

3

Output to left turn-signal lamps

When the left turn-signal lamps 
are on

System voltage

4

Output to right turn-signal lamps

When right turn-signal lamps are 
on

System voltage

5

Power supply to hazard warning 
lamp (battery positive voltage)

Always

System voltage

6

Input of windshield wiper automatic 
stop signal

When windshield wiper is 
operating

System voltage

7

Output to windshield wiper (high 
speed operation)

When windshield wipers are 
operating at high speed

System voltage

8

Output to windshield wiper (low 
speed operation)

When windshield wipers are 
operating at low speed

System voltage

9

Windshield washer output

When windshield washer is 
operating

System voltage

10

Ignition switch (ACC)

Ignition switch: ACC

System voltage

11

Ignition switch (ACC)

Ignition switch: ACC

System voltage

12

Rear washer output

When rear washer is operating

System voltage

13

Rear wiper output

When rear wiper is operating

System voltage

14

Input of rear wiper automatic stop 
signal

When rear wiper is operating

System voltage

15

Output to tail lamps

When tail lamps are on

System voltage

16

Battery power supply (for tail lamp) Always

System voltage

17

Output to low-beam headlamps

When low-beam headlamps are 
on

System voltage

18

Output to room lamp

When room lamps are on

2 V or less

19

Output to high-beam headlamps

When high-beam headlamps are 
on

System voltage

Main

Index

Group

TOC

CHECK AT ECU TERMINAL

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-234

20

Battery power supply (for ECU)

Always

System voltage

21

Output to electric retractable remote 
controlled mirror (RH)

When the door mirrors are 
unfolding

12 V

22

Output to central door locking (for 
unlocking the doors other than the 
driver's door)

When the door lock actuators 
unlock the doors

System voltage

23

Output to central door locking (for 
locking the doors)

When the door lock actuators lock 
the doors

System voltage

24, 25

−

−

−

26

Input to driver's door lock actuator 
(lock switch)

Driver's door lock: Locked

0 V

27

Input from remote controlled mirror 
switch (fold/unfold switch)

Remote controlled mirror switch 
(fold/unfold switch): ON

0 V

28, 29

−

−

−

30

Output to electric retractable remote 
controlled mirror (LH)

When the door mirrors are 
unfolding

12 V

31 

− 34

−

−

−

35

Input to driver's door lock actuator 
(unlock switch)

Driver's door lock: Unlocked

0 V

36

Input to driver's door lock actuator 
(lock switch)

Driver's door lock: Locked

0 V

37

−

−

−

38

Input to door switch (front: LH)

Door switch (front: LH): ON (door 
open)

0 V

39

Output to electric retractable remote 
controlled mirror (RH)

When the door mirrors are folding System voltage

40

Output to electric retractable remote 
controlled mirror (LH)

When the door mirrors are folding System voltage

41

Input to driver's door lock actuator 
(unlock switch)

Driver's door lock: Unlocked

0 V

42 

− 44

−

−

−

51

Input to door switch (front: RH)

Door switch (front: RH): ON (door 
open)

0 V

52

Setting diagnosis code or sending 
input check signal

When diagnosis code is set (the 
M.U.T.-III is connected or the 
diagnosis connector No.1 is 
earthed)

0 to 12 V (pulse signal)

When input check signal is sent

0 V, 12 V (input signal 
is fluctuating)

53

Input to key reminder switch

Key reminder switch: ON (ignition 
key removed)

0 V

54

SWS communication line

Always

0 to 12 V (pulse signal)

55 

− 57

−

−

−

Terminal 
No.

Check item

Check condition

Normal condition

Main

Index

Group

TOC

CHECK AT ECU TERMINAL

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-235

58

Input to fog lamp switch

Fog lamp switch: ON

0 V

59

Out put to power window relay

When the power windows are 
operative

System voltage

60

Back-up input from headlamp 
switch

Headlamp switch: ON

0 V

61

Input from all the door switches

One of the door switches: ON 
(door open)

0 V

62

Output to ignition key cylinder 
illumination lamp

When ignition key cylinder 
illumination is on

2 V or less

63

Input of SWS request signal

Always

0 to 12 V (pulse signal)

64

Back-up input from windshield 
wiper switch

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

0 V

65, 66

−

−

−

67

Output to fog lamp

When fog lamp is on

System voltage

68

Power supply from ignition switch 
(IG1)

Ignition switch: ON

System voltage

69

Input from diagnosis control

When M.U.T.-III is connected

0 V

70

Earth (for sensor)

Always

0 V

71

Input to hazard lamp switch

Hazard lamp switch: ON

0 V

72

−

−

−

73

Input from windshield intermittent 
wiper volume

Turn the ignition switch to the 
ACC position, and move the wiper 
volume from "Fast" to "Slow."

0 to 2.5 V

74

Ignition switch (ACC)

Ignition switch: ACC

System voltage

Terminal 
No.

Check item

Check condition

Normal condition

Main

Index

Group

TOC