Mitsubishi Outlander (2003+). Manual — part 437

DIAGNOSTIC TROUBLE CODE PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-37

Step 6. Check that the hazard warning lamps
illuminate.

When the ignition switch is turned to the LOCK
(OFF) position, check if the hazard warning lamps
illuminate.

Q: Is the check result normal?

YES :

Refer to diagnosis code No.12 "Column

switch fault or improper connection

P.54B-18

."

NO :

Refer to inspection procedure A-2 "Check
the ETACS-ECU battery power supply
circuit

P.54B-52

."

Diagnosis code 31: Open circuit in signal line between the SRS-ECU and the ETACS-ECU (impact
detection signal)
Diagnosis code 32: Short circuit in signal line between the SRS-ECU and the ETACS-ECU (impact
detection signal)

CAUTION

Whenever the ECU is replaced, ensure that the
input signal circuit is normal.

DIAGNOSIS CODE SET CONDITIONS
If the voltage in the signal line between the
SRS-ECU and the ETACS-ECU has exceeded 4.6 V
for 40 milliseconds or more, the ETACS-ECU will set
diagnosis code No.31 as an open circuit. If the signal
line voltage has reached 1.5 V or less for at least 2.5
seconds, the ETACS-ECU will set diagnosis code
No.32 as a short circuit. If the ignition switch is turned
off, the ETACS-ECU will stop sending the diagnosis
code.

POSSIBLE CAUSES

•

Malfunction of the SRS-ECU

•

Malfunction of the ETACS-ECU

•

Damaged harness wires and connectors

DIAGNOSTIC PROCEDURE

Step 1. Use the MUT-II/III to confirm a diagnosis
code.

Check that the SRS-ECU sets a diagnosis code.

Q: Is the check result normal?

YES :

Go to Step 2.

NO :

Refer to GROUP 52B

−

Troubleshooting

P.52B-11

.

Wire colour code
B : Black LG : Light green
G : Green L : Blue
W : White Y : Yellow
SB : Sky blue BR : Brown
O : Orange GR : Gray
R : Red P : Pink V : Violet

IMPACT-DEPENDENT
DOOR UNLOCK
SIGNAL PROCESSING
CIRCUIT

SRS-ECU

ETACS-ECU

DIAGNOSTIC TROUBLE CODE PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-38

Step 2. Connector check: C-115 SRS-ECU
connector and C-220 ETACS-ECU connector

Q: Is the check result normal?

YES :

Go to Step 3.

NO :

Repair the defective connector.

Step 3. Measure the resistance at the C-115
SRS-ECU connector.

(1) Disconnect the connector, and measure at the

wiring harness side.

(2) Resistance between C-115 SRS-ECU connector

terminal No.15 and body earth

OK: 2

Ω

or less

Q: Is the check result normal?

YES :

Go to Step 5.

NO :

Go to Step 4.

AC308718

Connector: C-115 <LHD>

AH

C-115(Y)

1110 9

1

2

3

1413

12

4

5

6

16

8

15

7

17

18

19

20

Harness side

AC308722

Connector: C-220

Junction block (Rear view)

AF

Harness side

28

37

43

29

44

38

23

32

41

24

25

26

27

34

42

3635

33

21

22

30

39

40

31

<LHD>

AC308735

Connector: C-115
<RHD>

AL

C-115(Y)

1110 9

1

2

3

1413

12

4

5

6

16

8

15

7

17

18

19

20

Harness side

AC308776

Connector: C-220

Junction block (Rear view)

AD

Harness side

28

37

43

29

44

38

23

32

41

24

25

26

27

34

42

3635

33

21

22

30

39

40

31

<RHD>

AC308718

Connector: C-115 <LHD>

AH

C-115(Y)

1110 9

1

2

3

1413

12

4

5

6

16

8

15

7

17

18

19

20

Harness side

AC308735

Connector: C-115
<RHD>

AL

C-115(Y)

1110 9

1

2

3

1413

12

4

5

6

16

8

15

7

17

18

19

20

Harness side

AC301541 AQ

Connector C-115
(Harness side)

1110 9

1

2

3

1413

12

4

5

6

16

8

15

7

17

18

19

20

DIAGNOSTIC TROUBLE CODE PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-39

Step 4. Check the wiring harness between C-115
SRS-ECU connector terminal No.15 and body
earth.

•

Check the earth wires for open circuit.

Q: Is the check result normal?

YES :

The trouble can be an intermittent

malfunction (Refer to GROUP 00

−

How to

Cope with Intermittent Malfunction

P.00-6

).

NO :

Repair the wiring harness.

Step 5. Check the wiring harness between C-220
ETACS-ECU connector terminal No.29 and C-115
SRS-ECU connector terminal No.14.

•

Check the communication lines for open circuit.

Q: Is the check result normal?

YES :

Go to Step 6.

NO :

Repair the wiring harness.

AC308718

Connector: C-115 <LHD>

AH

C-115(Y)

1110 9

1

2

3

1413

12

4

5

6

16

8

15

7

17

18

19

20

Harness side

AC308735

Connector: C-115
<RHD>

AL

C-115(Y)

1110 9

1

2

3

1413

12

4

5

6

16

8

15

7

17

18

19

20

Harness side

AC308718

Connector: C-115 <LHD>

AH

C-115(Y)

1110 9

1

2

3

1413

12

4

5

6

16

8

15

7

17

18

19

20

Harness side

AC308722

Connector: C-220

Junction block (Rear view)

AF

Harness side

28

37

43

29

44

38

23

32

41

24

25

26

27

34

42

3635

33

21

22

30

39

40

31

<LHD>

AC308735

Connector: C-115
<RHD>

AL

C-115(Y)

1110 9

1

2

3

1413

12

4

5

6

16

8

15

7

17

18

19

20

Harness side

AC308776

Connector: C-220

Junction block (Rear view)

AD

Harness side

28

37

43

29

44

38

23

32

41

24

25

26

27

34

42

3635

33

21

22

30

39

40

31

<RHD>

DIAGNOSTIC TROUBLE CODE PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-40

Step 6. Check whether the diagnosis code is
reset.

Replace the ETACS-ECU, and then check that the
diagnosis code is not reset.
(1) Replace the ETACS-ECU.
(2) Ignition switch: ON

(3) Check that diagnosis code No.31 or 32 is not

reset.

Q: Is diagnosis code No.31 or 32 set?

YES :

Replace the SRS-ECU.

NO :

The procedure is complete.