Mitsubishi Outlander (2003+). Manual - part 437

 

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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 

 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.

 

 

 

 

 

 

 

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