Mitsubishi Outlander (2003+). Manual - part 370

TROUBLESHOOTING

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-79

STEP 4. Check a burned-out fuse.
(1) Replace the fuse.
(2) Turn the ignition switch to the "ON" position, wait 

for at least one minute and then turn the ignition 
switch to the "LOCK" (OFF) position.

(3) Check the fuse.

Q: Is the fuse in good condition?

YES : 

Go to Step 8.

NO : 

Go to Step 5.

STEP 5. Measure the resistance at the junction 
block connector C-205.

(1) Disconnect junction block connector C-205, and 

measure at the wiring harness side.

CAUTION

Do not insert a test probe into the terminal from 
its front side directly as the connector contact 
pressure may be weakened.
(2) Measure the resistance between terminal 7 and 

body earth.

OK: Open circuit

Q: Is the check result normal?

YES : 

Check the other circuit, which flows through 

fuse number 3.

NO : 

Go to Step 6.

AC210474

Connector: C-205 <LHD>

Harness side

AM

21

7

16 15

17

18

20 19

1

2

3

4

5

6

23 22

24

25

28

26

27

9

8

10

11

14

12

13

Junction block (Front view)

AC308772

Connector: C-205

Harness side

AC

Junction block (Front view)

<RHD>

1 2 3 4 5 6 7 8 9 10 1112 1314

1516 1718 19 20 212223 242526 2728

AC301017AB

C-205 Harness side
connector (rear view)

TROUBLESHOOTING

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-80

STEP 6. Measure the resistance at the SRS-ECU 
connector C-115.

(1) Disconnect SRS-ECU connector C-115, and 

measure at the wiring harness side.

CAUTION

Do not insert a test probe into the terminal from 
its front side directly as the connector contact 
pressure may be weakened.
(2) Measure the resistance between terminal 13 and 

body earth.

OK: Open circuit

Q: Is the check result normal?

YES : 

Erase the diagnosis code memory, and 

check the diagnosis code. If diagnosis code 
42 sets, replace the SRS-ECU. (Refer to 

P.52B-178

). Then go to Step 8     .

NO : 

Go to Step 7.

STEP 7. Connector check: SRS-ECU connector 
C-115 and junction block connector C-205

Q: Is the check result normal?

YES : 

Check the harness wire for short circuit 

between SRS-ECU connector C-115 
(terminal No.13) and junction block 
connector C-205 (terminal No.7), and repair 
if necessary. Then go to Step 8.

NO : 

Repair or replace it. Then go to Step 8.

AC301661AC

Harness side
connector
(front view)

Connector: C-115

SRS-ECU

C-115 (Y)

Center lower
panel

1110 9

1

2

3

1413

12

4

5

6

16

8

15

7

17

18

19

20

AC202026

13 14 15 16 17 18 19 20

5 6 7 8 9 10 11 12

1 2

3 4

C-115 Harness side
connector (rear view)

AH

AC301661AC

Harness side
connector
(front view)

Connector: C-115

SRS-ECU

C-115 (Y)

Center lower
panel

1110 9

1

2

3

1413

12

4

5

6

16

8

15

7

17

18

19

20

AC210474

Connector: C-205 <LHD>

Harness side

AM

21

7

16 15

17

18

20 19

1

2

3

4

5

6

23 22

24

25

28

26

27

9

8

10

11

14

12

13

Junction block (Front view)

AC308772

Connector: C-205

Harness side

AC

Junction block (Front view)

<RHD>

TROUBLESHOOTING

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-81

STEP 8. Check whether the diagnosis code is 
reset.

Q: Is diagnosis code 42 set?

YES : 

Return to Step 1.

NO : 

The procedure is complete (If no 
malfunctions are found in all steps, an 
intermittent malfunction is suspected. Refer 
to GROUP 00 

−

 How to Use 

Troubleshooting/Inspection Service Points 

P.00-6

).

Code No.43: SRS warning lamp circuit open-circuited (Lamp does not Illuminate).

OPERATION

•

Power for the SRS warning lamp is supplied from 
the ignition switch (IG1).

•

The SRS warning lamp illuminates when the 
ignition switch is turned to the "ON" position and 
goes out after approximately 7 seconds if there is 
not a malfunction in the SRS system.

DIAGNOSIS CODE SET CONDITIONS
This diagnosis code is set when an open circuit is 
detected for a continuous period of 5 seconds while 
the SRS-ECU is monitoring the SRS warning lamp 
and the lamp is OFF (transistor OFF). However, if the 
vehicle condition returns to normal, diagnosis code 
43 will be automatically erased, and the SRS 
warning lamp will go out.

NOTE

CONNECTOR
COUPLED: ON
CONNECTOR
UNCOUPLED: OFF

IGNITION 
SWITCH (IG1)

SRS-ECU

MICROCOMPUTER

CONNECTOR
LOCK
SWITCH

WARNING LAMP 
DRIVE CIRCUIT

COMBINATION 
METER

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   

AC301799AB

SRS Warning Lamp Drive Circuit

TROUBLESHOOTING

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-82

PROBABLE CAUSES

•

Damaged wiring harnesses or connectors

•

Malfunction of the SRS-ECU

•

Malfunction of the combination meter

DIAGNOSIS PROCEDURE

STEP 1. Check the SRS warning lamp.
(1) Disconnect the negative battery terminal.

(2) Disconnected the SRS-ECU connector C-115.
(3) Connect the negative battery terminal.
(4) Turn the ignition switch to the "ON" position.

Q: Does the warning lamp illuminate?

YES : 

Erase the diagnosis code memory, and 

check the diagnosis code. If diagnosis code 
43 sets, replace the SRS-ECU (Refer to 

P.52B-178

). Then go to Step 5     .

NO : 

Go to Step 2.

STEP 2. Measure the resistance at the SRS-ECU 
connector C-115.
(1) Disconnect the negative battery terminal.

(2) Disconnected the SRS-ECU connector C-115.
(3) Connect the negative battery terminal.
(4) Turn the ignition switch to the "ON" position.

CAUTION

Do not insert a test probe into the terminal from 
its front side directly as the connector contact 
pressure may be weakened.
(5) Measure the resistance between C-115 harness 

side connector terminal 7 and earth.

OK: Less than 2 

Ω

Q: Is the check result normal?

YES : 

Go to Step 3.

NO : 

Go to Step 4.

AC301661AC

Harness side
connector
(front view)

Connector: C-115

SRS-ECU

C-115 (Y)

Center lower
panel

1110 9

1

2

3

1413

12

4

5

6

16

8

15

7

17

18

19

20

AC301661AC

Harness side
connector
(front view)

Connector: C-115

SRS-ECU

C-115 (Y)

Center lower
panel

1110 9

1

2

3

1413

12

4

5

6

16

8

15

7

17

18

19

20

AC201527

9 10 11 12

13 1415 16

1 2

3 4

5 6 7 8

17 18 19 20

AG

C-115 Harness side
connector (rear view)