Mitsubishi Outlander (2003+). Manual — part 360

TROUBLESHOOTING

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-39

DIAGNOSIS PROCEDURE

STEP 1. MUT-II/III diagnosis code

CAUTION

To prevent damage to MUT-II/III, always turn the
ignition switch to the "LOCK" (OFF) position
before connecting or disconnecting MUT-II/III.
(1) Turn the ignition switch to the "ON" position.
(2) Check if the diagnosis code is set.
(3) Turn the ignition switch to the "LOOK" (OFF)

position.

Q: Is diagnosis code 34 set?

YES :

Go to Step 2.

NO :

Go to Step 3.

STEP 2. Connector check: SRS-ECU connector
C-114

Q: Is the connector correctly engaged?

YES :

Go to Step 3.

NO :

Engage the connector correctly. Then go to
Step 7.

STEP 3. Connector check: SRS-ECU connector
C-114 and driver’s seat belt pre-tensioner
connector D-29. (Check whether the diagnosis
code is reset.)
(1) Disconnect the negative battery terminal.

(2) Disconnect connectors C-114 and D-29, and then

reconnect them. For connector D-29, use a
flat-tipped screwdriver to pull out the locking
button at the harness side connector, and then
disconnect the connector.

(3) Connector the negative battery terminal.

AC301661

Connector: C-114

AE

SRS-ECU

C-114 (Y)

Center lower
panel

Harness side
connector
(front view)

40

23

24

41

32

42

33

31

29
38

39

30

37

28

21

22

35

26

36

27

34

25

AC301661

Connector: C-114

AE

SRS-ECU

C-114 (Y)

Center lower
panel

Harness side
connector
(front view)

40

23

24

41

32

42

33

31

29
38

39

30

37

28

21

22

35

26

36

27

34

25

AC301410

Connector: D-29

AI

1

2

Harness side
connector
(front view)

AC300147AE

Flat-tip screw
driver

Locking button

D-29 Driver's seat
belt pre-tensioner
connector

D-29 Harness side connector

TROUBLESHOOTING

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-40

(4) Erase the diagnosis code memory, and check the

diagnosis code.

Q: Is diagnosis code 26 set?

YES :

Go to Step 4.

NO :

The procedure is complete. It is assumed
that diagnosis code 26 set as connector
C-114 or D-29 was engaged improperly.

STEP 4. Check the driver's seat belt
pre-tensioner. (Check whether the diagnosis
code is reset.)
(1) Disconnect the negative battery terminal.

(2) Disconnect driver's seat belt pre-tensioner

connector D-29. Use a flat-tipped screwdriver to
pull out the locking button at the harness side
connector, and then disconnect the connector.

(3) Connect special tool dummy resistor (MB991865)

to special tool resistor harness (MB991884).

(4) Connect special tool (MB991884) to the D-29

harness side connector.

(5) Connect the negative battery terminal.
(6) Erase diagnosis code memory, and then check

the diagnosis code.

Q: Is diagnosis code 26 set?

YES :

Go to Step 5.

NO :

Replace the driver's seat belt pre-tensioner
(Refer to

P.52B-188

). Then go to Step 7.

STEP 5. Measure the resistance at the SRS-ECU
connector C-114.

(1) Disconnect SRS-ECU connector C-114.

DANGER

To prevents the air bag from deploying
unintentionally, disconnect the driver’s seat
belt pre-tensioner connector D-29 to short
the squib circuit.

AC301410

Connector: D-29

AI

1

2

Harness side
connector
(front view)

AC300147AE

Flat-tip screw
driver

Locking button

D-29 Driver's seat
belt pre-tensioner
connector

D-29 Harness side connector

MB991884
MB991885

AC300975AD

MB991865
(Dummy resistor : 3

Ω)

MB991884
(Resistor
harness)

D-29 Harness side connector

AC301661

Connector: C-114

AE

SRS-ECU

C-114 (Y)

Center lower
panel

Harness side
connector
(front view)

40

23

24

41

32

42

33

31

29
38

39

30

37

28

21

22

35

26

36

27

34

25

AC301410

Connector: D-29

AI

1

2

Harness side
connector
(front view)

TROUBLESHOOTING

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-41

(2) Disconnect driver's seat belt pre-tensioner

connector D-29. Use a flat-tipped screwdriver to
pull out the locking button at the harness side
connector, and then disconnect the connector.

CAUTION

Insert an insulator such as a cable tie to a depth
of 4mm or more, otherwise the short bar will not
be released.
(3) Insert a cable tie [3 mm wide, 0.5 mm thick]

between terminals 29, 30 and the short bar to
release the short spring.

CAUTION

Do not insert a test probe into the terminal from
its front side directly as the connector contact
pressure may be weakened.
(4) Measure the resistance between C-114 harness

side connector terminals 29 and 30.

OK: Open circuit

Q: Is the check result normal?

YES :

Erase the diagnosis code memory, and

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

P.52B-178

). Then go to Step 7 .

NO :

Go to Step 6.

AC300147AE

Flat-tip screw
driver

Locking button

D-29 Driver's seat
belt pre-tensioner
connector

D-29 Harness side connector

AC300977

Section
A - A

C-114 Harness side connector
(front view)

Cable tie

Short spring

4 mm or more

Terminal

A

A

AB

34 35 36 37 38 39 40 41 42

25 26 27 28 29 30 31 32 33

21 22

23 24

AC300985AB

C-114 Connector
harness side (rear view)

TROUBLESHOOTING

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-42

STEP 6. Connector check: SRS-ECU connector
C-114, driver’s seat belt pre-tensioner connector
D-29 and intermediate connector D-31

Q: Is the check result normal?

YES :

Check the harness wires for short circuit

between SRS-ECU connector C-114
(terminal No.29 and 30) and driver’s seat
belt pre-tensioner connector D-29 (terminal
No.2 and 1), and repair if necessary. Then
go to Step 7.

NO :

Repair or replace it. Then go to Step 7.

STEP 7. Check whether the diagnosis code is
reset.

Q: Is diagnosis code 26 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

).

AC301661

Connector: C-114

AE

SRS-ECU

C-114 (Y)

Center lower
panel

Harness side
connector
(front view)

40

23

24

41

32

42

33

31

29
38

39

30

37

28

21

22

35

26

36

27

34

25

AC301410

Connector: D-29

AI

1

2

Harness side
connector
(front view)

AC301408

Connector: D-31

AE

11

1

4

3

10
16

13

12

5 6

2

14

8

15

9

7