Mitsubishi Outlander GS45X. Manual — part 1396

SRS AIR BAG DIAGNOSIS

TSB Revision

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-79

STEP 3. Check the passenger's (front) air bag module.
(Using scan tool MB991958, read the diagnostic trouble
code.)
(1) Disconnect the negative battery terminal.
(2) Disconnect the passenger’s (front) air bag module

connector C-11.

(3) Slide the outer housing of passenger’s (front) air bag

module connector C-11 in the arrow direction shown, and
disconnect the connector.

(4) Connect special tool MB991865 to special tool MB991866.

CAUTION

Do not insert a test probe into the terminal from its front
side directly, as the connector contact pressure may be
weakened.
(5) Insert special tool MB991866 into the harness side

connector C-11 (terminal No.1 and 2 <1st squib> or terminal
No.3 and 4 <2nd squib>) by backprobing.

(6) Connect the negative battery terminal.

CAUTION

Always DTC B1B0E is set when checking DTC B1B08. This
is because the second side terminal is isolated when
checking it. DTC B1B0E is set but this is not a fault. In
addition, always DTC B1B0A is set when checking DTC
B1B0C because the first side terminal is isolated.
(7) Erase the diagnostic trouble code memory, and check the

diagnostic trouble code.

Q: Is the checked DTC set?

YES : Go to Step 4.
NO : Replace the passenger's (front) air bag module.

(Refer to

P.52B-439

). Then go to Step 6.

AC701511

Outer housing of the driver's air bag
module connector

AB

AC701551AB

MB991865
(Dummy resistor: 3

Ω)

MB991866
(Resistor harness)

C-11 Harness
side connector

C-11 Passenger's (front)
air bag module connector

SRS AIR BAG DIAGNOSIS

TSB Revision

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-80

STEP 4. Check the passenger's (front) air bag module
circuit. Measure the resistance at the SRS-ECU connector
C-28.
(1) Disconnect the negative battery terminal.
(2) While pushing the part "A" indicated in the figure of the

harness side connector, turn the lock lever to the direction
of the arrow to release the lock lever, and disconnect the
C-28 SRS-ECU connector.

DANGER

To prevent the air bag from deploying unintentionally,
disconnect the passenger’s (front) air bag module
connector C-11 to short the squib circuit.

(3) Slide the outer housing of passenger’s (front) air bag

module connector C-11 in the arrow direction shown, and
disconnect the connector.

CAUTION

Insert an insulator such as a cable tie to a depth of 4 mm
(0.16 inch) or more, otherwise the short spring will not be
released.
(4) Insert a cable tie [3 mm (0.12 inch) wide, 0.5 mm (0.02 inch)

thick] between terminals 7 and 8 <1st squib> or 11 and 12
<2nd squib>, and the short spring to release the short
spring.

AC506734

A

AB

Lock lever

AC701511

Outer housing of the passenger's (front) air bag
module connector

AC

AC701517AD

A

A

<1st Squib>

C-28 Harness side
connector (front view)

Section
A - A

Cable tie

Short spring

4 mm or more

Terminal

AC701517AE

A

A

<2nd Squib>

Section
A - A

C-28 Harness side
connector (front view)

Cable tie

Short spring

4 mm or more

Terminal

SRS AIR BAG DIAGNOSIS

TSB Revision

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-81

(5) Check for continuity between C-28 harness side connector

terminals 7 and 8 <1st squib> or 11 and 12 <2nd squib>,
and body ground.
It should be an open circuit.

Q: Is it open circuit?

YES : Erase the diagnostic trouble code memory, and check

the diagnostic trouble code. If DTC B1B08 <1st
squib> B1B0C <2nd squib> sets, replace the
SRS-ECU. (Refer to

P.52B-436

). Go to Step 6.

NO : Go to Step 5.

STEP 5. Check the harness wires for short circuit to
ground between the following connector.

• SRS-ECU connector C-28 (terminal No.7 and 8) and pas-

senger's (front) air bag module connector C-11 (terminal
No.2 and 1) <1st squib>.

• SRS-ECU connector C-28 (terminal No.11 and 12) and pas-

senger's (front) air bag module connector C-11 (terminal
No.4 and 3) <2nd squib>.

Q: Is the check result normal?

YES : Go to Step 6.
NO : Repair the harness wires between SRS-ECU

connector C-28 and passenger's (front) air bag
module connector C-11. Then go to Step 6.

AC701552

<1st squib>

C-28 Harness side
connector (front view)

AB

AC701553AB

C-28 Harness side
connector (front view)

<2nd squib>

SRS AIR BAG DIAGNOSIS

TSB Revision

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-82

STEP 6. Recheck for diagnostic trouble code.
Check again if the DTC is set.
(1) Erase the DTC.
(2) Turn the ignition switch to the "ON" position.
(3) Check if the DTC is set.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is DTC B1B08 <1st squib> B1B0C <2nd squib> set?

YES : Return to Step 1.
NO : The procedure is complete.

ZC501967

AC404789

AC701411AB

MB991824

MB991827

MB991910

Data link
connector