Mitsubishi Outlander GS45X. Manual - part 1401

 

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Mitsubishi Outlander GS45X. Manual - part 1401

 

 

SRS AIR BAG DIAGNOSIS

TSB Revision

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-99

STEP 4. Check the passenger's (front) air bag module. 
(Using scan tool MB991958, read the diagnostic trouble 
code.)
(1) Disconnect the negative battery terminal.
(2) Slide the outer housing of passenger’s (front) air bag 

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

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

CAUTION

Do not insert a probe into the terminal from its front side 
directly as the connector contact pressure may be weak-
ened.
(4) 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.

(5) Connect the negative battery terminal.

CAUTION

Always DTC B1B0E is set when checking DTC B1B0B. 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 
B1B0F because the first side terminal is isolated. 
(6) Erase the diagnostic trouble code memory, and check the 

diagnostic trouble code.

Q: Is the checked DTC set?

YES : Go to Step 5.
NO :  Replace the passenger's air bag module (Refer to 

P.52B-439

). Then go to Step 7. 

AC701511

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

 

AC

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-100

STEP 5. Check the passenger’s (front) air bag module 
circuit at 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-101

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

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

Q: Is it open circuit?

YES : Erase the diagnostic trouble code memory, and check 

the diagnostic trouble code. If DTC B1B0B <1st 
squib> or B1B0F <2nd squib> set, replace the 
SRS-ECU. (Refer to 

P.52B-436

). Go to Step 7.

NO :  Go to Step 6. 

STEP 6. Check the harness for short circuit between the 
harness wire and wire. 

• 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 7.
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 7.

AC701556

<1st squib>

AB

C-28 Harness side 
connector (front view)

 

AC701557

 C-28 Harness side 
connector (front view)

 

AB

<2nd squib>

SRS AIR BAG DIAGNOSIS

TSB Revision

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-102

STEP 7. Check 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 B1B0B <1st squib> or B1B0F <2nd squib> set?

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

ZC501967

AC404789

AC701411AB

MB991824

MB991827

MB991910

Data link 
connector

 

 

 

 

 

 

 

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