Mitsubishi Outlander GS45X. Manual - part 1482

 

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Mitsubishi Outlander GS45X. Manual - part 1482

 

 

TEST EQUIPMENT

TSB Revision

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-423

TEST EQUIPMENT

M1524000800513

MB991866
Resistor harness

Driver’s and passenger’s (front) 
air bag and side-air bag circuit 
check

MB991884
Resistor harness

Curtain air bag and seat belt 
pre-tensioner circuit check

MB991885
Adapter harness

Deployment of Knee air bag, 
curtain air bag and seat belt 
pre-tensioner inside or outside 
the vehicle

MB991223

a: MB991219
b: MB991220
c: MB991221
d: MB991222

Harness set

a: Test harness
b: LED harness
c: LED harness adaptor
d: Probe

General service tools

Checking the continuity and 
measuring the voltage at the 
SRS-ECU harness connector

MB992102
Air bag inflation adapter 
harness

Deployment of driver’s and 
passenger’s (front) air bag 
module inside or outside the 
vehicle

MB992006
Extra fine probe

General service tool

Continuity check and voltage 
measurement at harness wire or 
connector for loose, corroded or 
damaged terminals, or terminals 
pushed back in the connector.

Tool

Tool number and name

Supersession

Application

MB991866

MB991884

MB991885

MB991223

a

d

c

b

Do not use

BD

MB992102

MB992006

Tool

Name

Use

Digital multi-meter 
Use a multi-meter for which the maximum 
test current is 2 mA or less at the minimum 
range of resistance measurement

Checking the SRS electrical circuitry with 
SRS check harness

AC000019AB

POST-COLLISION DIAGNOSIS

TSB Revision

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-424

POST-COLLISION DIAGNOSIS

M1524001101833

To inspect and service the SRS after a collision (whether or not 
the air bags have deployed), perform the following steps.

SRS-ECU MEMORY CHECK

Required Special Tool:

•  MB991958: Scan Tool (M.U.T.-III Sub Assembly)

• MB991824:Vehicle Communication Interface (V.C.I.)

• MB991827:M.U.T.-III USB Cable

• MB991910:M.U.T.-III Main Harness A (Vehicles with 

CAN Communication System)

CAUTION

To prevent damage to scan tool MB991958, always turn the 
ignition switch to the "LOCK" (OFF) position before con-
necting or disconnecting scan tool MB991958.
1. Connect scan tool MB991958 to the data link connector 

(16-pin).

2. Read (and write down) all displayed diagnostic trouble 

codes (Refer to 

P.52B-31

).

NOTE: If the battery power supply has been disconnected or 
disrupted by the collision, scan tool MB991958 cannot com-
municate with the SRS-ECU. Check the battery, then check 
and, if necessary, repair the front wiring harness and the 
instrument panel wiring harness before proceeding.

3. Read the data list (fault duration and how many times 

memories are erased), using scan tool MB991958 (Refer to 

P.52B-419

).

4. Erase the diagnostic trouble codes, and then turn the 

ignition switch to the LOCK (OFF) position.

5. Wait for at least one second, and then turn the ignition 

switch to the ON position again.

6. After waiting 15 seconds or more, note all displayed 

diagnostic trouble codes (Refer to 

P.52B-28

).

REPAIR PROCEDURE

.

WHEN FRONT AIR BAGS DEPLOY IN A COLLI-
SION.

1. Replace the following parts with new ones:

• SRS-ECU (Refer to 

P.52B-436

).

• Air bag modules (Refer to 

P.52B-439

).

• Seat belt with pre-tensioner (Refer to 

P.52B-457

).

• Front impact sensors (Refer to 

P.52B-433

).

• Front passenger’s air bag lid assembly (Refer to GROUP 

52A, Instrument Panel Assembly 

P.52A-2

).

• Front passenger’s seat cushion frame assembly (Occupant 

classification-ECU and weight sensor) (Refer to GROUP 
52A, Front Seat Assembly 

P.52A-19

). 

2. Check the following parts and replace if there are any 

malfunctions:

ZC501967

AC404789

AC701411AB

MB991824

MB991827

MB991910

Data link 
connector

POST-COLLISION DIAGNOSIS

TSB Revision

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-425

• Clock spring (Refer to 

P.52B-439

).

• Driver’s seat cushion frame assembly (seat slide sensor) 

(Refer to GROUP 52A, Front Seat Assembly 

P.52A-19

).

• Seat belt switch (Refer to GROUP 52A, Front Seat Assem-

bly 

P.52A-17

).

• Steering wheel, steering column shaft assembly

(1) Check the wiring harness (built into the steering wheel) 

and connectors for damage, and terminals for 
deformation.

(2) Install the air bag module to check fit and alignment with 

the steering wheel.

(3) Check the steering wheel for noise, binding or difficult 

operation and excessive free play.

(4) Check the steering column shaft shock absorbing 

mechanism (Refer to GROUP 37, On-Vehicle Service 

− 

Steering Column Shaft Assembly Shock Absorbing 
Mechanism Check 

P.37-29

).

3. Check the wiring harnesses for binding, the connectors for 

damage, poor connections, and the terminals for 
deformation (Refer to 

P.52B-25

).

.

WHEN SIDE AND CURTAIN AIR BAGS DEPLOY IN 
A COLLISION.

1. Replace the following parts with new ones:

• SRS-ECU (Refer to 

P.52B-436

).

• Side impact sensors (front and rear) (Refer to 

P.52B-450

).

• Front seatback assembly, front passenger’s seat cushion 

frame assembly (Occupant classification-ECU and weight 
sensor) (Refer to GROUP 52A, Front Seat Assembly 

P.52A-19

). 

• Curtain air bag module (Refer to 

P.52B-453

).

2. Check the wiring harnesses for binding, the connectors for 

damage, poor connections, and the terminals for 
deformation (Refer to 

P.52B-25

).

.

WHEN CURTAIN AIR BAGS DEPLOY IN A 
COLLISION.

1. Replace the following parts with new ones:

• SRS-ECU (Refer to 

P.52B-436

).

• Side impact sensors (rear) (Refer to 

P.52B-450

).

• Front passenger’s seat cushion frame assembly (Occupant 

classification-ECU and weight sensor) (Refer to GROUP 
52A, Front Seat Assembly 

P.52A-19

). 

• Curtain air bag module (Refer to 

P.52B-453

).

2. Check the wiring harnesses for binding, the connectors for 

damage, poor connections, and the terminals for 
deformation (Refer to 

P.52B-25

).

.

POST-COLLISION DIAGNOSIS

TSB Revision

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-426

WHEN CURTAIN AIR BAGS DEPLOY AND SEAT 
BELT PRE-TENSIONER OPERATE IN A 
COLLISION.

1. Replace the following parts with new ones:

• SRS-ECU (Refer to 

P.52B-436

).

• Side impact sensors (rear) (Refer to 

P.52B-450

).

• Front passenger’s seat cushion frame assembly (Occupant 

classification-ECU and weight sensor) (Refer to GROUP 
52A, Front Seat Assembly 

P.52A-19

).

• Seat belt with pre-tensioner (Refer to 

P.52B-457

).

2. Check the wiring harnesses for binding, the connectors for 

damage, poor connections, and the terminals for 
deformation (Refer to 

P.52B-25

).

.

WHEN AIR BAGS DO NOT DEPLOY IN 
LOW-SPEED COLLISION.

Check the SRS components. If the SRS components are show-
ing any visible damage such as dents, cracks, or deformation, 
replace them with new ones. Concerning parts removed for 
inspection, replacement with new parts and cautionary points 
for working, refer to appropriate INDIVIDUAL COMPONENT 
SERVICE 

P.52B-430

.

.

FRONT IMPACT SENSOR

1. Check the front end upper bar for distortion and rust.
2. Check the front impact sensor for dents, cracks, deformation 

or rust.

3. Check the front impact sensor wiring harness for binding, 

check the connector for damage, and check the terminals 
for deformation.

NOTE:  The illustration shows the side impact sensor (RH). 
The position of the side impact sensor (LH) is symmetrical to 
this.

.

SRS-ECU

1. Check the SRS-ECU case and brackets for dents, cracks or 

deformation.

2. Check the connector for damage, and the terminals for 

deformation.

3. Check the installation of the SRS-ECU and its bracket.

.

AC607554

AB

Front impact 
sensor

Front end upper bar

AC701919

AB

SRS-ECU

 

 

 

 

 

 

 

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