Mitsubishi Outlander (2003+). Manual - part 393

POST-COLLISION DIAGNOSIS

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-171

POST-COLLISION DIAGNOSIS

M1524001100528

Whether or not the air bags have deployed, check 
and service the vehicle after collision as follows:

SRS-ECU MEMORY CHECK

CAUTION

Refer to that the ignition switch is "LOCK" (OFF) 
when connecting or disconnecting MUT-II/III.
1. Connect the MUT-II/III to the diagnosis connector 

(Refer to GROUP 00 

−

 How to Use 

Troubleshooting/Inspection Service Points 

P.00-6

).

2. Read (and write down) all displayed diagnosis 

codes (Refer to 

P.52B-11

).

NOTE: If battery power supply has been shut 
down by the collision, the MUT-II/III cannot 
communicate with the SRS-ECU. Check and, 
repair if necessary, the instrument panel wiring 
harness before the next job.

3. Use the MUT-II/III to read the data list (how long 

trouble(s) have continued and how often memory 
have been erased).

AC107200

16 Pin

MB991502

AI

<Using the MUT-II>

AC308915 AC

MB991911

16-PIN

MB991827

MB991824 

<Using the MUT-III>

POST-COLLISION DIAGNOSIS

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-172

Data list

4. Erase the diagnosis codes and after waiting 5 

seconds or more read (and write down) all 
displayed diagnosis codes.

REPAIR PROCEDURE

WHEN FRONT AIR BAGS DEPLOY IN A 
COLLISION.
1. Replace the following parts with new ones.

•

SRS-ECU (Refer to 

P.52B-178

).

•

Air bag modules (Refer to 

P.52B-179

).

•

Seat belt with pre-tensioner (Refer to 

P.52B-188

).

•

Front impact sensors (Refer to 

P.52B-176

).

•

Instrument panel (Refer to GROUP 52A 

−

 

Instrument Panel Assembly <LH drive 
vehicles>

P.52A-2

 , <RH drive vehicles >

P.52A-8

 

).

2. Check the following parts and replace if there are 

any malfunctions.

•

Clock spring (Refer to 

P.52B-179

).

•

Steering wheel, steering column and 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 or 

alignment with the steering wheel.

(3) Check the steering wheel for noise, binds or 

difficult operation and excessive free play.

(4) Check the steering column shaft shock 

absorbing mechanism (Refer to GROUP 37A 

−

 On-Vehicle Service 

P.37A-15

).

3. Check the harness for binding, connectors for 

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

P.52B-3

).

WHEN SIDE AIR BAGS DEPLOY IN A COLLISION.
1. Replace the following parts with new ones.

•

SRS-ECU (Refer to 

P.52B-178

).

•

Side impact sensors (Refer to 

P.52B-186

).

•

Front seatback assembly (Refer to GROUP 52A 

−

 Front Seat Assembly 

P.52A-33

).

2. Check the harness for binding, connectors for 

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

P.52B-3

).

WHEN AIR BAGS DO NOT DEPLOY IN 
LOW-SPEED COLLISION.
Check the SRS components. If visible damage such 
as dents, cracks, or deformation are found on the 
SRS components, replace them with new ones. 
Concerning parts removed for inspection, 
replacement with new parts and cautions in working, 
refer to INDIVIDUAL COMPONENT SERVICE, 

P.52B-174

Front impact sensor

1. Check the front side member and front impact 

sensor for deformation or rust.

2. Check the front impact sensor for dents, cracks, 

deformation or rust.

3. Check the sensor harnesses for binding, the 

connectors for damage, and the terminals for 
deformation.

NOTE: The figures show front impact sensors (LH). 
The side impact sensors (RH) is symmetrical with the 
side impact sensors (LH).

No

Service Data Item

Applicability

92

Number indicating how often the memory is 
cleared

Maximum time to be stored: 250

93

How long a problem has lasted (How long it 
takes from the occurrence of the problem till 
the first air bag squib igniting signal)

Maximum time to be stored: 9,999 minutes 
(approximately 7 days)

94

How long a problem has lasted (How long it 
takes from the first air bag squib igniting 
signal till now).

AC300581AB

Front impact sensors

POST-COLLISION DIAGNOSIS

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-173

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 SRS-ECU and bracket for installation 

condition. 

Air bag modules

1. Check the pad cover for dents, cracks or 

deformation.

2. Check the connector for damage, terminals 

deformities, and the harness for binding.

3. Check the air bag inflator case for dents, cracks or 

deformities.

4. Check the air bag modules for proper installation.

Front seatback assembly (Side air bag module)

1. Check the side air bag module deployment 

section in the seat for dents and deformation.

2. Check the connectors for damage, the terminals 

for deformation, and the harness for binds.

Clock spring

1. Check the clock spring connectors and protective 

tube for damage, and the terminals for 
deformation.

2. Visually check the case for damage.

Side impact sensor

1. Check the centre pillar for deformation or rust.
2. Check the side impact sensors for dents, cracks, 

deformation and rust.

3. Check the connector for damage and the 

terminals for deformation.

AC300582

SRS-ECU

AB

AC300170AB

<Driver's side>

<Front passenger's side>

Inflator case

Connector

Connector

Inflator case

AC300172 AB

Air bag module
deployment
section

AC304044AC

Case

Protective tubes

AC201282AG

Center pillar

INDIVIDUAL COMPONENT SERVICE

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-174

NOTE: The figures show side impact sensors 
(RH). The side impact sensors (LH) is 
symmetrical with the side impact sensors (RH).

Steering wheel, steering column and shaft 
assembly
1. Check the wiring harness (built into the steering 

wheel) and the connectors for damage, and the 
terminals for deformation.

2. Install the air bag module to check fit or 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 37A 

−

 On-Vehicle 

Service 

P.37A-15

).

Seat belt with pre-tensioner
1. Check the seat belt for damage or deformation.
2. Check the seat belt with pre-tensioner for cracks 

or deformation.

3. Check that the unit is installed correctly to the 

vehicle body.

Harness connector (Front wiring harness, 
instrument panel wiring harness and floor wiring 
harness)
Check harnesses for binding, connectors for damage 
and terminals for deformation (Refer to 

P.52B-3

).

INDIVIDUAL COMPONENT SERVICE

M1524002900390

WARNING

•

If heat damage may occur during paint work, remove the SRS-ECU, the air bag modules, 
the clock spring, front seats, and the seat belt with pre-tensioner. 

•

SRS-ECU, air bag module, clock spring and impact sensor: 93

°

 C or more

•

Seat belt with pre-tensioner: 90

°

C or more

•

If the SRS components are removed for the purpose of check, sheet metal repair, painting, 
etc., they should be stored in a clean, dry place until they are reinstalled.

If the SRS components are to be removed or replaced as a result of maintenance, troubleshooting etc., follow 
the service procedures that follow. (Front impact sensor; refer to 

P.52B-176

, SRS-ECU; refer to 

P.52B-178

, 

Air bag modules and clock spring; refer to 

P.52B-179

, Side impact sensor; refer to 

P.52B-186

, Seat belt with 

pre-tensioner; refer to 

P.52B-188

).