Mitsubishi Lancer Evolution IX. Manual — part 107

AC304777

Steering shaft

AB

MB991502

<Using the M.U.T.-II>

AC211686

MB991911

16-PIN

MB991827

MB991824

AE

<Using the M.U.T.-III>

PRECAUTIONS BEFORE SERVICE

GENERAL

00-21

CAUTION

Turn the ignition switch to the "LOCK" (OFF)
position before connecting or disconnecting the
M.U.T.-II/III.
Connect the M.U.T.-II/III to the diagnosis connector
as shown in the illustration.

IN ORDER TO PREVENT VEHICLES
FROM FIRE

"Improper installation of electrical or fuel related parts
could cause a fire. In order to retain the high quality
and safety of the vehicle, it is important that any
accessories that may be fitted or modifica-
tions/repairs that may be carried out which involve
the electrical or fuel systems, MUST be carried out in
accordance with MMC's information/Instructions".

ENGINE OILS
HEALTH WARNING

Prolonged and repeated contact with mineral oil will
result in the removal of natural fats from the skin,
leading to dryness, irritation and dermatitis. In addi-
tion, used engine oil contains potentially harmful con-
taminants which may cause skin cancer. Adequate
means of skin protection and washing facilities must
be provided.

RECOMMENDED PRECAUTIONS

The most effective precaution is to adapt working
practices which prevent, as far as practicable, the
risk of skin contact with mineral oils, for example by
using enclosed systems for handling used engine oil
and by degreasing components, where practicable,
before handling them.
Other precautions:

• Avoid prolonged and repeated contact with oils,

particularly used engine oils.

• Wear protective clothing, including impervious

gloves where practicable.

• Avoid contaminating clothes, particularly under-

pants, with oil.

• Do not put oily rags in pockets, the use of overalls

without pockets will avoid this.

• Do not wear heavily soiled clothing and

oil-impregnated foot-wear. Overalls must be
cleaned regularly and kept separately from per-
sonal clothing.

• Where there is a risk of eye contact, eye protec-

tion should be worn, for example, chemical gog-
gles or face shields; in addition an eye wash
facility should be provided.

• Obtain First Aid treatment immediately for open

cuts and wounds.

• Wash regularly with soap and water to ensure all

oil is removed, especially before meals (skin
cleansers and nail brushes will help). After clean-
ing, the application of preparations containing
lanolin to replace the natural skin oils is advised.

• Do not use petrol, kerosene, diesel fuel, gas oil,

thinners or solvents for cleaning skin.

• Use barrier creams, applying them before each

work period, to help the removal of oil from the
skin after work.

• If skin disorders develop, obtain medical advice

without delay.

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

GENERAL

00-22

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

M1001009800075

The Supplemental Restraint System (SRS) and seat
belt with pre-tensioner is designed to supplement the
driver's and front passenger's seat belts to help
reduce the risk or severity of injury to the driver and
front passenger by activating and deploying both
front air bags in certain frontal collisions.
The SRS consist of two air bag modules, SRS air
bag control unit (SRS-ECU), two front impact sen-
sors, SRS warning lamp, clock spring and seat belt
pre-tensioner. Front air bags are located in the centre
of the steering wheel and above the glove box. Each
air bag is made up of a folded air bag and an inflator
unit. The SRS-ECU under the front floor console

monitors the system and has a safing G-sensor and
analogue G-sensor. The warning lamp on the instru-
ment panel indicates the operational status of the
SRS. The clock spring is installed in the steering col-
umn. The seat belt pre-tensioner is built into the
driver's and passenger's front seat belt retractor. The
front impact sensor is assembled on the headlamp
support panel to monitor collision upon frontal
impact.
Only authorized service personnel should do work on
or around the SRS components. Those service per-
sonnel should read this manual carefully before start-
ing any such work.

AC310783

AC304668

AC310070

AC208855

Driver's air bag
module

Clock spring

Passenger's (front)
air bag module

SRS-ECU

Diagnosis connector

SRS warning lamp

Seat belt with
pre-tensioner

Front impact sensor

AB

SRS SERVICE PRECAUTIONS

GENERAL

00-23

SRS SERVICE PRECAUTIONS

M1001006000229

DANGER

In order to avoid injury to yourself or others
from accidental deployment of the air bag
during servicing, read and carefully follow all
the precautions and procedures described in
this manual.

CAUTION

Do not use any electrical test equipment on or
near SRS components, except those specified on

P.52B-8

.

CAUTION

Never Attempt to Repair the Following Compo-
nents:

1. SRS air bag control unit (SRS-ECU)
2. Clock spring
3. Driver's and passenger's (front) air bag mod-

ules

4. Front impact sensor
5. Seat belt with pre-tensioner

NOTE: If any of these components are diagnosed as
faulty, they should only be replaced, in accordance
with the INDIVIDUAL COMPONENTS SERVICE pro-
cedures in this manual, starting at page

P.52B-105

.

AC300634

SRS-ECU connector

AB

CAUTION

Do not attempt to repair the wiring harness con-
nectors of the SRS. If a defective wiring harness
is found, repair or replace it by referring to the
table below.

SRS-ECU terminal No.

Destination of harness

Remedy

1, 2

Instrument panel wiring harness

→

Front wiring harness (RH)

→ Front

impact sensor (RH)

Correct or replace each wiring
harness.

3, 4

Instrument panel wiring harness

→

Front wiring harness (LH)

→ Front

impact sensor (LH)

Correct or replace each wiring
harness.

7

Instrument panel wiring harness

→

Earth

Correct or replace the instrument
panel wiring harness.

8

Instrument panel wiring harness

→

SRS warning lamp

Correct or replace the instrument
panel wiring harness.

9, 10

Instrument panel wiring harness

→

Passenger's (front) air bag module

Correct or replace the instrument
panel wiring harness.

11, 12

Instrument panel wiring harness

→

Clock spring

→ Driver's air bag

module

Correct or replace instrument panel
wiring harness. Replace the clock
spring.

13

Instrument panel wiring harness

→

Junction block (fuse No.3)

Correct or replace the instrument
panel wiring harness.

16

Instrument panel wiring harness

→

Junction block (fuse No.2)

Correct or replace the instrument
panel wiring harness.

SRS SERVICE PRECAUTIONS

GENERAL

00-24

DANGER

After disconnecting the battery cable, wait 60

seconds or more before proceeding with the

following work. In addition, insulate the neg-

ative battery terminal with a tape. The con-

denser inside the SRS-ECU is designed to

retain enough voltage to deploy the air bag

for a short time even after the battery has

been disconnected, so serious injury may

result from unintended air bag deployment if

work is done on the SRS system immediately

after the battery cables are disconnected.

CAUTION

The SRS components and seat belt with pre-ten-
sioner should not be subjected to heat, so
remove the SRS-ECU, driver’s and passenger’s
(front) air bag modules, clock spring, and seat
belt pre-tensioner before drying or baking the
vehicle after painting.

• SRS-ECU, air bag modules, clock spring,

impact sensors: 93

°C or more

• Seat belt with pre-tensioner: 90°C or more

CAUTION

Whenever you finish servicing the SRS, always
erase the diagnosis code and check warning
lamp operation to make sure that the system
functions properly.

AC006195

SRS-harness connector

SRS-ECU harness connector
(rear side)

AH

MB992006

CAUTION

If checks are carried out by using the SRS-ECU
harness connector, observe the following proce-
dures: Insert the special tool extra fine probe
(MB992006) into connector from harness side
(rear side), and connect the tester to this probe. If
any tool than special tool is used, damage to the
harness and other components will result. Never
insert the probe directly to the terminals from the
front of the connector. The terminals are plated
to increase their conductivity, so that if they are
touched directly by the probe, the plating may
break, which will cause drops in reliability.

20

Instrument panel wiring harness

→

Diagnosis connector

Correct or replace the instrument
panel wiring harness.

27, 28

Floor wiring harness (RH)

→

Passenger's (front) seat belt
pre-tensioner <LH drive vehicles>
Floor wiring harness (LH)

→

Passenger's (front) seat belt
pre-tensioner <RH drive vehicles>

Connect or replace the floor wiring
harness.

29, 30

Floor wiring harness (LH)

→ Driver's

seat belt pre-tensioner <LH drive
vehicles> Floor wiring harness (RH)
→ Driver's seat belt pre-tensioner
<RH drive vehicles>

Connect or replace the floor wiring
harness.

AC300580AB

Insulating tape

Battery

Battery cable

SRS-ECU terminal No.

Destination of harness

Remedy