Mitsubishi Colt Ralliart. Manual — part 278

AC601639

AC207323

AC207321

AC207230

AC601468

Driver's air bag
module

Passenger's (front)
air bag module

SRS-ECU

Diagnosis connector

Clock spring

SRS warning lamp

Seat belt with
pre-tensioner

Curtain air bag module

Front impact sensor

SRS-ECU

Side impact sensor

Side-airbag module

AB

SRS warning lamp

<VR-X>

SRS warning lamp

<LS and VR>

<RALLIART version-R>

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

GENERAL

00-25

Main

Index

Group

TOC

SRS SERVICE PRECAUTIONS

GENERAL

00-26

SRS SERVICE PRECAUTIONS

M1001006000401

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-9

.

• Never Attempt to Repair the Following Com-

ponents:

• SRS-ECU
• Front impact sensor
• Clock spring
• Driver's and passenger's (front) air bag

modules

• Seat belt with pre-tensioner
• Side impact sensor
• Curtain air bag module

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-139

.

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.

AC300634

SRS-ECU connector

AB

SRS-ECU terminal No.

Destination of harness

Remedy

1, 2

Instrument panel wiring harness

→ Front

wiring harness

→ Front impact sensor

(RH)

Correct or replace each wiring harness.

3, 4

Instrument panel wiring harness

→ Front

wiring harness

→ Front impact sensor

(LH)

Correct or replace each wiring harness.

5, 6

Instrument panel wiring harness

→ Seat

belt pre-tensioner (LH)

Correct or replace the instrument panel
wiring harness.

7, 8

Instrument panel wiring harness

→ Seat

belt pre-tensioner (RH)

Correct or replace the instrument panel
wiring harness.

9, 10

Instrument panel wiring harness

→ Air

bag module (Front passenger's side)

Correct or replace the instrument panel
wiring harness.

11, 12

Instrument panel wiring harness

→

Clock spring

→ Air bag module (Driver's

side)

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

13

Instrument panel wiring harness

→

Junction block (fuse No.37)

Correct or replace the instrument panel
wiring harness.

16

Instrument panel wiring harness

→

Junction block (fuse No.40)

Correct or replace the instrument panel
wiring harness.

18

Instrument panel wiring harness

→ SRS

wiring lamp

Correct or replace the Instrument panel
wiring harness.

Main

Index

Group

TOC

SRS SERVICE PRECAUTIONS

GENERAL

00-27

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.

AC300580AB

Insulating tape

Battery

Battery cable

19

Instrument panel wiring harness

→ Earth Correct or replace the instrument panel

wiring harness.

20

Instrument panel wiring harness

→

Diagnosis connector

Correct or replace the instrument panel
wiring harness.

21, 22

Instrument panel wiring harness

→

Side-airbag module (LH)

Correct or replace the floor wiring
harness.

23, 24

Instrument panel wiring harness

→

Side-airbag module (RH)

Correct or replace the Instrument panel
wiring harness.

27, 28

Instrument panel wiring harness

→

Curtain air bag wiring harness

→ Curtain

air bag module (LH)

Correct or replace each wiring harness.

29, 30

Instrument panel wiring harness

→

Curtain air bag wiring harness

→ Curtain

air bag module (RH)

Correct or replace each wiring harness.

34, 36

Instrument panel wiring harness

→ Side

impact sensor (LH)

Correct or replace the Instrument panel
wiring harness.

40, 42

Instrument panel wiring harness

→ Side

impact sensor (RH)

Correct or replace the Instrument panel
wiring harness.

SRS-ECU terminal No.

Destination of harness

Remedy

Main

Index

Group

TOC

SRS SERVICE PRECAUTIONS

GENERAL

00-28

CAUTION

• The SRS components and seat belt with

pre-tensioner should not be subjected to
heat, so remove the SRS-ECU, driver’s and
passenger’s (front) air bag modules, clock
spring, front impact sensor, side impact sen-
sor, side-airbag modules, curtain air bag mod-
ules 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

• Whenever you finish servicing the SRS,

always erase the diagnosis code and check
warning lamp operation to make sure that the
system functions properly.

• If checks are carried out by using the

SRS-ECU harness connector, observe the fol-
lowing procedures: 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.

AC006195

SRS-harness connector

SRS-ECU harness connector
(rear side)

AH

MB992006

Main

Index

Group

TOC