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

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Index

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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

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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

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