Mitsubishi Galant. Manual — part 593

INTRODUCTION

TSB Revision

SUPPLEMENTAL RESTRAINT SYSTEM(SRS)

52B-13

AC002972

INTRODUCTION

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SUPPLEMENTAL RESTRAINT SYSTEM(SRS)

52B-14

COMPONENT LOCATION

AC003193AB

DATA LINK CONNECTOR

SIDE IMPACT SENSOR

SIDE IMPACT
SENSOR

CENTER
PILLAR

FRONT
OF
VEHICLE

SRS-ECU

SERVICE PRECAUTIONS

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SUPPLEMENTAL RESTRAINT SYSTEM(SRS)

52B-15

SERVIC E PR ECA UTIO NS

M1524000300080

WARNING

•

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.

•

After disconnecting the battery cable, wait 60
seconds or more before proceeding with the
following work. The SRS system 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.

•

Battery posts, terminals and related accessories
contain lead and lead compounds. WASH HANDS
AFTER HANDLING.

•

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

P.52B-61

.

•

Never Attempt to Repair the Following
Components: SRS-ECU, Clock Spring, Air Bag
Module, Side Impact Sensor. If any of these
components are diagnosed as faulty, they should
only be replaced, in accordance with the
INDIVIDUAL COMPONENT SERVICE procedures in
this manual, starting on page

P.52B-65

.

•

Do not attempt to repair the wiring harness
connectors of the SRS. If any of the connectors are
diagnosed as faulty, replace the wiring harness. If
the wires are diagnosed as faulty, replace or repair
the wiring harness according to the following
table.

ACX00583

INSULATING TAPE

BATTERY

BATTERY CABLE (–)

AC

AC002967AB

SRS-ECU CONNECTOR
<VEHICLES WITHOUT SRS SIDE AIR BAG>

<VEHICLES WITH SRS SIDE AIR BAG>

SRS-ECU TERMINAL
NO.

DESTINATION OF HARNESS

CORRECTIVE ACTION

3

Body wiring harness

→

Ground

Correct or replace the body wiring
harness.

4

Body wiring harness

→

Instrument

panel wiring

→

SRS warning light

Correct or replace each wiring harness.

5, 6

Body wiring harness

→

Air bag module

(Front passenger's side)

Correct or replace the body wiring
harness.

SERVICE PRECAUTIONS

TSB Revision

SUPPLEMENTAL RESTRAINT SYSTEM(SRS)

52B-16

NOTE: *Vehicles with side air bags

WARNING

•

Inspection of the SRS-ECU connector harness
should be carried out by the following procedure.
Insert the backprobing tool into connector from
harness side, and connect the tester to
backprobing tool. If any tool other than
backprobing tool is used, it may cause damage to
the harness and other components. Furthermore,
measurement should not be carried out by
touching the backprobing tool directly against the
terminals from the front of the connector. The
terminals are plated to increase their conductivity,
so if they are touched directly by the backprobing
tool, the plating may break, which will decrease
reliability.

•

The SRS components should not be subjected to
heat over 93

°°°°

C(200

°°°°

F

),),),),

so remove the SRS-ECU, air

bag module, and clock spring before drying or
baking the vehicle after painting.

•

After servicing the SRS system, check the warning
light operation to make sure that the system
functions properly. (Refer to

P.52B-3

.)

•

Make certain that the ignition switch is
"LOCK"(OFF) position when the scan tool is
connected or disconnected.

•

If you have any questions about the SRS system,
please contact the MMSA Tech Line.

7, 8

Body wiring harness

→

Clock spring

→

Air bag module (Driver's side)

Correct or replace each wiring harness.
Replace the clock spring.

9

Body wiring harness

→

Junction block

(fuse No.5)

Correct or replace the body wiring
harness.

12

Body wiring harness

→

Junction block

(fuse No.13)

Correct or replace the body wiring
harness.

16

Body wiring harness

→

Data link

connector

Correct or replace the body wiring
harness.

21*, 22*

Body wiring harness

→

Side air bag

module (LH)

Correct or replace the body wiring
harness.

23*, 24*

Body wiring harness

→

Side air bag

module (RH)

Correct or replace the body wiring
harness.

34*, 35*, 36*

Body wiring harness

→

Floor wiring

harness

→

Side impact sensor (LH)

Correct or replace each wiring harness.

40*, 41*, 42*

Body wiring harness

→

Floor wiring

harness

→

Side impact sensor (RH)

Correct or replace each wiring harness.

SRS-ECU TERMINAL
NO.

DESTINATION OF HARNESS

CORRECTIVE ACTION

AC003072

SRS-HARNESS CONNECTOR

SRS-ECU HARNESS CONNECTOR
(REAR SIDE)

AB