Mitsubishi Galant (2004+). Manual - part 1620

AIR BAG MODULES AND CLOCK SPRING

TSB Revision

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-373

CAUTION

To prevent damage to scan tool MB991958, always turn the 
ignition switch to the "LOCK" (OFF) position before con-
necting or disconnecting scan tool MB991958.
3. Connect scan tool MB991958 to the data link connector.
4. Turn the ignition switch to the “ON” position.
5. Check DTCs using scan tool MB991958 to ensure entire 

SRS operates properly.
At this time, check that no DTC except B1400, B1410, 
B1480 and B1490 are set.

DANGER

Wait at least 60 seconds after disconnecting the bat-
tery cable before doing any further work. (Refer to 

P.52B-26

).

WARNING

Battery posts, terminals and related accessories con-
tain lead and lead compounds. WASH HANDS AFTER 
HANDLING.

6. Turn the ignition switch to the "LOCK" (OFF) position. 

Disconnect the negative (

−) battery cable and tape the 

terminal to prevent accidental connection and air bags 
deployment.

.

>>B<< CLOCK SPRING INSTALLATION

WARNING

Ensure that the clock spring’s mating marks are prop-
erly aligned. If not, the steering wheel may not rotate 
completely during a turn, or the flat cable in the clock 
spring could be damaged, This would prevent normal 
SRS operation and possibly cause serious injury to 
the driver.

1. Align the mating marks of the clock spring. 

<Mating Mark Alignment>
Turn the clock spring clockwise fully. Then turn it back 
approximately 3-3/4 turns counterclockwise to align the 
mating marks.

2. Turn the front wheels to the straight-ahead position. Then 

install the clock spring to the column switch.

.

AC305412

AB

MB991910

DATA LINK

CONNECTOR

MB991824

MB991827

AC306756AB

MATING MARKS

AIR BAG MODULES AND CLOCK SPRING

TSB Revision

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-374

>>C<< STEERING WHEEL ASSEMBLY/AIR BAG MODULE 
ASSEMBLY INSTALLATION

CAUTION

When installing the steering wheel and air bag module, 
ensure that the harness of the clock spring does not 
become caught or tangled.
1. Before installing the steering wheel and air bag module, turn 

the vehicle’s front wheels to the straight-ahead position and 
align the mating marks of the clock spring.

2. After securing the steering wheel, turn the steering wheel all 

the way in both directions to confirm that the steering wheel 
rotation is normal.

.

>>D<< POST-INSTALLATION INSPECTION
1. Reconnect the negative (

−) battery cable.

2. Turn the ignition switch to “ON” position.
3. Does the "SRS" warning light illuminate for approximately 

seven seconds, and go out?

4. If yes, the SRS system is functioning properly. If not, refer to 

P.52B-32

.

INSPECTION

M1524002500422

.

AIR BAG MODULE CHECK

DANGER

Never attempt to measure the circuit resistance of the 
air bag modules (squib), even if you are using the 
specified tester. If the circuit resistance is measured 
with a tester, accidental air bag deployment will 
result, and possible serious personal injury.

WARNING

If any component damage is found during the follow-
ing inspection, replace the air bag module with a new 
one. Dispose of the old one according to the specified 
procedure. (Refer to 

P.52B-388

).

1. Check the pad cover for dents, cracks or deformation.

AC307341

SRS WARNING LIGHT

AB

AIR BAG MODULES AND CLOCK SPRING

TSB Revision

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-375

2. Check the connectors for damage, the terminals for 

deformation, and the harness for binding.

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

deformation.

4. Install the air bag module (driver’s side) to the steering 

wheel and check fit and alignment with the steering wheel. 

5. Install the air bag module (front passenger’s side) to the 

instrument panel and front deck crossmember and check fit 
and alignment.

.

FRONT SEATBACK ASSEMBLY WITH SIDE-AIRBAG 
MODULE CHECK

DANGER

Never attempt to measure the circuit resistance of the 
air bag module (squib), even if you are using the 
specified tester. If the circuit resistance is measured 
with a tester, accidental air bag deployment will 
result, and possible serious personal injury.

WARNING

If any improper part is found during the following 
inspection, replace the front seatback assembly with 
a new one. Dispose of the old one according to the 
specified procedure. (Refer to 

P.52B-388

).

1. Check the air bag module deployment section for dents or 

deformation.

2. Check the connector for damage, the terminals for 

deformation, and the harness for binding.

.

AC307662AB

<DRIVER'S SIDE>

<FRONT PASSENGER'S SIDE>

INFLATOR CASE

CONNECTOR

CONNECTOR

INFLATOR 
CASE

AC206854

AIR BAG MODULE
DEPLOYMENT
SECTION

AB

AIR BAG MODULES AND CLOCK SPRING

TSB Revision

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-376

CLOCK SPRING CHECK
If any malfunction is found in the following inspections, replace 
the clock spring with a new one.
1. Check the connectors and protective tube for damage, and 

the terminals for deformation.

2. Visually check the case for damage.
3. Check to see that there is a charge (continuity) between the 

C-306 clock spring connector terminal 1 and C-304 horn 
switch.

CAUTION

 Do not directly insert a probe, etc. into the terminal from 
the front of the connector.
4.  Insert the special tool (MB991222) from behind the airbag 

module connector of the C-305 driver's side.

5.  As shown in the figure, connect the circuit tester to the 

special tool (MB991222) and check to see that there is a 
continuity between the terminals.

1 2 3 4 5 6

AC306765

D-306 CLOCK SPRING
CONNECTOR

C-304 
HORN SWITCH
CONNECTOR

AB

CASE

PROTECTIVE
TUBE

C-305 AIR BAG
MODULE
CONNECTOR

AC306759

CLOCK SPRING

PLOBE
(MB991222)

DIGITAL
MULTI-METER

AB

C-305 AIR BAG 
MODULE CONNECTOR 
(DRIVER'S SIDE)

C-305 AIR BAG 
MODULE CONNECTOR 
(DRIVER'S SIDE)