SsangYong Musso. Manual - part 547

8B-18  SUPPLEMENTAL RESTRAINT SYSTEM(SRS)

MAINTENANCE  AND REPAIR

ON-VEHICLE SERVICE

AIR BAG MODULE

Removal & Installation Procedure

1. Remove the steering wheel rid (LH,RH) with a screwdriver.

Installation Notice

Each position mark (LH,RH) is stamped on the inner surface
of the rids.

Tightening Torque

7 - 11 Nm

3. Disconnect the connectors and remove the air bag module.

4. Installation should follow the removal procedure in the

reverse order.

2. Unscrew the bolts from both sides.

Installation Notice

SUPPLEMENTAL RESTRAINT SYSTEM(SRS)  8B-19

Air Bag

Horn (Relay)

Remote Control (Electronic Circuit)

CLOCK SPRING

General Specification

Voltage

Rating Operating Voltage

Current Rating

Air Bag Circuit Resistance

Isolating Resistance

Rotating Range

DC 12V

 DC 6 - 18V

10 - 30mA(6A,0.1second)

200 - 220mA

15mA

0.16 - 0.38

Ω

(-40°C - 85°C)

5M

Ω

2.7 - 3.1 Rotation from neutral

Position to Both Sides

Notice

!

Clock spring can not be repaired.

!

Do not disassemble or modify.

!

To adjust to the center position, rotate clockwise until it
stops and then rotate it counterclockwise 2.3 ± 0.2
revolutions and align marks. If not, airbag system can
not work normally and driver can be injured seriously.

8B-20  SUPPLEMENTAL RESTRAINT SYSTEM(SRS)

Removal & Installation Procedure

preceding work : removal of steering wheel

1. Turn the ignition switch to “OFF” position and disconnect

the battery negative cable. Start the procedure after waiting
over 3oseconds.

2. Unscrew 3 screws from lower cover on steering column shaft

and remove the lower cover.

3. Unscrew 4 screws from clock spring and remove the clock

spring

Installation Notice

!

Don’t try to repair and modify the clock spring.

!

When aligning the neutral position, turn to clockwise until it
stops, and turn to counter clockwise until the  marks are
aligned

SUPPLEMENTAL RESTRAINT SYSTEM(SRS)  8B-21

AIR BAG CONTROL UNIT(AC4)

Removal & Installation Procedure

AC4 is installed on the center portion of the front floor tunnel.
Built-in accelerometer sensor detects collision and determines
action or non-action and ignition time.

Notice

Do not disassemble the AC4 to repair. If defective, replace it.
AC4 should not be shocked or vibrated by dropping on the
ground or bumping.

Replace the AC4 with new after air bag inflation.

1. Disconnect the negative battery cable and wait for 30

seconds before starting service.

Notice

Though battery cable is disconnected, air bag control unit
will maintain backup power for 150ms and air bag can be
inflated, so wait for min.30 seconds.

2. Remove the console box and center fascia panel assembly.

3. Remove the heater control switch and audio assembly.

4. Remove the lower side panel of the driver’s portion and

glove box.

5. Remove the lower main panel.

6. Release the lock lever of the AC4 connector and disconnect

the connector.

7. Unscrew 3 nuts and remove the AC4.

Notice

For installation, horizontal position should be secured for
the better changes of collision pulse between the vehicle
body and air bag control unit.

8. Installation should follow the removal procedure in the

reverse order.

Inspection Procedure

1. Check AC4 case and welt bolts for crack or deformation.

2. Check connector, lock lever and terminal for deformation.

Notice

Replace the AC4 with new if dust, deformation or corrosion
found.