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.
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