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.
9U-10 CONTROL UNITS AND SYSTEM
MAINTENANCE AND REPAIR
ON-VEHICLE SERVICE
STICS
STICS, electonic control warning device, controls 16 functions and contains the self diagnostic function detecting any
malfunctions in the sensors and load.
Removal & Installation Procedure
1. Disconnector the battery negative cable.
2. Unscrew 4screw from center console box.
3. Remove the center console box and disconnect 3 STICS
connectors.
4. Unscrew 3 fastening bolts and remove the STICS unit.
5. Installation should follow the removal procedure in the
reverse order.
1 STICS Unit
2 STICS Connector3 STICS Unit Fastening Bolt
4 Parking Brake Lever
