Kia Sedona (2008 year). Manual - part 43

front passenger side seat. The Occupant Classification System described in this information is Weight
Classification System (WCS) of strain gauge type. It consist of 4 weight sensors and ECU which is classifying
weight of occupant. It is installed on the seat leg assembly.

COMPONENTS

Fig. 13: Identifying Occupant Classification Sensor Components
Courtesy of KIA MOTORS AMERICA, INC.

REMOVAL

1. Disconnect the battery negative cable, and wait for at least three minutes before beginning work.

2. Remove the front passenger seat assembly. Refer to SEATS .

3. Remove the seat leg as an assembly. Refer to SEATS .

INSTALLATION

NOTE:

OCS is utilizing a robust weight measuring technology. Thus, if any of the
following conditions occur, WCS reset and accuracy check should be
performed.



The occupant classification ECU or any of the sensors is replaced.



The vehicle is brought to the repair shop due to an accident or a crash

2008 Kia Sedona EX

2008 RESTRAINTS SRS Control System - Sedona

Microsoft

Monday, May 24, 2010 3:54:16 PM

Page 11

1. Install the OCS equipped seat leg assembly. Refer to SEATS .

2. Install the front passenger seat assembly. Refer to SEATS .

3. Reconnect the battery negative cable.

4. After installing OCS, perform the WCS reset and accuracy check with the Hi-Scan Pro.

1. Adjust the seat position according to the table below.

SEAT POSITION ADJUSTING CONDITION

Make sure seat belt not to be buckled, and the belt tension be normal.

2. Connect the Hi-Scan Pro connector to the data link connector located under the crash pad.

3. Turn the ignition switch on and power on the Hi-Scan Pro.

4. Perform the WCS reset by using the Hi-Scan Pro.

[System selection screen]

Vehicle Selection_Air bag_02. Weight Classification System_04.WCS RESET_ENTER

(then, Completed is displayed)

5. Perform the accuracy check by using the Hi-Scan Pro.

[System selection screen]

even though the severity seems to be minor.



The telltale lamp is not illuminated when the passenger seat is not
occupied.



The telltale lamp is delayed more than 10 seconds to be turned off when
an adult passenger seats in.



The passenger seat is removed from the vehicle and reassembled.



Any accessories (side table, seatback table and seat cover, etc) are
replaced or installed.

NOTE:

Check that seat is not occupied and empty before performing the
operation. Make sure that the back pocket is empty. In order to perform the
accuracy check, the WCS reset operation should be finished normally.
Make sure the procedure be finished normally.

Item

Remark

Seat track position Rearmost position
Seat recliner angle Normal (upright)

Head reset position Lowest position

Lifter position

Lowest position

2008 Kia Sedona EX

2008 RESTRAINTS SRS Control System - Sedona

Microsoft

Monday, May 24, 2010 3:54:16 PM

Page 12

Vehicle Selection_Alrbag_02.Weight Classification System_04.WCS RESET_ESC

6. Confirm the measured weight is within the standard value. And then press "ESC".

Specification: -2.0 kg to 2.0 kg (-4.4 lbs. to 4.4 lbs.)

7. Place a 37 kg (81.57 lbs.) weight on the passenger front seat.

8. Confirm that the result of accuracy check is within the standard value.

Specification: 35-39 kg (77.16-85.98 lbs.)

5. After installing the OCS, confirm proper system operation: Turn the ignition switch ON, the SRS

indicator should be turned on for about six seconds and then go off.

Telltale lamp will turn on for 4 seconds and be turned off for 3 seconds. After the 7 seconds, it shall
remain off if the OCS does not require suppression and the passenger airbag is enabled.

NOTE:



When performing the accuracy check, use a solid metal weight and
place it at the center of the seat. If the weight made from liquid is
used or the weight slides, the check result may not accurate, and
could result in unwanted fail



When the measured weight deviates from the standard value, check
again all the fastening bolts are tightened properly. And make sure
there is no interference. During the tightening, be careful not to
deform the seat rail or seat structure. If the accuracy check is still not
inside the standard value, replace the seat leg assembly.



When WCS reset operation not finished normally, replace the seat leg
assembly.

2008 Kia Sedona EX

2008 RESTRAINTS SRS Control System - Sedona

Microsoft

Monday, May 24, 2010 3:54:17 PM

Page 13

2008 RESTRAINTS

SRS Control Module - Sedona

SRS CONTROL MODULE

DESCRIPTION

The primary purpose of the SRSCM (Supplemental Restraints System Control Module) is to discriminate
between an event that warrants restraint system deployment and an event that does not. The SRSCM must
decide whether to deploy the restraint system or not. After determining that pretensioners and/or airbag
deployment is required, the SRSCM must supply sufficient power to the pretensioners and airbag igniters to
initiate deployment.

The SRSCM determines that an impact may require deployment of the pretensioners and airbags from data
obtained from impact sensors and other components in conjunction with a safing function. The SRSCM will not
be ready to detect a crash or to activate the restraint system devices until the signals in the SRSCM circuitry
stabilize. It is possible that the SRSCM could activate the safety restraint devices in approximately 2 seconds
but is guaranteed to fully function after prove-out is completed. The SRSCM must perform a diagnostic routine
and light a system readiness indicator at key-on. The system must perform a continuous diagnostic routine and
provide fault annunciation through a warning lamp indicator in the event of fault detection. A serial diagnostic
communication interface will be used to facilitate servicing of the restraint control system.

COMPONENTS

2008 Kia Sedona EX

2008 RESTRAINTS SRS Control Module - Sedona

2008 Kia Sedona EX

2008 RESTRAINTS SRS Control Module - Sedona

Microsoft

Monday, May 24, 2010 3:53:40 PM

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