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 the Body group - Seat)
|
|
3. |
Remove the OCS assembly.
(Refer to the Body group - Seat)
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Installation
|
OCS(Occupant Classification System) is utilizing a robust weight
measuring technology. Thus, if any of the following conditions occur,
WCS reset and accuracy check should be performed.
| •
|
The WCS ECU or any of the sensors is replaced.
|
| •
|
The vehicle is brought to the repair shop due to an accident
or a crash 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.
|
|
|
1. |
Install the OCS in the front passenger seat assembly.
(Refer to the Body group - Seat)
|
|
2. |
Install the front passenger seat assembly. (Refer to the Body
group - Seat)
|
|
3. |
Reconnect the battery negative cable.
|
|
4. |
After installing OCS, perform the WCS reset and accuracy check
with the GDS.
|
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 command zero operation should
be finished normally. Make sure the procedure be finished normally.
|
|
(1) |
Adjust the seat position according to the table below.
Item
|
Remark
|
Seat track position
|
Rearmost position
|
Seat recliner angle
|
Normal (upright)
|
Head rest position
|
Lowest position
|
Lifter position
|
Lowest position
|
Make sure seat belt not to be buckled, and the belt tension
be normal.
|
|
(2) |
Connect the GDS connector to the data link connector located
under the crash pad.
|
|
(3) |
Turn the ignition switch on and power on the GDS.
|
|
(4) |
Perform the WCS reset by using the GDS.
[System selection screen]
Vehicle Selection_Airbag_Weight
Classification System _WCS RESET_ENTER
(then, Completed is displayed)
|
|
(5) |
Perform the accuracy check by using the GDS.
[System selection screen]
Vehicle Selection_Airbag_Weight
Classification System_WCS RESET_ESC
|
|
(6) |
Confirm the measured weight is within the standard value.
And then press "ESC".
specification
: -6kg ~ 6kg (-13.23lb ~ 13.23lb)
|
|
|
(7) |
Place a 37kg (81.57lb) weight on the passenger front seat.
|
|
(8) |
Confirm that the result of accuracy check is within the
standard value.
specification
: 31kg ~ 43kg (68.34lb ~ 94.79lb)
|
|
• |
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.
|
|
• |
If the WCS reset operation not completed
normally, replace the seat leg assembly.
|
|
|
|
|
5. |
After installing the OCS, confirm proper system operation:
| A. |
Turn the ignition switch ON, the SRS indicator should
be turned on for about six seconds and then go off.
|
| B. |
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.
|
|
Circuit Diagram (1)
Circuit Diagram (2)
Circuit Diagram (3)
SRSCM Connector Terminal
Pin
Function (Connector A)
Pin
Function (Co ...
Hyundai Sonata: Weight Classification System (WCS). Repair procedures
Schematic Diagrams