Kia Sedona: Description and Operation
Third generation YP (2014-2024) / Kia Sedona YP Service Manual / Body Electrical System / Blind Spot Detection System / Description and Operation
| Description |
BSD system uses two magnetic wave radar sensors attached on
the rear panel to measure the distance from the following vehicles and
provide sensing and (visual and auditory) alarms for any vehicle that
enters the blind spot.
| – |
Blind Spot Detection (BSD) : Senses other vehicles in the BSD
zone and displays the BSD warning lamp on the side mirror to inform the
driver.
Warning lamp blinks ON when driver turns on the turn signal lamp to enter the lane where another vehicle is. |
| – |
Lane Change Assist (LCA) : Senses other high-speed vehicles
entering the LCA zone and displays the BSD warning lamp on the side
mirror to inform the driver.
Warning lamp blinks ON when driver turns on the turn signal
lamp without recognizing any sudden approaching vehicle from the same
direction. |
| – |
Rear Cross Traffic Alert (RCTA) : On detecting an approaching
vehicle from the rear while reversing, it generates alarm to inform the
driver. |
System Operating Mode
| 1. |
When starting the engine with the switch OFF, OFF mode is ON.
※ The systems can be separately controlled based on each
activation conditions. For example, BSD & LCA system is ON by BSD
switch button and RCTA system is ON by RCTA USM switch. |
| 2. |
When pressing ON switch in OFF mode, Passive mode is ON. |
| 3. |
If starting the engine with the switch OFF, Passive mode is ON.
※ When IGN is ON, the switch is in the initial state: The last position is kept.
|
| 4. |
If you start the engine with BSD switch ON or if you turn on
BSD & LCA with BSD switch off, the warning lamp of the door mirror
turned on for 3 seconds. |
| 5. |
If the activation conditions (speed and curvature radius) are met while driving, Active mode is ON(warning issued). |
| 6. |
If the activation conditions (speed or curvature radius) are not met while driving, Passive mode is ON(warning suppressed). |
| 7. |
Depending on the detected errors, BSD & LCA system (including RCTA system) becomes Fail mode. |
| 8. |
If the detected error is removed, BSD & LCA system (including RCTA system) changes to the last mode before Fail mode. |
| 9. |
If pressing OFF switch while the system is running, the system becomes OFF mode.
※ Since the systems controlled separately, only BSD &
LCA system becomes OFF mode when pressing BSD switch OFF. And only RCTA
system becomes OFF mode when choosing RCTA USM OFF. |
Warning Condition
| 1. |
Warning zone
|
| 2. |
Conditions for BSD warning ON
 The entire body of the target vehicle is located behind the line A. Any part of the target vehicle pass the line B. Any part of the target vehicle passes the line D and Hysteresis In. The entire part of the target vehicle passes the line E and Hysteresis In.
|
| 3. |
Conditions for BSD warning OFF
The entire body of the target vehicle moves before the line A. The entire body of the target vehicle moves behind the line B. The entire body of the target vehicle passes the line D and Hysteresis Out. The entire part of the target vehicle passes the line E and Hysteresis Out.
|
| 4. |
Conditions for LCA warning ON
The entire body of the target vehicle is located behind the line B. Any part of the target vehicle pass the line C. Any part of the target vehicle passes the line D and Hysteresis In. The entire part of the target vehicle passes the line E and Hysteresis In. In the all above condition, TTC(Time to Collision) is not less than 4.5 sec.
|
| 5. |
Conditions for LCA warning OFF
The entire body of the target vehicle is located before the line B. The entire body of the target vehicle pass the line C. The entire body of the target vehicle passes the line D and Hysteresis Out. The entire body of the target vehicle passes the line E and Hysteresis Out. In the all above conditions, TTC(Time to Collision) is not more than 4.5 sec.
|
| 6. |
Sensor activation conditions
BSD & LCA switch (indicated by the switch LED) is on. Vehicle Speed: 30km/h or faster Curvature radius: 100m or more Relative car speed: All except -10 ~ 250㎞/h("-" means overtaking the preceding vehicle) |
| 7. |
Sensor deactivation conditions
BSD & LCA switch (indicated by the switch LED) is off. Vehicle Speed: 28 km/h or slower Curvature radius: 70m or less Relative car speed: All except -10 ~ 250㎞/h("-" means overtaking the preceding vehicle) |
| 8. |
System control prohibition
The radar is covered by debris: System conditions - Blockage message is outputted
The radar installation is damaged by an outside shock: Send the error code BSD & LCA system fails: Send the error code The radar is overheated: System conditions - Over Temperature message is outputted. |
| 9. |
Rear Cross Traffic Alert (RCTA)
This function helps the
driver to detect an approaching vehicle from the rear that cannot be
visually identified when the driver reverses to pull the vehicle out
from a parking spot. A warning is generated for
the target vehicle if it is within two seconds based on TTC (Time to
Collision). Pedestrians are not considered as approaching targets when
warning the driver. (Warning may not be generated.)
|
Components and Components Location
Components
1. BSD unit2. BSD switch3. BSD warning lamp (Built in the outside mirror)4. Cluster
...
Repair procedures
Diagnosis With GDS
1.
BSD system defects can be quickly diagnosed by the GDS. GDS
quickly operates actuator to monitor input/output values and to
self-diagnose.
2.
Connect the cable of GDS ...
Other Information:
Barometric Pressure Sensor (BPS) Repair procedures
Inspection
1.
Connect the GDS on the Data Link Connector (DLC).
2.
Measure the output voltage of the BPS at idle and IG ON.
Pressure [kPa (kgf/cm², psi)]Output Voltage (V) [Ref=5V]10.0 (0. ...
Components and Components Location
Component Location
...
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