Kia Forte: Body Electrical System / Front Camera System
Components and components location
1. LKA ON/OFF switch
2. Instrument cluster
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3. Front view camera
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1. LKA ON/OFF switch
2. Instrument cluster
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3. Front view camera
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Description and operation
System Blockdiagram
System function
Camera unit of the LKA processes below function with the video signal inputted
| 1. |
LKA (Lane Keeping Assist) : The system is designed to help recognize
the lane ahead and to give off a lane departure warning when the vehicle
starts moving out of the lane by using the camera image and vehicle signal
information.
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| 2. |
High Beam Assist (HBA) : Detects head lamp and tail lamp lights of vehicle
ahead and turns the high beam ON/OFF.
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| 3. |
Driver Attention Warning (DAW) : Express alert and warning message through
analysis driving pattern.
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| 4. |
Highway Driving Assist (HDA) : This is integretion control function to
keep the distance between vehicles and lane on highway through interlock
with SCC radar.
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Lane Keeping Assist (LKA)
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High Beam Assist (HBA)
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Lane Keeping Assist
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When detecting light from vehicle in front
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Driver Attention Warning (DAW)
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Highway Driving Assist (HDA)
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Alert when the driver drives with inattention.
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Controlling steering and speed on high way.
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System Activation Conditions
LKA Controller Typical Operating Conditions
Note that operating conditions are tuned to meet the customer requirements .
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Vehicle speed within 60 - 175 km/h (37.2 - 108.7 MPH)
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A lane is clearly visible.
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Driver is not overriding the system – applying a large steering torque.
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Directional (including hazard) signals are off.
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The lane width is within 2.8m to 4.3m
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The driver’s hands are on the steering wheel.
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The absolute steering angle is < a given value (e.g 90 degrees).
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The maximum allowable time for maximum torque application has not been
exceeded. (90 seconds)
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Reverse or EPS city mode is not engaged.
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No fault is present in the system.
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Activation conditions for HBA are as follows:
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HBA is activated when the light switch is at 'AUTO' and the high beam
switch is ON (push).
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| – |
HBA is activated when the function is enabled and the vehicle speed is
45 km/h or higher, and automatically deactivated when the vehicle speed
is 35 km/h or less.
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| – |
HBA is not activated in daytime even if the activation conditions are
satisfied.
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| – |
In nighttime, HBA detects the preceding vehicle's lamp light and automatically
turns the high beam on or off.
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Activation conditions for DAW are as follows:
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The function should be enabled on the User Setting Menu (USM) of the
cluster.
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| – |
The function should be enabled and the vehicle speed should be 60 - 175
km/h (37.2 - 108.7 MPH)
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Repair procedures
Variant Coding Procedures
| 1. |
Incase of replacement of Front Camera Unit with a new one, it is required
to perform variant coding because the vehicle has to study option specifications
of old vehicle.
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| 2. |
Finish the variant coding procedure following the information on the
connected KDS screen.
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Service Point Target Auto Calibration (SPTAC)
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When you need calibration:
| • |
Front view camera is removed and mounted
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| • |
Replace front view camera with a new one
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| • |
Windshield glass changed
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| • |
Front view camera coupler of the windshield glass is deformed
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Front view camera SPTAC provides the method for the service technician to calibrate
the camera by aligning the calibration target (SST: 09890-3V100) with the vehicle
on a level ground.
If the calibration is not completed within the specified tolerance front view
camera "System Out of Calibration" DTC is indicated.
| 1. |
Method for Correct Alignment of Calibration Target
| (1) |
In order to complete the calibration of the front view camera
successfully, install the calibration target as follows:
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Install the target (SST: 09890-3V100) vertical to the
ground and from the camera referring to the below tolerance
angle.
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The tolerance ± 1° for the left and right gradient
is very important and is sensitive to the flatness
of the ground.
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Install the compensator vertically using the
Level Laser (SST: 09958-3T060 or 09964-C1200).
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Arrange the Level Laser (A) on the center of
the vehicle by installing it on the roof center
above the vehicle's front windshield (same for both
short and long distance calibrations) .
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| (2) |
Have the laser illuminate starting from the roof center and to
all the way to the center of the target, passing through the emblem
center.
* The level laser must be set to 'ON' and the holding (locking)
function is not used.
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Target to be mounted to rigid backer material
to maintain flatness requirements.
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Target has reflective (not faded or poorly painted)
markings that are unlike from lane features.
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Target is 30 cm wide and 100 cm tall.
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Mounting area must NOT have cross hatch patterns
or textual markings near the target.
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Target should be well lit for optimal performance
using non-fluctuating illumination. There shall
be no continuous shadows cast on the target.
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The light should be directed toward the target
front and the target front should be brighter than
the target rear and target.
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| 2. |
Service Point Target Auto Calibration(SPTAC) Procedure
| (1) |
It is recommended to check vehicle toe-in and tire pressure levels
to ensure proper alignment of the camera to the "world" before proceeding
with calibration.
The vehicle to run the calibration routine is to be at nominal
production loading capacity.
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| (2) |
Windshield must be clean and silk-screen checked so that there
is no blockage of the camera.
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| (3) |
Service technician connects the diagnostic connector and starts
the vehicle. The MFC should not be activated by pressing the switch.
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| (4) |
The service calibration routine may not run correctly if any
system level fault is active.
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| (5) |
If working with a replacement ECU: the service technician initiates
the SPTAC Reset configuration.
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| (6) |
Service technician either aligns the vehicle to the target or
the target to the vehicle.
| a. |
Locate the bottom of the target 90cm from the ground
(max. tolerance: 1cm).
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Locate so that the central axis of the target
and the central axis of the vehicle match (max.
tolerance: 3cm).
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| b. |
Locate the short-distance target (A) so that it adheres
by 0cm (B) to the bumper front (max. tolerance: 5cm).
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| c. |
The location of the long-distance target (C) is 100cm
(D) before the bumper (max. tolerance: 5cm).
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The tolerance angle of target in horizontal
direction is ± 10°.
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The tolerance angle of target in vertical
direction is ± 5°.
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The tolerance angle of target in facade
center is ±1°.
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| (7) |
The technician should complete the short-distance calibration
after checking the target location and "OK" message on the KDS.
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| (8) |
The technician should complete the long-distance calibration
after checking the target location and "OK" message on the KDS (conduct
the calibration twice: short and long distances).
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| (9) |
Perform the DTC deletion.
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| (10) |
Restart after engine OFF.
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Test Drive
| – |
Be sure to perform test drive to check for normal operation after
performing calibration.
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Drive on straight road (of longer than 500 m) with 2 white or
yellow lane marks at speed of over 60km/h (64mph), and check for
the alert as you intentionally steer close to the lane mark.
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LKA operates properly if the lane mark segment space is less
than 8 m.
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Perform test drive on car-only road or on a highway.
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The LKA may not activate properly in the following conditions
The LKA may not activate properly when:
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It is difficult to distinguish the lane from the road due to
dust built up on the lane.
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It is difficult to distinguish the color of the lane line from
the road.
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There is a mark that looks like a lane line near the line.
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The lane line is indistinct or damaged.
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The number of lanes increases or decreases or the lane lines
are crossing (driving through toll plaza, toll gate, road merging
or dividing area, etc.).
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There are more than two lane lines.
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The lane is very wide or narrow.
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The lane is not visible due to snow, rain, stain, a puddle or
other factors.
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Shadows of objects (median strip, guard rail, noise barriers,
etc.) surrounding the road are casted on the lane.
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The lane is congested or it is replaced by a structure in a construction
area.
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There is a indication on the road surface such as crosswalk or
road signs.
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The lane inside the tunnel is covered with dust or oil.
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The brightness outside changes suddenly such as when entering
or exiting a tunnel.
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The head lamps are not on at night or in a tunnel, or light level
is low.
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There is a boundary structure.
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Light such as street light, sunlight or oncoming vehicle light
reflects from the water on the road.
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Driving with the sun in front of you.
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Driving on the bus-only lane or on the left/right of the lane.
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The lane suddenly disappears at certain locations such as at
the intersection.
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The distance from the vehicle ahead is extremely short or that
vehicle drives hiding the lane line.
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Driving on a steep grade or a sharp curve.
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The vehicle vibrates heavily.
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The surrounding of the inside rear view mirror temperature is
high due to direct sun light.
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The lens or windshield is covered with foreign matter.
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The sensor cannot detect the lane because of fog, heavy rain,
or heavy snow.
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The windshield is fogged by humid air in the vehicle.
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Putting something on the crash pad.
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The LKA may not activate properly in the following conditions:
| • |
The LKA is a system to prevent lane departure and assist steering.
In any case, do not rely on the steering assist system, and the
driver must take the necessary precautions to determine safety matters.
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| – |
Driver is responsible for being aware of surroundings and steering
the vehicle for safe driving practices.
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Do not steer the steering wheel suddenly when the steering wheel
is being assisted by the system.
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LKA helps prevent the driver from moving out of the lane unintentionally
by assisting the driver’s steering.
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LKA is not working if the camera cannot detect the lane or if
the vehicle speed does not exceed 64km/h(40mph),
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Do not disassemble MFC temporarily for tinted window or attaching
any types of coatings and accessories.
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Do not allow any water or liquid to contact the MFC.
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Do not remove the MFC parts and do not damage the MFC by a strong
impact.
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Do not put objects that reflect light on the crash pad.
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Excessive noise can make the LKA alarm sound unheard.
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Schematic diagrams
Circuit Diagram
Repair procedures
Replacement
1.
If the E-Call switch needs to be replaced, replace the overhead console
lamp assem ...
Schematic diagrams
Circuit Diagram
Repair procedures
Removal
When replacing the LKA switch, check ...
Other information:
Components and components location
Components
1. Front wheel speed sensor
2. Front wheel speed sensor connector
Repair procedures
Removal and Installation
1.
Disconnect the battery negative terminal.
2 ...
Repair procedures
Replacement
1.
Pull down the rear door window glass to the lowest level by pressing
the power window glass switch.
2.
Remove the rear door belt outside weatherstrip (A).
3.
To install, reve ...
Emergency Call (E-Call) Switch
Front View Camera Unit