Kia Cee'd: Adaptive Front Lighting System / Repair procedures

Inspection
Initialization and diagnosis sequence by using diagnostic equipment
Below content summarize the procedure for A/S using Diagnostic equipment
Download Parameter
1.
Select "AFLS" menu after selecting a vehicle.

2.
Select "Parameter download" menu for define a characteristc of vehicle.

3.
Select the LHD/RHD and MT/AT option refer to the vehicle options.

4.
When "Parameter download" is done,display belows.

System Calibration
  
This menu is applied only if vehicle has a Steel suspension
1.
Select "AFLS" menu after selecting a vehicle.
2.
Select "Sensor initializing-Non ECS" if vehicle has a Steel suspension

3.
When "System calibration" is done,display belows.

4.
When "System calibration" is not done,display as belows.

Actuator Test
When it replace H/Lamp Unit, it necessarily check up by operating actuator test.
1.
Select "AFLS" menu after selecting a vehicle.
2.
Select "Actuator test"

3.
Select DBL or HLL test by using "Start" button.
4.
In case select DBL or HLL ACTUATOR DRIVE TO MAX POS(swivelling)
In case select "Start" button : drive to max position right direction (15°)
In case select another item : back to initial position

AFLS Fail-safe Function
If the error condition of AFLS occurred during system operation, the system have to fail-safe reaction for prevent dazzling of opposite side driver
AFLS Fail-safe Index
 
Part
Content
Fail-safe Reaction
Tell-tale
Result
ECU
ECU Hardware
(A/D Converter fail)
1) Levelling : staying in current POS
2) Swivelling : staying in current POS
-
ECU Software
(EEPROM/ROM fail)
1) Levelling : staying in current POS
2) Swivelling : staying in current POS
Control Unit not initialized
Calibration not performed
1) Levelling : drive to error POS (H-15)
2) Swivelling : drive to error POS (0°)
Levelling module
fault
Right
Short circuit
1) Right Levelling : staying in current POS
2) Left Levelling : normal operation
3) Swivelling : Normal operation
-
Over
temperature
LIN
communication
error
1) Right Levelling: staying in current POS(Before), drive to error POS
2) Left Levelling: normal operation
3) Swivelling : normal operation
Left
Short circuit
1) Left Levelling : staying in current POS
2) Right Levelling : normal operation
3) Swivelling : Normal operation
-
Over
temperature
LIN
communication
error
1) Right Levelling: normal operation
2) Left Levelling: staying in current POS(Before), drive to error POS
3) Swivelling : normal operation
Swivelling
module
fault
Right
Short circuit
1) Right Swivelling : staying in current POS
2) Left Swivelling : drive to error POS
3) Right Levelling : drive to error POS
4) Left Levelling : Normal operation
Tell-tale
Over temperature
Stall detected
LIN coummunication
LIN
fault
Before
1) Swivelling : staying in current POS
2) Lefvelling : drive to error POS
After
1) Swivelling : drive to error POS
2) Lefvelling : drive to error POS
DBL
supply
fault
Before
1) Swivelling : staying in current POS
2) Lefvelling : drive to error POS
After
1) Right Swivelling : staying in current POS
2) Left Swivelling : drive to error POS
3) Lefvelling : drive to error POS

Left
Short circuit
1) Left Swivelling : staying in current POS
2) Right Swivelling : drive to error POS
3) Left Levelling : drive to error POS
4) Right Levelling : Normal operation
Tell-tale
Over temperature
Stall detected
LIN coummunication
LIN
fault
Before
1) Swivelling : staying in current POS
2) Lefvelling : drive to error POS
After
1) Swivelling : drive to error POS
2) Lefvelling : drive to error POS
DBL
supply
fault
Before
1) Swivelling : staying in current POS
2) Lefvelling : drive to error POS
After
1) Left Swivelling : staying in current POS
2) Right Swivelling : drive to error POS
3) Lefvelling : drive to error POS
AXLE
sensor
Front &
Rear
external(5V) Sensor power supply fault
(short to ground or to Bat)
1) Levelling : drive to error POS
2) Swivelling : Normal operation
-
Front
FREQ_LOWER , FREQ_UPPER
1) Levelling : drive to error POS
2) Swivelling : Normal operation
Signal line open circuit
1) Levelling : drive to error POS
2) Swivelling : Normal operation
Signal line short circuit
Front sensor out of range
Front sensor out of
range
FREQ_LOWER , FREQ_UPPER
1) Levelling : drive to error POS
2) Swivelling : Normal operation
Signal line open circuit
1) Levelling : drive to error POS
2) Swivelling : Normal operation
Signal line short circuit
Front sensor out of range
Battery
battery voltage too high
1) Levelling: staying in current POS(Before), drive to error POS
2) Swivelling : staying in current POS(Before), drive to error POS
-
battery voltage too low
1) Levelling: staying in current POS(Before), drive to error POS
2) Swivelling : staying in current POS(Before), drive to error POS
LIN physical fault
Short circuit to battery or GND
(physical fault)
Before
1) Levelling : staying in current POS
2) Swivelling : staying in current POS
Tell-tale
After
1) Levelling : drive to error POS
2) Swivelling : drive to error POS
CAN
communication
fault
Speed
signal
fault
speed signal invalid
1) Levelling : Medium dynamic mode
2) Swivelling : drive to error POS
-
supplying ECU not available on
CAN
Steering
angle
signal
fault
Steering wheel sensor not O.K
(signal invalid)
1) Levelling : normal operation
2) Swivelling : drive to error POS
-
supplying ECU not available on
CAN
Gearbox
signal
fault
Reverse gear signal invalid
1) Levelling : normal operation
2) Swivelling : drive to error POS
-
supplying ECU not available on
CAN
Accelator pedal signal fault
Accelator pedal signal invalid
1) Levelling : Medium dynamic mode
2) Swivelling : Normal operation
-
supplying ECU not available on
CAN
Engine state signal
fault
Engine state signal invalid
1) Levelling : Normal operation, no operation(Before)
2) Swivelling : Normal operation, no operation(Before)
-
supplying ECU not available on
CAN
Yaw rate
signal
fault
Yaw rate signal invalid
1) Levelling : Normal no operation(Before)
2) Swivelling : Reduced performance
-
supplying ECU not available on
CAN
Brake pedal signal
fault
Brake signal invalid
1) Levelling : Medium dynamic mode
2) Swivelling : Normal operation
-
supplying ECU not available on
CAN

CAN
'Bus off'
fault
ECU is isolated from
the CAN network
Air suspension
1) Swivelling : drive to error POS
2) Levelling : drive to error POS
-
Steel
suspension
1) Swivelling : drive to error POS
2) Levelling : slow dynamic mode
Lamp unction
Signal Fault
Supplying ECU not available on CAN
1) Levelling : Normal operation
2) Swivelling : Normal operation
-

AFLS Setting Procedure
When it replace AFLS ECU or H/Lamp Unit or Height sensor, it operates in setting procedure by using Diagnostic equipment following belows.
When AFLS setting procedure operate, necessarily confirm suspension type and then download parameter.

※ DTC : Diagnostic Trouble Code
DBL : Dynamic bending Light
HLL : Head Lamp Leveling
Vehicle Condition While AFLS Setting
1.
Vehicle on an even surface
2.
No vehicle movement
3.
Gear position in P & N
4.
Ignition switched on & Engine RPM >500RPM
5.
Diagnostic equipment connected
6.
ALL ECUs on CAN mounted and activated
7.
Battery voltage > 10.5 V ( ECU supply to be ensured)
8.
Light switched
9.
AFLS ON or OFF
Action In Case Of Download Wrong Parameter
1.
Download Delivery Parameter
2.
Check up B1661(Parameter missing)
3.
Ignition OFF
4.
Ignition ON & Engine RPM > 500RPM
5.
Download matching Paratmer
Description and operation
Description Adaptive Front-lighting System (AFLS) AFLS(Adaptive Front-lighting System)is a headlamp orientation control system that takes into account both steering angle and ...

Adaptive Front Lighting System Description and operation
Description AFLS Unit(ECU) AFLS located in Cockpit Module is provided information of vehicle (steering wheel signal,vehicle speed, inclination of vehicle). Based on provide ...

Other information:

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