Hyundai Genesis (DH): Auto Head Lamp Leveling Device / Auto Head Lamp Leveling Unit Troubleshooting

Hyundai Genesis (DH) 2013-2016 Service Manual / Body Electrical System / Auto Head Lamp Leveling Device / Auto Head Lamp Leveling Unit Troubleshooting

Inspection with GDS
Initialization and diagnosis sequence by using GDS equipment.
The following is the summarized A/S procedure.
No
Procedure
1
Park the vehicle on level ground
2
Tire check
3
IGN1 ON
4
Head lamp Low Beam ON
5
Connection with diagnostic tool
6
Initial command by diagnostic tool
7
Clear DTC Code
8
IGN1 OFF > ON
9
Re- Connection with diagnostic tool
10
Checking of HLLD output value as 15% and DTC Code
11
HLLD actuating by diagnostic tool command
12
Head lamp mechanical Initial Aiming

   
1.
Empty the vehicle of all the load and park it on level ground.
2.
Check the HLLD output value (15%) after initial setting.
3.
After the electrical initial setting with a diagnostic tool, perform the mechanical aiming.
1.
Select the vehicle model and "Auto Head Lamp Leveling System (AHLS)"

2.
Check the sensor output value and data of each item on the system information screen.

3.
To perform functional test on AHLS outputs, select "Actuation Test".

4.
Select " Parameter setting & Zero position Initial".

5.
Confirm that AHLS operate forcefully in "Head lamp leveling" menu.

6.
To check the DTC of the head lamp leveling system, select "Diagnostic trouble codes"

    Inspection 1. Ignition "ON". 2. Turn on the head lamp switch. 3. Check that the aim of the head lamp changes smoothly when the head lamp leveling device switch is turned on.

    Other information:

    Hyundai Genesis (DH) 2013-2016 Service Manual: Auto Head Lamp Leveling Unit Description and Operation

    Description According to driving environment and loading state of vehicle, head lamp lighting direction is changed to keep the driver's visibility range and to protect the driver's vision from glare, aiming at safety driving. Sensor integrated ECU mounting on the rear center arm drives the actuator mounting on the head lamp since sens

    Hyundai Genesis (DH) 2013-2016 Service Manual: Intake Actuator Repair procedures

    Inspection 1. Turn the ignition switch OFF. 2. Disconnect the intake actuator connector. 3. Verify that the intake actuator operates to the fresh position when connecting 12V to terminal 3 and grounding terminal 4. Verify that the intake actuator operates to the recirculation position when connected in reverse.

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