Programming and Relearning

Initialization of Headlight Auto Leveling System

Initialization of the headlight auto leveling system is to make the headlight auto leveling control module learn signals which are fed from the height sensors when the vehicle is at the standard height. Standard height means the height of the vehicle with a driver but without load in it. Initialization of the headlight auto leveling system is required when any of the following works has been performed.

- Replacement of headlight auto leveling control module
- Removal of front and/or rear height sensor link from lower arm
- Removal of front and/or rear height sensor from suspension frame
- Replacement of front and/or rear height sensor

Without initialization of the headlight auto leveling system, it is not possible to obtain its proper function. Also, if the headlight auto leveling system is not initialized after replacing the headlight auto leveling control module, the headlight leveling auto warning light in the combination meter flashes.
1) Observe the following instructions.
- Park vehicle on level ground.
- Adjust air pressure of all tires to the specified value respectively.
- Bounce vehicle body up and down by hand to stabilize suspension.
2) Turn ignition switch to ON position.
3) Perform Headlight Auto Leveling Warning Light Check (If Equipped) Headlight Auto Leveling Warning Light Check (If Equipped).
4) Connect service wire (2) to terminals of diagnosis connector (1).
5) Perform Steps a) through b) described below within 20 seconds after Step 4).
a) Turn lighting switch (3) to "HEAD" position and then turn lighting switch to OFF position.
b) Repeat Step a) 2 times.






6) Confirm that headlight auto leveling warning light (1) flashes 3 times and turns off, which indicates that system initialization was completed properly. If it does not turn off after flashing 3 times, it means initialization was not successful. In such case, turn off ignition switch and perform Steps 1) to 6) again.