Connect GDS to DLC(Data Link Cable).

Ignition "ON" and engine "OFF".

Check the "Current Data" with GDS while changing sensor lever by hand.

Fig.1) Current Data of "AHLS" while changing sensor lever

∴ Degree of the height sensor is measured from 6 O'clock direction to 9 O'clock direction.

(6 O'clock direction = 0°, 9 O'clock direction = 90° / Normal Range = 0 ~ 90°)

Is the parameter changed as shown above?

	▶ The system is operating correctly at this time. Go to "Verification of Vehicle Repair" procedure.
	▶ Retry all of procedures once again. If the AHLS(Auto Headlamp Leveling System) ECU is in abnormal condition, replace it. Go to "Verification of Vehicle Repair" procedure.