Innova SDS43 SDS-Inspector: Headlamp Calibration

Purpose

To explain how to relearn the Headlamp Leveling Sensor while using the Innova SDS50 SDS-Tech Tablet Scan Tool.

Introduction

The Headlamp Leveling Sensor is a component in modern vehicles that is responsible for automatically adjusting the aim or level of the headlights based on the vehicle's pitch and load conditions. It is designed to ensure that the headlights maintain proper alignment with the road surface, regardless of the vehicle's orientation or weight distribution.

By automatically adjusting the headlight aim, the Headlamp Leveling Sensor improves the driver's comfort and convenience. It eliminates the need for manual adjustment of the headlight aim when driving under different load conditions or on uneven surfaces. The sensor ensures that the headlights always provide an appropriate and well-illuminated view of the road.

Over time, vibrations, shocks, or regular wear and tear can cause the headlamp leveling sensor to become misaligned or lose its calibration. Calibration ensures that the sensor is accurately measuring the vehicle's inclination and providing correct input to the headlamp control module. If the sensor is not calibrated properly, it may result in incorrect headlamp aiming, leading to poor visibility or glare for other drivers.

Procedure

Step 1 - Connect Innova SDS50 SDS-Tech Tablet Scan Tool to the vehicle and select 'Workshop Tools' function

First, connect the Innova SDS50 SDS-Tech Tablet Scan Tool to your vehicle via the On-Board Diagnostics (OBD) connector to retrieve the vehicle's information, such as Vehicle Identification Number (VIN) and model.

Then, select the 'Workshop Tools' section.

Step 2 – Select the ‘Headlamp Calibration’ function

The Innova SDS50 SDS-Tech Tablet Scan Tool shows the list of functions available for your vehicle. Choose the ‘Headlamp Calibration’ item from the list.

Step 3 – Choose the function to perform

Select the ‘Headlamp Leveling Sensor Learn’ item.

NOTE: The functions differ depending on the make and model of the vehicle.

Step 4 – Perform the ‘Headlamp Leveling Sensor Learn’ function

	After that the Scan Tool shows some requirements that must be met first before performing the 'Headlamp Leveling Sensor Learn’ function. If not, the resetting process maybe failed. Tap the 'Next’ button to go to the next step.
	After that, the Scan Tool shows requirements that must be met first before performing the 'Headlamp Calibration’ function. If not, the relearning process may be failed. Tap the 'Next’ button to go to the next step.
	Wait for the Scan Tool to retrieve the data on the Electronic Control Module (ECU) and then show the control screen. Tap the ‘Start’ button to begin the relearning proceed.
	After that, the Scan Tool performs the relearning proceed for the Headlamp Leveling Sensor.
	The Scan Tool will provide a notification indicating that the calibration process was successful. Following this entire procedure ensures accurate calibration of the Headlamp Leveling sensor.

Reference Video