Headlamp: Testing and Inspection

HID Vehicle Level Sensors, Checking

Special tools, testers and auxiliary items required

• Vehicle Diagnostic Tester

The level control system sensors transmit the vehicle level in the form of a signal to the Headlamp Range Control Module (J745).

In the following, it will be checked whether Left Rear Level Control System Sensor (G76) and Left Front Level Control System Sensor (G78) send signals which can be evaluated to the Headlamp Range Control Module (J745).

In the following cases, no DTC entry is stored in Headlamp Range Control Module (J745) :

• when vehicle level sensors are not installed as specified in the repair information

• when vehicle level sensors are damaged mechanically

• In vehicles with a modified axle geometry (such as lowered vehicles)

• If the values of the level control system sensors are outside the tolerance range, a basic setting of the headlamps cannot be performed.

- Connect the Vehicle Diagnostic Tester. Refer to => [ Vehicle Diagnosis, Testing and Information Systems ] Vehicle Diagnosis, Testing and Information Systems.

- On the Vehicle Diagnostic Tester, select "Guided Fault Finding".

- Using the "Go To" button, select "Functions/Component selection" and the following menu options in sequence:

• Body

• Electrical Equipment

• 01 - On Board Diagnostic (OBD) capable systems

• Automatic headlamp range control cornering light

• Automatic headlamp range control electrical components

• Level Control System Sensor, Checking