Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

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Control Module Calibration AHL/AFL



Calibration Of Headlamp/AHL Control Module

Check the following points before carrying out calibration.
- The car must be level.
- The car must be unladen.
- Stabilise the suspension by rocking the car.
- The handbrake must not be applied.
- The steering wheel and wheels must be in the straight-ahead position.
- Ignition switch in ON position.
- The xenon lamps must be turned on.
- Battery voltage must be >10.5 V.

Connect the diagnostic tool and calibrate the headlamp/AHL control module.

Check the function of the headlamps and clear any trouble codes.

Check the headlamp alignment and adjust if necessary. Refer to Headlamp alignment.