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GAP Diagnostic 2023-09-12 All Rights Reserved
User Manual G3 units: Version 37, Firmware V4.0
4.6.8 RLM Air Suspension, CHCM Chassis on 2017+
(L319, L320, L322, L405, L494,
L460, L461, L462, L560, L663)
Height Sensor Calibration, definition
For baseline calibration, the standard function allows changes to each corner individually, Front Left,
Front Right, Rear Left and Rear Right.
This is only required when height sensors, linkages or any parts related to height measuring
are replaced or reinstalled. It may also be needed after a wheel alignment. For height changes,
raising or lowering the vehicle, please refer to the Height function
).
WARNING
Calibration of individual sensors should only be attempted by
experienced users. Read this section very carefully and only
undertake a calibration when the procedure is fully understood.
Serious damages can occur if the procedure is performed im-
properly! GAP Diagnostics assumes no liability for damages
or injuries incurred during use or resulting from the use of the
Notes :
•
Different calibration values for each corner are normal
– they do NOT need to be set to the
same value! These values represent arbitrary electrical constants relative to the height sensors
mechanical positioning. Correlating these values to the measured height of each corner is part
of the calibration procedure.
• Changes in calibration are instantaneous in the EAS ECU but the ECU may not apply these
changes immediately. The EAS ECU will adjust a corner when it’s +/- 10 mm or higher than the
desired height. For example, if the corner is at +9 mm, it will not adjust the corner height.
• The settings and changes are given in millimeters but this does not correspond exactly to
changes at the wheel. Each change in height must be measured from the bottom of the wheel
arch to the center of the wheel.
• A metric measuring tape is recommended for proper calibration.
The preferred method to be used is the Guided Calibration.
