Air Suspension System Calibration

A calibration routine is performed using the diagnostic system to access the position of each corner of the vehicle and record the settings in the Chassis Control Module (CHCM) memory.

Once set, the calibration is not required to be performed unless the:

• the Chassis Control Module (CHCM) is replaced
• height sensor or its bracket is removed, disconnected or replaced
• suspension arm to which the height sensor is connected is removed or replaced.