System Description

System Diagram:

SYSTEM DESCRIPTION

AIR SUSPENSION SYSTEM DESCRIPTION
a. The suspension control ECU operates the compressor & motor with the dryer and uses the solenoid valves to control the vehicle height by analyzing the information based on the switches, sensors and input signals.
b. Through the 4 height control sensors, the suspension control ECU detects the changes in the vehicle height that results from the number of occupants or the amount of the load. Then, the suspension control ECU controls the height control solenoid valves and the compressor & motor with the dryer in order to automatically adjust the vehicle height to a constant (normal) level.
c. Furthermore, two vehicle heights can be selected by operating the height control switch: HI and Normal.
d. In cases such as when the vehicle is jacked up, the auto leveling function is prohibited by turning the ignition switch off.

If the vehicle is raised with its engine running, connect terminals OPB and CG of the DLC3 so the vehicle height control is not carried out.

e. The absorber control switch selects the shock absorber damping force (normal or sport).
f. w/ Pre-collision safety system:
The suspension control ECU changes the stiffness of the suspension to the hardest setting by receiving signals (collision unavoidable) from the cruise control ECU.




Function of Components