Control functions when opening doors
If one or more doors are opened while the vehicle is stationary, the air suspension control unit limits further height changes. The door open signal is transmitted from the CJB to the air suspension control unit via the high speed CAN bus. This allows the vehicle to be kept level at a predetermined height so that load conditions can be changed.
In addition, the door status signal is transmitted from the CJB to the air suspension control unit via a permanent wire connection. This signal provides information about the state of the doors when the high speed CAN bus is off, such as during periodical alignment.
The appropriate mode lamp on the air suspension switch will be on and the height increase or decrease lamp will flash.
If all doors have been closed within 90 seconds, the altitude change will resume. If 90 seconds have passed and all doors have not been closed, the altitude change will be terminated. The mode lamps corresponding to the selected altitude and the set altitude will light up. Height change can be re-initiated using the switch, however, if the vehicle is moving faster than 8 km/h, the control unit will continue to raise or lower the vehicle to the set height.
Advanced mode
If the vehicle sits on the bottom and the traction control system is activated, the air suspension control unit automatically increases the amount of air supplied to the elastic pneumatic elements in order to raise the vehicle above the obstacle. Advanced mode is activated automatically and cannot be selected manually.
When the air suspension control module activates the advanced mode, the off-road driving mode lamp flashes if the body height exceeds the off-road driving height. The off-road and on-road mode lamps flash when the suspension is in a position between the off-road mode height and the road mode height. The road and seat mode lamps flash when the suspension is between the road mode height and the seat mode height. In addition, a message is displayed on the message center display.
To exit advanced mode, briefly press the air suspension switch up or down, or drive at a speed of more than 3 km/h for 45 seconds.
Extra lift in extended mode
This feature has been added on newer models to further increase ground clearance in extended mode. When advanced mode is enabled and automatic vehicle height increase is completed, the driver can further raise the vehicle. This can be especially useful if advanced mode is enabled while driving on soft ground.
Additional lift is possible after the height increase lamp goes out. Press and hold the switch in the up position for 3 seconds while depressing the brake pedal. An audible signal from the instrument panel will confirm receipt of the request. The lift symbol lights up while the vehicle is being raised.
Work in the presence of obstacles that do not allow you to change the height of the suspension
If the air suspension control unit detects that an obstacle prevents the suspension height from being changed, it stops all suspension movement. This may be caused by jacking up the vehicle, attempting to lower the vehicle onto an object, or restricting the vehicle from being lifted by an obstacle.
The air suspension switch lamps operate as in advanced mode and the message center display shows the same message. To reactivate the air suspension system, briefly move the air suspension switch up or down, or drive faster than 3 km/h for 45 seconds.
High speed driving mode
On new models, a high-speed driving mode has been added. High speed driving mode is only activated automatically. In this mode, the vehicle is lowered by 20mm to improve handling. This function works fully automatically and "imperceptibly" for the driver.
If the vehicle speed exceeds 160 km/h for more than 5 seconds, the air suspension control unit activates the high speed driving mode. The suspension returns to road mode height when the vehicle speed is less than 130 km/h for more than 30 seconds. This function does not work if a trailer is attached to the hitch.
Periodic leveling
When the vehicle is parked, the air suspension control unit is activated two hours after the ignition is turned off and then every six hours thereafter. The vehicle height is checked and if it is not within the specified range, small downward height adjustments can be made automatically.
Vehicle transportation mode
The vehicle transportation mode is set by the manufacturer. In this mode, the suspension is locked for safe transport. Transport mode can be turned on and off using Land Rover approved diagnostic equipment.
When the ignition is switched off, the vehicle will lower onto the compression stroke buffers. This prevents loosening of the fastening bands in the event of air leakage from the elastic pneumatic elements.
When the engine is turned on, the compressor unit starts to work and raises the car so that it can be unloaded. The next time the ignition is switched off, the vehicle will lower back onto the compression stroke buffers. When the upper position of the transport mode is reached, the instrument panel beeps.
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