Learning of active rear axle steering
This function is used to calibrate the rear axle steering.
The calibration must be done in the following cases:
The control unit has been replaced.
Front or rear axle adjustment has been performed.
Front or rear steering angle sensor for the electronically controlled rear axle has been replaced.
The centering cylinder has been replaced.
Test conditions:
Extra axles (if fitted) must be lowered.
Vehicle must be without load.
Engine running.
Vehicle stationary.
The front wheels pointing straight ahead (+/-0.5°). Measuring equipment must be used.
Procedure:
Position the wheels straight ahead, by using the measuring equipment.
Start the engine.
Start the function.
A dialogue box shows test conditions, check these and press "OK".
The calibration is initiated.
In the next step, check the angle of the rear axle.
If the value is out of range (+/-1°) control the angle of the rear axle by using the buttons.
If the value is within the allowed range (+/-1°), proceed and calibrate the zero position.
Set the zero position on the steerable rear axle.
The values are permanently saved in the next dialogue box.
The function is done.
If the function fails, check the test conditions and repair any faults.