9 Appendix II
104
WABCO Maintenance Manual MM-0112 (Revised 07-18)
Figure 9.16
Tip: The vehicle does not have to come to a complete stop
before turning the steering wheel 360 degrees in the other
direction but it is recommended to make sure wheels are in
the straight position before making the turn.
Turn the steering wheel 360 degrees in the opposite direction and
repeat the driving conditions. The ATC lamp will start blinking when
the required conditions are met. Keep driving in those conditions
(approximately 8 seconds) until the lamp turns off.
The screen will automatically change to show ESC End of the Line
data and ratios. Figure 9.17.
Make sure to stop the vehicle once steering ratio calculation has
been completed.
NOTE: The circle driving (Calculation of Steering Ratio) can be done
in segments as the ECU will accumulate the information until the
desired distance is reached, but must be done within the same
ignition cycle. The calibration requires driving in both directions with
the steering wheel rotated 360 degrees.
Figure 9.17
With the vehicle stopped, ESC End of Line Data with the Steering
Ratios and Steering Angle Offset values will appear. The data can be
saved or printed for maintenance records. If saving or printing is not
desired, click “Close”. The next screen will automatically appear to
complete the ESC initialization. Figure 9.18.
Figure 9.16
Figure 9.17
4010685a
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