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[F1ANNEX X U.K. Test requirements for vehicles with anti-lock braking systems

4. GENERAL REQUIREMENTS U.K.

4.7. A manual device may not be provided to disconnect or change the control mode (1) of the anti-lock braking system, except on off-road motor vehicles of categories N 2 or N 3 . Where a device is fitted to N 2 or N 3 off-road motor vehicles, the following conditions shall be met: U.K.

4.7.1. the motor vehicle with the anti-lock braking system disconnected or the control mode changed by the device referred to in point 4.7 above shall satisfy all the relevant requirements in the Appendix to point 1.1.4.2 of Annex II; U.K.
4.7.2. an optical warning signal shall inform the driver that the anti-lock braking system has been disconnected or the control mode changed; the anti-lock failure warning signal may be used for this purpose; U.K.
4.7.3. the anti-lock braking system shall automatically be reconnected/returned to on-road mode when the ignition (start) device is again set to the on (run) position; U.K.
4.7.4. the vehicle user's handbook provided by the manufacturer should warn the driver of the consequences of manual disconnection or mode change of the anti-lock braking system; U.K.
4.7.5. the device referred to in point 4.7 above may, in conjunction with the towing vehicle, disconnect/change the control mode of the anti-lock braking system of the trailer; a separate device for the trailer alone is not permitted.] U.K.
(1)

[F1It is understood that devices changing the control mode of the anti-lock braking system are not subject to point 4.7 if in the changed control mode condition all requirements for the category of anti-lock braking system, with which the vehicle is equipped, are fulfilled. However, in this case points 4.7.2, 4.7.3 and 4.7.4 shall be met.]