Document ID: chunk:federal_register_of_legislation:F2021C00476:body:0:p24
Version: federal_register_of_legislation:F2021C00476
Segment Type: other
Provision Reference: 
Character Range: 65361–68538

the warning signal(s) shall remain displayed as long as the failure/defect persists and the ignition (start) switch is in the "on" (run) position; and

         5.2.21.3.3. the warning signal shall be constant (not flashing).

         5.2.21.4. The warning signal(s) mentioned above shall light up when the electrical equipment of the vehicle (and the braking system) is energised.  With the vehicle stationary, the braking system shall verify that none of the specified failures or defects are present before extinguishing the signals.  Specified failures or defects which should activate the warning signals mentioned above, but which are not detected under static conditions, shall be stored upon detection and be displayed at start-up and at all times when the ignition (start) switch is in the "on" (run) position, as long as the failure or defect persists.

         5.2.21.5. Non specified failures (or defects), or other information concerning the brakes and/or running gear of the power-driven vehicle, may be indicated by the yellow signal specified in paragraph 5.2.21.1.2. above, provided that all the following conditions are fulfilled:

         5.2.21.5.1. the vehicle is stationary;

         5.2.21.5.2. after the braking equipment is first energised and the signal has indicated that, following the procedures detailed in paragraph 5.2.21.4. above, no specified failures (or defects) have been identified; and

         5.2.21.5.3. non-specified faults or other information shall be indicated only by the flashing of the warning signal.  However, the warning signal shall be extinguished by the time when the vehicle first exceeds 10 km/h.

         5.2.22. Generation of a braking signal to illuminate stop lamps.

         5.2.22.1. Activation of the service braking system by the driver shall generate a signal that will be used to illuminate the stop lamps.

         5.2.22.2.                     Activation of the service braking system by "automatically commanded braking" shall generate the signal mentioned above. However, when the retardation generated is less than 0.7 m/s2, the signal may be suppressed [6]/.

         5.2.22.3.                     Activation of part of the service braking system by "selective braking" shall not generate the signal mentioned above [7]/.

         5.2.22.4.                     Electric regenerative braking systems, which produce a retarding force upon release of the throttle pedal, shall not generate a signal mentioned above.

         5.2.23. When a vehicle is equipped with the means to indicate emergency braking, activation and de-activation of the emergency braking signal shall meet the specifications below:

         5.2.23.1. The signal shall be activated by the application of the service braking system at a deceleration of or above 6 m/s2;

          The signal shall be de-activated at the latest when the deceleration has fallen below 2.5 m/s2.

         5.2.23.2. The following conditions may also be used:
               (a) The signal may be activated by the application of the service braking system in such a manner that it would produce, in an unladen condition and engine disconnected,