Document ID: chunk:federal_register_of_legislation:F2025C00111:body:0:p10
Version: federal_register_of_legislation:F2025C00111
Segment Type: other
Provision Reference: 
Character Range: 29259–32239

has begun. The vehicle manufacturer shall demonstrate through the use of documentation that the system works at all conditions of load.

              6.3.2. The vehicle shall be tested at the tyre pressures recommended by the vehicle manufacturer.

              6.3.3. In the case where the LDWS is equipped with a user-adjustable warning threshold, the test as specified in paragraph 6.5. below shall be performed with the warning threshold set at its maximum lane departure setting. No alteration shall be made once the test procedure has begun.

              6.4. Optical warning signal verification test

               With the vehicle stationary check that the optical warning signal(s) comply with the requirements of paragraph 5.4.3. above.

              6.5. Lane departure warning test

              6.5.1 Drive the vehicle at a speed of 65 km/h +/- 3 km/h into the centre of the test lane in a smooth manner so that the attitude of the vehicle is stable.

               Maintaining the prescribed speed, gently drift the vehicle, either to the left or the right, at a rate of departure of between 0.1 and 0.8 m/s so that the vehicle crosses the lane marking. Repeat the test at a different rate of departure within the range 0.1 and 0.8 m/s.

               Repeat the above tests drifting in the opposite direction.

              6.5.2. The LDWS shall provide the lane departure warning indication mentioned in paragraph 5.4.1. above at the latest when the outside of the tyre of the vehicle's front wheel closest to the lane markings crosses a line 0.3 m beyond the outside edge of the visible lane marking to which the vehicle is being drifted.

              6.6. Failure detection test

              6.6.1. Simulate a LDWS failure, for example by disconnecting the power source to any LDWS component or disconnecting any electrical connection between LDWS components. The electrical connections for the failure warning signal of paragraph 5.4.2. above and the LDWS disable control of paragraph 5.3. above shall not be disconnected when simulating a LDWS failure.

              6.6.2. The failure warning signal mentioned in paragraph 5.4.2.above  shall be activated and remain activated while the vehicle is being driven and be reactivated after a subsequent ignition "off" ignition "on" cycle as long as the simulated failure exists.

              6.7. Deactivation Test

              6.7.1 If the vehicle is equipped with means to deactivate the LDWS, turn the ignition (start) switch to the "on" (run) position and deactivate the LDWS. The warning signal mentioned in paragraph 5.3.2. above shall be activated. Turn the ignition (start) switch to the "off" position. Again, turn the ignition (start) switch to the "on" (run) position and verify that the previously activated warning signal is not reactivated, thereby indicating that the LDWS has been reinstated as specified in paragraph 5.3.1. above. If the ignition system is activated by means of