Document ID: chunk:federal_register_of_legislation:F2018L01515:body:0:p18
Version: federal_register_of_legislation:F2018L01515
Segment Type: other
Provision Reference: 
Character Range: 48760–51725

to cause an increase in steering effort. This warning may be combined with a device provided to warn of brake failure if the brake system uses the same energy source. The satisfactory condition of the warning device shall be easily verifiable by the driver.
5.4.2. Special provisions for full-power steering equipment
5.4.2.1. Power-driven vehicles shall be capable of providing steering failure and defect warning signals, as follows:
5.4.2.1.1. A red warning signal, indicating failures defined in paragraph 5.3.1.3. within the main steering equipment;
5.4.2.1.2. Where applicable, a yellow warning signal indicating an electrically detected defect within the steering equipment, which is not indicated by the red warning signal;
5.4.2.1.3. If a symbol is used, it shall comply with symbol J 04, ISO/IEC registration number 7000-2441 as defined in ISO 2575:2000;
5.4.2.1.4. The warning signal(s) mentioned above shall light up when the electrical equipment of the vehicle (and the steering system) is energised. With the vehicle stationary, the steering system shall verify that none of the specified failures or defects is present before extinguishing the signal.
 Specified failures or defects which should activate the warning signal 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 persists.
5.4.3. In the case where additional steering equipment is in operation and/or where the steering angle generated by that equipment has not been returned to normal driving position a warning signal shall be given to the driver.
5.5. Provisions for the periodic technical inspection of steering equipment
5.5.1. As far as practicable and subject to agreement between the vehicle manufacturer and the Type Approval Authority, the steering equipment and its installation shall be so designed that, without disassembly, its operation can be checked with, if necessary, commonly used measuring instruments, methods or test equipment.
5.5.2. It shall be possible to verify in a simple way the correct operational status of those Electronic Systems, which have control over steering. If special information is needed, this shall be made freely available.
5.5.2.1. At the time of type approval the means implemented to protect against simple unauthorized modification to the operation of the verification means chosen by the manufacturer (e.g. warning signal) shall be confidentially outlined.
 Alternatively this protection requirement is fulfilled when a secondary means of checking the correct operational status is available.
5.6. Provisions for ACSF
Any ACSF shall be subject to the requirements of Annex 6.
5.6.1. Special provisions for ACSF of Category A
Any ACSF of Category A shall fulfil the following requirements.
5.6.1.1. General
5.6.1.1.1. The system shall only operate until 10