Document ID: chunk:federal_register_of_legislation:F2023C00229:reg:110:p29
Version: federal_register_of_legislation:F2023C00229
Segment Type: reg
Provision Reference: reg 110 (pt 29/59)
Character Range: 685602–688687

the software calibration identification number applicable to an engine type, information enabling the update of the software of the electronic systems in accordance with the specifications of the vehicle manufacturer, instructions for individual and special cases, information provided concerning tools and equip- ment, data record information and two-directional monitoring and test data. The manufacturer shall not be obliged to make available that infor- mation which is covered by intellectual property rights or constitutes specific know-how of manufacturers and/or OEM suppliers; in this case the necessary technical information shall not be improperly withheld;

              'standardised' means that all emission related OBD data (i.e. stream information in the case a scanning tool is used), including all fault codes used, shall be produced only in accordance with industry standards which, by virtue of the fact that their format and the permitted options are clearly defined, provide for a maximum level of harmonisation in the motor vehicle industry, and whose use is expressly permitted in this Directive;

              'unrestricted' means:

                -          access not dependent on an access code obtainable only from the manufacturer, or a similar device,
                or
                -          access allowing evaluation of the data produced without the need for any unique decoding information, unless that information itself is standardised.
                -
         3.        REQUIREMENTS AND TESTS

             3.1. General requirements

             3.1.1. OBD systems must be designed, constructed and installed in a vehicle so as to enable it to identify types of malfunction over the entire life of the engine. In achieving this objective the approval authority must accept that engines which have been used in excess of the appropriate durability period defined in Article 3 of this Directive may show some deterioration in OBD system performance such that the OBD thresholds given in the table in Article 4(3) of this Directive may be exceeded before the OBD system signals a failure to the driver of the vehicle.

             3.1.2. A sequence of diagnostic checks must be initiated at each engine start and completed at least once provided that the correct test conditions are met. The test conditions must be selected in such a way that they all occur under the driving conditions as represented by the test defined in section 2 of Appendix 1 to this Annex.

             3.1.2.1. Manufacturers are not required to activate a component/system exclusively for the purpose of OBD functional monitoring under vehicle oper- ating conditions when it would not normally be active (e.g. activation of a reagent tank heater of a deNOx system or combined deNOx-particulate filter when such a system would not normally be active).

             3.1.3. OBD may involve devices, which measure, senses or responds to operating variables (e.g. vehicle speed, engine speed, gear used, temperature, intake pressure or any other parameter) for the