Document ID: chunk:federal_register_of_legislation:F2023C00229:reg:5:p22
Version: federal_register_of_legislation:F2023C00229
Segment Type: reg
Provision Reference: reg 5 (pt 22/36)
Character Range: 481474–484724

presence of a fault to a driver of the vehicle.

         The manufacturer shall provide a description of the indicator and warning mode used to signal the lack of required reagent to a driver of the vehicle.'

     (j)      The following section 3.4 is added:

     '3.4. On-board diagnostic systems

          3.4.1.             The application for approval of an engine equipped with an on-board diagnostic (OBD) system must be accompanied by the information required in section 9 of Appendix 1 to Annex II (description of the parent engine) and/or section 6 of Appendix 3 to Annex II (description of an engine type within the family) together with:

          3.4.1.1.         Detailed written information fully describing the functional operation characteristics of the OBD system, including a listing of all rel- evant parts of the engine's emission control system, i.e. sensors, actuators and components, that are monitored by the OBD system;

          3.4.1.2.         Where applicable, a declaration by the manufacturer of the parameters that are used as a basis for major functional failure monitoring and, in addition:

          3.4.1.2.1.    The manufacturer shall provide the technical service with a description of potential failures within the emission control system that will have an effect on emissions. This information shall be subject to discussion and agreement between the technical service and the vehicle manufacturer.

          3.4.1.3.         Where applicable, a description of the communication interface (hardware and messages) between the engine electronic control unit (EECU) and any other powertrain or vehicle control unit when the exchanged information has an influence on the correct function- ing of the emission control system.

          3.4.1.4.         Where appropriate, copies of other type-approvals with the relevant data to enable extensions of approvals.

          3.4.1.5.         If applicable, the particulars of the engine family as referred to in section 8 of this Annex.

          3.4.1.6.         The manufacturer must describe provisions taken to prevent tampering with and modification of the EECU or any interface param- eter considered in section 3.4.1.3.'

     (k)     In section 5.1.3 the footnote is deleted.

     (l)      Section 6.1 is replaced by the following:

     '6.1. General

         6.1.1.            Emission control equipment

         6.1.1.1.        The components liable to affect, where appropriate, the emission of gaseous and particulate pollutants from diesel and gas engines shall be so designed, constructed, assembled and installed as to enable the engine, in normal use, to comply with the provisions of this Directive.

         6.1.2.            The use of a defeat strategy is forbidden.

         6.1.2.1.        The use of a multi-setting engine is forbidden until appropriate and robust provisions for multi-setting engines are laid down in this Directive (*).

         6.1.3.            Emission control strategy

         6.1.3.1.        Any element of design and emission control strategy (ECS) liable to affect the emission of gaseous and particulate pollutants from diesel engines and the emission of gaseous pollutants from gas engines shall be