Document ID: chunk:federal_register_of_legislation:F2023C00229:reg:110:p36
Version: federal_register_of_legislation:F2023C00229
Segment Type: reg
Provision Reference: reg 110 (pt 36/59)
Character Range: 704913–707964

of the fault code and the hours run by the engine during the MI activation for at least 400 days or 9 600 hours of engine operation.

              Any such fault code and the corresponding hours run by the engine during MI activation shall not be erased through use of any external diag- nostic or other tool as referred to in section 6.8.3 of this Annex.

                (1)      Symbol number F24.
                (2)
         4.        REQUIREMENTS RELATING TO THE TYPE-APPROVAL OF OBD SYSTEMS

             4.1. For the purpose of type-approval, the OBD system shall be tested according to the procedures given in Appendix 1 to this Annex.

              An engine representative of its engine family (see section 8 of Annex I to Directive 2005/55/EC) shall be used for the OBD demonstration tests or the test report of the parent OBD system of the OBD engine family will be provided to the type-approval authority as an alternative to carrying out the OBD demonstration test.

             4.1.1. In the case of OBD stage 1 referred to in section 3.2, the OBD system must:

             4.1.1.1. indicate the failure of an emission-related component or system when that failure results in an increase in emissions above the OBD thresholds given in the table in Article 4(3) of this Directive, or;

             4.1.1.2. where appropriate, indicate any major functional failure of an exhaust aftertreatment system.

             4.1.2. In the case of OBD stage 2 referred to in section 3.3, the OBD system must indicate the failure of an emission-related component or system when that failure results in an increase in emissions above the OBD thresholds given in the table in Article 4(3) of this Directive.

             4.1.3. In the case of both OBD 1 and OBD 2, the OBD system must indicate the lack of any required reagent necessary for the operation of an exhaust aftertreatment system.

             4.2. Installation requirements

             4.2.1. The installation on the vehicle of an engine equipped with an OBD system shall comply with the following provisions of this Annex with respect to the vehicle equipment:

                -          the provisions of sections 3.6.1, 3.6.2 and 3.6.5 concerning the MI and, where appropriate, additional warning modes;

                -          when applicable, the provisions of section 6.8.3.1 concerning the use of an on-board diagnostic facility;

                -          the provisions of section 6.8.6 concerning the connection interface.

             4.3. Type-approval of an OBD system containing deficiencies

             4.3.1. A manufacturer may request to the authority that an OBD system be accepted for type-approval even though the system contains one or more deficiencies such that the specific requirements of this Annex are not fully met.

             4.3.2. In considering the request, the authority shall determine whether compliance with the requirements of this Annex is feasible or unreasonable.

              The authority shall take into consideration data