Document ID: chunk:federal_register_of_legislation:F2023C00229:reg:110:p45
Version: federal_register_of_legislation:F2023C00229
Segment Type: reg
Provision Reference: reg 110 (pt 45/59)
Character Range: 729881–733238

by a bogus system

                -          lack of any required reagent for a deNOx system

                -          any electrical failure of a component (e.g. sensors and actuators, dosing control unit) of a deNOx system, including, when applicable, the reagent heating system

                -          failure of a reagent dosing system (e.g. missing air supply, clogged nozzle, dosing pump failure) of a deNOx system

                -          major breakdown of the system.

             6.3.1.4. Where fitted, total removal of the particulate filter or replacement of the particulate filter with a defective particu- late filter that results in emissions exceeding the OBD particulate threshold limit given in the table in Article 4(3) of this Directive.

              In the case that the engine is being type-approved according to Article 4(1) of this Directive in relation to moni- toring for major functional failure, the test of the particulate filter shall determine that the MI illuminates under any of the following conditions:

                -          complete removal of the particulate filter or replacement of the system by a bogus system

                -          major melting of the particulate filter substrate

                -          major cracking of the particulate filter substrate

                -          any electrical failure of a component (e.g. sensors and actuators, dosing control unit) of a particulate filter

                -          failure, when applicable, of the reagent dosing system (e.g. clogged nozzle, dosing pump failure) of a particu- late filter

                -          a clogged particulate filter resulting in a differential pressure out of the range declared by the manufacturer.

             6.3.1.5. Where fitted, replacement of a combined deNOx-particulate filter system (including any sensors that are an inte- gral part of the device) with a deteriorated or defective system or electronic simulation of a deteriorated or defec- tive system that results in emissions exceeding the OBD NOx and particulate threshold limits given in the table in Article 4(3) of this Directive.

              In the case that the engine is being type-approved according to Article 4(1) of this Directive in relation to moni- toring for major functional failure, the test of the combined deNOx-particulate filter system shall determine that the MI illuminates under any of the following conditions:

                -          complete removal of the system or replacement of the system by a bogus system

                -          lack of any required reagent for a combined deNOx-particulate filter system

                -          any electrical failure of a component (e.g. sensors and actuators, dosing control unit) of a combined deNOx-particulate filter system, including, when applicable, the reagent heating system

                -          failure of a reagent dosing system (e.g. missing air supply, clogged nozzle, dosing pump failure) of a com- bined deNOx-particulate filter system

                -          major breakdown of a NOx trap system

                -          major melting of the particulate filter substrate

                -          major cracking of the particulate filter substrate

                -          a clogged particulate filter resulting in