Document ID: chunk:federal_register_of_legislation:F2023L00129:reg:10:p122
Version: federal_register_of_legislation:F2023L00129
Segment Type: reg
Provision Reference: reg 10 (pt 122/150)
Character Range: 1063009–1066139

driver repairs the dosing system. However, some time afterwards, the dosing system fails again. The warning, inducement, and counting processes restart from zero;
                  (c) Repair case 2 ("bad" repair): during the low-level inducement time (torque reduction), the driver repairs the dosing system. Soon after, however, the dosing system fails again. The low-level inducement system is immediately reactivated and the counter restarts from the value it had at the time of repair.
           Figure 4
           Failure of the reagent dosing system

                   Annex 11 ‑ Appendix 3 Low level inducement torque reduction scheme
This diagram illustrates the provisions of paragraph 5.3. of this annex on torque reduction.

                   Annex 11 ‑ Appendix 4 Demonstration of correct installation on a vehicle in the case of engines type-approved as a separate technical unit
       This appendix applies when the vehicle manufacturer requests type approval of a vehicle with an approved engine with regard to emissions in accordance with this Regulation.
       In this case, and in addition to the installation requirements of paragraph 6. of this Regulation, a demonstration of the correct installation is required. This demonstration shall be performed by the presentation to the Type Approval Authority of a technical case using evidence such as engineering drawings, functional analyses, and the results of previous tests.
       Where appropriate, and if the manufacturer chooses, the evidence presented may include installations of systems or components on real or simulated vehicles, provided that the manufacturer can present evidence that the presented installation properly represents the standard that will be achieved in production.
       The demonstration shall address the conformity of the following elements to the requirements of this annex:
           (a) The installation on board the vehicle as regards its compatibility with the engine-system (hardware, software and communication);
           (b) The warning and inducement systems (for example, pictograms, activation schemes, etc.);
           (c) The reagent tank and the elements (for example, sensors) mounted on the vehicle for the purpose of complying with this annex.
       Correct activation of the warning and inducement systems, and of the information storage and on-board and off-board communication systems, may be checked. No check of these systems shall require the dismounting of the engine system or components, nor shall it generate unnecessary testing burden by requiring processes such as changing of the urea quality or running of the vehicle or engine for long periods of time. In order to minimise the burden upon the vehicle manufacturer, electric disconnections and simulation of counters with high operating hours shall be selected as checks on these systems if possible.

Annex 11 ‑ Appendix 5 Access to "NOx control information"
A.5.1. This appendix describes the specifications permitting access to information required in order to check the status of the vehicle with regard to the correct