Document ID: chunk:federal_register_of_legislation:F2023C00229:reg:110:p35
Version: federal_register_of_legislation:F2023C00229
Segment Type: reg
Provision Reference: reg 110 (pt 35/59)
Character Range: 702335–705133

systems and those emission control systems that need fur- ther engine operation to be fully evaluated. If the MI is activated due to malfunction or permanent emission default modes of operation, a fault code must be stored that identifies the likely area of malfunction. A fault code must also be stored in the cases referred to in sections 3.4.1.1 and 3.4.1.3 of this Annex.

             3.7.1. If monitoring has been disabled for 10 driving cycles due to the continued operation of the vehicle under conditions conforming to those speci- fied in section 3.5.1.2 of this Annex, readiness for the subject monitoring system may be set to 'ready' status without monitoring having been completed.

             3.7.2. The hours run by the engine while the MI is activated must be available upon request at any instant through the serial port on the standard link connector, according to the specifications given in section 6.8 of this Annex.

             3.8. Extinguishing the MI

             3.8.1. The MI may be de-activated after three subsequent sequential operating sequences or 24 engine running hours during which the monitoring sys- tem responsible for activating the MI ceases to detect the malfunction and if no other malfunction has been identified that would independently activate the MI.

             3.8.2. In the case of MI activation due to lack of reagent for the deNOx system, or combined deNOx-particulate after-treatment device or use of a reagent outside the specifications declared by the manufacturer, the MI may be switched back to the previous state of activation after filling or replace- ment of the storage medium with a reagent having the correct specifications.

             3.8.3. In the case of MI activation due to incorrect reagent consumption and dosing activity, the MI may be switched back to the previous state of acti- vation if the conditions given in section 6.5.4 of Annex I to Directive 2005/55/EC no longer apply.

             3.9. Erasing a fault code

             3.9.1. The OBD system may erase a fault code and the hours run by the engine and freeze-frame information if the same fault is not re-registered in at least 40 engine warm-up cycles or 100 engine running hours, whichever occurs first, with the exception of the cases referred to in section 3.9.2.

             3.9.2. From 1 October 2006 for new type approvals and from 1 October 2007 for all registrations, in the case of a fault code being generated according to sections 6.5.3 or 6.5.4 of Annex I to Directive 2005/55/EC, the OBD system shall retain a record 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