Document ID: chunk:federal_register_of_legislation:F2023L00129:reg:10:p66
Version: federal_register_of_legislation:F2023L00129
Segment Type: reg
Provision Reference: reg 10 (pt 66/150)
Character Range: 897121–900034

into Class A.
7.1.2. Testing process for demonstrating the OBD performance
 When the Type Approval Authority requests to test the OBD system performance according to paragraph 6.3., the compliance demonstration shall consist of the following phases:
(a) A malfunction is selected by the Type Approval Authority and a corresponding deteriorated component or system shall be made available by the manufacturer;
(b) When appropriate and if requested, the manufacturer shall demonstrate by an emission test that the deteriorated component is qualified for a monitoring demonstration;
(c) The manufacturer shall demonstrate that the OBD system responds in a manner that complies with the provisions of this annex (i.e. MI indication, DTC storage, etc.) At the latest by the end of a series of OBD test-cycles.
7.1.2.1. Qualification of the deteriorated component
 When the Type Approval Authority requests the manufacturer to qualify a deteriorated component by testing according to paragraph 6.3.2., this demonstration shall be made by performing an emissions test.
 If it is determined that the installation of a deteriorated component or device on an engine system means that a comparison with the OBD threshold limits is not possible (e.g. because the statistical conditions for validating the applicable emission test cycle are not met), the malfunction of that component or device may be considered as qualified upon the agreement of the Type Approval Authority based on technical rationale provided by the manufacturer.
 In the case that the installation of a deteriorated component or device on an engine means that the full load curve (as determined with a correctly operating engine) cannot be attained during the test, the deteriorated component or device may be considered as qualified upon the agreement of the Type Approval Authority based on technical rationale provided by the manufacturer.
7.1.2.2. Malfunction detection
 Each monitor selected by the Type Approval Authority to be tested on an engine test-bed, shall respond to the introduction of a qualified deteriorated component in a manner that meets the requirements of this annex within two consecutive OBD test-cycles according to paragraph 7.2.2. of this annex.
 When it has been specified in the monitoring description and agreed by the Type Approval Authority that a specific monitor needs more than two operating sequences to complete its monitoring, the number of OBD test-cycles may be increased according to the manufacturer's request.
 Each individual OBD test-cycle in the demonstration test shall be separated by an engine shut-off. The time until the next start-up shall take into consideration any monitoring that may occur after engine shut-off and any necessary condition that must exist for monitoring to occur at the next start up.
 The test is considered complete as soon as the OBD system has responded in a manner that meets