Document ID: chunk:federal_register_of_legislation:F2023L00129:reg:10:p70
Version: federal_register_of_legislation:F2023L00129
Segment Type: reg
Provision Reference: reg 10 (pt 70/150)
Character Range: 907878–910836

etc.);
           (c) The wired communication interface.
       Correct MI illumination, information storage and on-board off-board OBD communication will be checked. But any check shall not force dismounting the engine system (e.g. an electric disconnection may be selected).
                   Annex 9B ‑ Appendix 2 Malfunctions - Illustration of the DTC status - Illustration of the MI and counters activation schemes
       This appendix aims at illustrating the requirements set in paragraphs 4.3. and 4.6.5. of this annex.
       It contains the following figures:
       Figure 1: DTC status in case of a Class B1 malfunction
       Figure 2 DTC status in case of 2 consecutive different Class B1 malfunctions
       Figure 3: DTC status in case of the re-occurrence of a Class B1 malfunction
       Figure 4A: Class A malfunction -activation of the MI and MI counters
       Figure 4B: Illustration of the continuous MI deactivation principle
       Figure 5: Class B1 malfunction - activation of the B1 counter in 5 use cases.
       Figure 1
       DTC status in case of a Class B1 malfunction
Notes:
            Means the point a monitoring of the concerned malfunction occurs
           N, M The annex requires the identification of "key" operating sequences during which some events occurs, and the counting of the subsequent operating sequences. For the purpose of illustrating this requirement, the "key" operating sequences have been given the values N and M.
            E.g. M means the first operating sequence following the detection of a potential malfunction, and N means the operating sequence during which the MI is switched OFF.
Figure 2
DTC status in case of 2 consecutive different Class B1 malfunctions

 Notes:
      Means the point a monitoring of the concerned malfunction occurs
     N, M,
     N', M' The annex requires the identification of "key" operating sequences during which some events occurs, and the counting of the subsequent operating sequences. For the purpose of illustrating this requirement, the "key" operating sequences have been given the values N and M for the first malfunction, respectively N' and M' for the second one.
      E.g. M means the first operating sequence following the detection of a potential malfunction, and N means the operating sequence during which the MI is switched OFF.
     N + 40 the fortieth operating sequence after the first extinction of the MI or 200 engine operating hours, whichever the earliest.
 Figure 3
 DTC status in case of the re-occurrence of a Class B1 malfunction
      Notes:
       Means the point a monitoring of the concerned malfunction occurs.
      N, M,
      N', M' The annex requires the identification of "key" operating sequences during which some events occurs, and the counting of the subsequent operating sequences. For the purpose of illustrating this requirement, the "key" operating sequences have been given the values N and M for the first