Document ID: chunk:federal_register_of_legislation:F2023L00129:reg:10:p52
Version: federal_register_of_legislation:F2023L00129
Segment Type: reg
Provision Reference: reg 10 (pt 52/150)
Character Range: 858759–861508

and output signals (see paragraph 4.7.2. and Appendix 5 to this annex);
(q) Freeze frame data required by this annex (see paragraph 4.7.1.4. and Appendix 5 to this annex);
(r) Software calibration identification(s);
(s) Calibration verification number(s).
 The OBD system shall clear all the recorded malfunctions of the engine system and related data (operating time information, freeze frame, etc.) in accordance with the provisions of this annex, when this request is provided via the external repair test equipment according to the applicable standard set in Appendix 6 to this annex.
4.7.1.4. Freeze frame information
 At least one "freeze frame" of information shall be stored at the time that either a potential DTC or a confirmed and active DTC is stored at the decision of the manufacturer. The manufacturer is allowed to update the freeze frame information whenever the pending DTC is detected again.
 The freeze frame shall provide the operating conditions of the vehicle at the time of malfunction detection and the DTC associated with the stored data. The freeze frame shall include the information as shown in Table 1 in Appendix 5 to this annex. The freeze frame shall also include all of the information in Tables 2 and 3 of Appendix 5 to this annex that are used for monitoring or control purposes in the specific control unit that stored the DTC.
 Storage of freeze frame information associated with a Class A malfunction shall take precedence over information associated with a Class B1 malfunction which shall take precedence over information associated with a Class B2 malfunction and likewise for information associated with a Class C malfunction. The first malfunction detected shall take precedence over the most recent malfunction unless the most recent malfunction is of a higher class.
 In case a device is monitored by the OBD system and is not be covered by Appendix 5 to this annex the freeze frame information shall include elements of information for the sensors and actuators of this device in a way similar to those described in Appendix 5 to this annex. This shall be submitted for approval by the Type Approval Authority at the time of approval.
4.7.1.5. Readiness
 With the exceptions specified in paragraphs 4.7.1.5.1., 4.7.1.5.2. and 4.7.1.5.3., a readiness shall only be set to "complete" when a monitor or a group of monitors addressed by this status have run and concluded the presence (that means stored a confirmed and active DTC) or the absence of the failure relevant to that monitor since the last erasing by an external request or command (for example through an OBD scan-tool). Readiness shall be set to "not complete" by erasing the fault code memory (see paragraph 4.7.4.) by an external request or