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readFailureRecordParameters
Allows a tester to read the failure record data parameters for a single failure record.
Failure record data parameters consist of important ECU inputs, outputs, and calculated
values which provide information about the operating conditions of the vehicle at the time
the DTC is logged. Examples of failure record data parameters might include engine
revolutions per minute (rpm), vehicle speed, etc. Valid failure record identifier data values
are obtained by the tester from the readFailureRecordIdentifiers ($01) level of this service.
M
$00
$03 thru
$FF
Definition_(Table_58).'>ReservedByDocument
This value is reserved by this document for future definition.
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8.3.2.2 Request Message Data Parameter Definition (Table 58).
Table 58: ReadFailureRecordData Request Message Data Parameter Definition

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Definition
failureRecordIdentifier
The failureRecordIdentifier bytes are only included in the request message if the sub-function parameter is
readFailureRecordParameters ($02). The failureRecordIdentifier consists of 4 bytes which includes the failure
record number and the DTC identifier (2 byte DTC number + 1-byte DTC fault type). This format allows for
maximum flexibility as it allows ECUs to store a single failure record per DTC, or to store multiple failure
records for each new occurrence of the same DTC.
8.3.3 Positive Response Message Definition. 
Below are the tables which describe the format and content of
positive responses corresponding to the sub-function level of the request message and the structure of the
data record (using PIDs or DPIDs).