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Table 69: Data Parameter Definition
Definition
Msg Type
dataIdentifier
The DID is used within this service to indicate to the ECU application, which static data the tool
is requesting. If an ECU supports application specific DIDs (non corporate standard), then the
Request

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DID number, the data contents, and other information contained within the tables in
Appendix C, must be documented within the ECU CTS or within a supplemental diagnostic
specification referenced by the CTS.
8.4.3 Positive Response Message Definition (Table 70).
Table 70: ReadDataByIdentifier Positive Response Message
Data Byte Parameter Name
Cvt Hex Value Mnemonic
#1
ReadDataByIdentifier Positive Response Service Id
M
5A
SIDPR
#2
dataIdentifier
M
xx
DID_
#3
:
#n
dataRecord = [
Data Byte #1
:
Data Byte #m ]
M
:
U
xx
:
xx
DREC_
DB_1
:
DB_m
--``,,``````,``,,``,,,`,`,`,,-`-`,,`,,`,`,,`---
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8.4.3.1 Positive Response Message Data Parameter Definition (Table 71).
Table 71: Request Data Parameter Definition
Definition
dataIdentifier
The dataIdentifier parameter in the response message is an echo of the one in the request message to
confirm to the tool that the positive response is for the DID requested.
If an ECU supports application specific DIDs (non corporate standard), then the DID number, the data
contents, and other information contained within the tables in Appendix C, must be documented within the
ECU CTS or within a supplemental diagnostic specification referenced by the CTS.
dataRecord[]
This is the portion of the response message which contains the data stored in the ECU memory location(s)
of the requested DID. The length of this field is dependant upon the dataIdentifier requested.