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8.12.3 Positive Response Message Definition (Table 134).
Table 134: RequestDownload Response Messages
Data Byte Parameter Name
Cvt Hex Value Mnemonic
#1
RequestDownload Response Service Id
M
74
SIDPR
8.12.3.1 Positive Response Message Data Parameter Definition. 
There are no data parameters in a
response to a request for this service.
8.12.4 Supported Negative Response Codes (RC_). 
The following negative response codes shall be
implemented for this service. The circumstances under which each response code would occur are
documented in Table 135.
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February 2010
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Table 135: Supported Negative Response Codes
Hex Description
Cvt Mnemonic
12
SubFunctionNotSupported-InvalidFormat
•
Used if the number of data bytes in the request message is incorrect.
•
Used if the requested dataFormatIdentifier value is not supported by the
node.
•
Used if the unCompressedMemorySize is invalid for the dataFormatIdentifier
requested.
M
SFNS-IF
22
ConditionsNotCorrectOrRequestSequenceError
•
This return code shall be sent if the DisableNormalCommunication ($28)
service is not active when a request is received for this service.
•
This return code shall be sent if programming mode has not been activated
via the ProgrammingMode ($A5) service when a request is received for this
service.
•
This return code shall be sent if the ECU is secure (for ECUs that support
the SecurityAccess ($27) service) when a request for this service has been
received.
•
This return code shall be sent if an ECU receives a request for this service
while in the process of receiving a download of a software or calibration
module. This could occur if there is a data size mismatch between the ECU
and the tester during the download of a module.
M
CNCRSE
78