General Specification Electrical Function gmw3110 General Motors Local Area Network Enhanced Diagnostic Test Mode Specification

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8.14.3 Positive Response Message Definition (Table 148). 
Table 148: WriteDataByIdentifier Positive Response Message 
Data Byte Parameter Name 
Cvt 
Hex Value Mnemonic 
#1 
WriteDataByIdentifier Positive Response Service Id 
M 
7B 
SIDPR 
#2 
dataIdentifier 
M 
xx 
DID_ 
8.14.3.1 Positive Response Message Data Parameter Definition. 
Table 149 specifies the data parameter 
definitions for this service. 
Table 149: Response Message 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.
 
8.14.4 Supported Negative Response Codes (RC_). 
The following negative response codes shall be 
implemented for this service. See Table 150. 
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February 2010 
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Table 150: Supported Negative Response Codes 
Hex 
Description 
Cvt 
Mnemonic 
12 
SubFunctionNotSupported-InvalidFormat 
This response code shall be sent if the length of the data in the request 
message does not match the size expected by the node. 
M 
SFNS-IF 
22 
ConditionsNotCorrectOrRequestSequenceError 
This response code shall be sent if the operating conditions of the ECU are 
such that it cannot perform the required action (e.g., the data for a DID is 
stored in EEPROM and an EEPROM failure has occured). This response code 
is not intended to be used if the ECU conditions are such that the request 
temporarily cannot be performed (e.g., the data temporarily cannot be written to 
EEPROM because another application task is currently writing to EEPROM). 
Response code $78 is used when conditions are temporarily not met. If this 
response code is supported by a node, the reason(s) to generate this return 
code must be documented in the Component Technical Specification (CTS). 
C 
CNC-RSE 
31