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

GM WORLDWIDE ENGINEERING STANDARDS 
GMW3110 
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February 2010 
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8.20.3.1 Positive Response Message Data Parameter Definition (Table 211). 
Table 211: DeviceControl Response Message Data Parameter Definition 
Definition 
CPIDNumber 
This parameter is an echo of the CPID number from the request message. 
8.20.4 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 212. 
Table 212: Supported Negative Response Codes 
Hex 
Description 
Cvt 
Mnemonic 
12 
SubFunctionNotSupported-InvalidFormat

The length of the message is such that there is no CPID number in the 
request. 

The length of the message for a supported CPID does not match the length 
expected by the device. 

See 7.2 Return Code Definition. 
M 
SFNS-IF 
31 
RequestOutOfRange 

This code shall be returned if the CPID requested is not supported by the 
device. 

This code shall be returned if a tester sends a request with a valid secure 
CPID and the device
’s security feature is currently active. 
M 
ROOR 
78 
RequestCorrectlyReceived-ResponsePending 
See 7.2 Return Code Definition. 
C 
RCR-RP 
E3 
DeviceControlLimitsExceeded 
This code shall be returned any time a device exits device control due to its 
internal protection algorithms. With this code, 2 additional bytes will be included 
in the reject message to indicate which limit was exceeded. 
C 
DCLE 
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