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

 
M 
SFNS-IF 
22 
ConditionsNotCorrectorRequestSequenceError 
1. This return code shall occur if the initiate programming request
(sub-parameter = $01 or $02) is not requested prior to the 
“enableProgrammingMode” (sub-parameter = $03) request. 
2. This return code shall occur if the $28 service is not active. 
3. This return code shall occur if operating conditions are such that the 
node must not allow a programming event to begin. Reasons for not 
allowing a programming event to begin must be documented in a CTS, 
SSTS, or a supplemental diagnostic specification referenced by the 
CTS or SSTS. 
4. This return code shall occur if programming mode is already active 
when a request for this service is received.
 
M 
CNCRSE 
78 
RequestCorrectlyReceived-ResponsePending 
See 7.2 Return Code Definition. 
This response code is only valid if the sub-parameter in the request message is 
$01 or $02. It shall NOT be used for the 
“enableProgrammingMode”.
 
C 
RCR-RP 
8.17.5 Message Flow Example - ProgrammingMode. 
8.17.5.1 RequestProgrammingMode (normal speed) and enableProgrammingMode Example. 
In the 
following example (Table 169), it is assumed: 

The tester has already disabled normal communication with mode $28 (with no negative responses 
received). 

The tester is sending the programming mode commands on the link where the target node resides. 

The programming session is to be performed in the normal speed of the link. 

There is more than one node on the link. 

TesterPresent messages are being sent (but not shown in the example). 
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