To me it looks like it was cancelled in october 2008. So it would of still been valid and in use when all (or at least most?) J1850 VPW modules ever used by GM left the factory.
2008 was also the year CAN became the required / only mandated protocol in the US. Could that be the reason for cancelling this document?
J1850 VPW functional messages
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Re: J1850 VPW functional messages
I think so. The related info tab says:
ISO 14229-1:2006 seems to be floating around out there and have the descriptive content about PID types.
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Rationale: J2190 is being canceled as it is very old document and has very little current use. This has not been superseded by any later SAE documents, but has been superseded by some ISO documents, which at a very high level include information that was in SAE J2190, but go into considerably more detail. ISO 14230-3: 1999 is intended for ISO 14230 (ISO 9141 based) serial data links, ISO 15765-3:2004 is intended for ISO 15765 (CAN) data links, and ISO 14229-1:2006 is "Unified Diagnostic Services" intended for all current and future serial data links.
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