GM queries

[Joe Boucher]

I have access to a CD ROM reader at work with SAE articles.  One paper I
found is SAE J2201, Universal Interface for OBD II Scan.  It states in
paragraph 2.2.2:

2.2.2.  DLCS - (Data Link Controller Serial) refers to the intergrated
circuit family developed by General Motors that supports SAE J1850 10.4
Kbps VPW CRC communications.

VPW - Variable Pulse Width modulation     CRC - Cyclid Redundancy Check

Please don't ask me to email a copy of this as the CD's are similar to
microfiche.  The documents are scanned in as pictures and are only
outputted to the screen or printer.  I would have to scan the 45 pages and
that would be a huge file.  Sorry.

Joe Boucher
'70 RS/SS Camaro  '81 TBI Suburban

martin at mgass.demon.co.uk wrote:

> Anybody know the baud rate for the Vehicle Keywords part of the
> dialog between a ScanTool and a European GM ECU (via J1962).
>
> I've seen references in the archive to 8192 baud and 10.4K baud ?
>
> Also anyone know the ECU microprocessor type for a) GM Bosch Motronic
> M2.8.3 [Open Vectra V6] b) GM SimTec Siemens 56.4 [Open Omega 2.016V] ?
>
> Thanks,
>
> Martin
> ----------------------------------------------------------
> martin at mgass.demon.co.uk
> ----------------------------------------------------------