Been a while.
Found a new rabbit hole to run around in..
Multiple manufacturer comms....
Sniffing standard ISO CANBUS (11 bit header/addressing for Isuzu) for ECM addresses/connections.
Haven't tried looping through addresses as don't have a bench rig to leave overnight..
Wondering if anyone has a generic GATEWAY address or range to use as a starting point?
0x241 gets a reply from 0x261 as an example
Found some ECM addressing on the net.
But other than the standard 0x7xx diagnostic, appears to be manufacturer assigned...
UDS - OBD Addressing
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antus
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Re: UDS - OBD Addressing
Have you tried any J1939? Also look for K-Line (some isuzu have old hardware still talking K-Line).
Have you read the FAQ? For lots of information and links to significant threads see here: http://pcmhacking.net/forums/viewtopic.php?f=7&t=1396