Quote:
Originally Posted by Acree
Is there any way to discover CANbus definitions/addresses/data using the OpenPort or ECUFlash?
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As Td-d said, disassembly is best, but makes your head hurt.
I also tried USB sniffing (with any sniffer or logic analyzer you care to use) with Techstream which uses Toyota OBD mode 21, currently unsupported by OpenPort standalone:
http://www.romraider.com/forum/viewt...8475&start=285
ECU requests are made with 00 00 07 E0 and ECU responses are 00 00 07 E8.
Within Mode 21, I think Defogger sits at CAN ID 22, Byte 12.
Techstream also lets you interface with VSC module (00 00 07 B0) which gives you back stuff like wheel speeds, steering angle, G force data and yaw rate.