Am I acting too fast? Or there's other things go wrong?

Now I'm stuck after I got responce from ECU.

Here's what my program does, can anybody pls help me?

...(init bus stuff)
ECU: 0xcc
me: wait for 500ms
me: 0x68 0x6a 0x33 0x01 0x00 checksum (ensure 15ms interbyte delay)

Then ECU keeps slient. Is there anything I did wrong here? Freediag
source does not seem to do anthing more than this.

 
Received on Fri Oct 18 12:53:32 2002