[JandJSpeedShop]

   

Can anyone help me get a better understanding of DTCs in Hitachi controllers. Just looking for some info. Is the main table the "DTC table" and the other table the switch for the DTC.

Take the P0420 for example:

0420 1400 0000 0602 0000 0000

What does the 1400 & 0602 mean. I see most people zero out everything here.

Then in the "DTC Switch" table there is:
0001 4284 

And most people just zero out both of these values. Would it be sufficient to just change the 0001 to 0000 in the switch table to turn off the DTC.

THANKS

[JandJSpeedShop]

Anyone have any insight? I am just trying to learn