I was trying to connect the diacom software to my 01 496 hos all it does is syncronize and says it cant connect. everything is selected correctly and the keys are on. any ideas?

Did you select either USB or Serial, depending on which connecting cable you have?

Also, You have to delect PCM555 for the 496.

yes both usb cable and pcm555 were selected. I did figure you that if i turn the key on and immidiatley click the link button it will like up for about 4 seconds then disconnect, so im assuming that my pcm doesnt have power unless its running? Does this sound correct?

You do have to turn the key to make the connection. I don't recall mine disconnecting. I usually turn the key on, then download the history and clear any codes.

How about if you start the motor and start recording? Does it stall connected?

I have connected this program to other boats and havent had the problem. When i connect it to mine if i turn the key on and click the link button it has enough time to download the intial parameters then disconnects.

I would assume that if it was running then it will be ok, im going to take it with me next time on the lake and give it a shot. The only thing that concerns me is if the motor wont run for whatever reason and i try to connect it how would i pull the trouble codes to fix it??

Contact ED at Rinda. When boaters have a problem like this, the first place they should go for help is to the company that makes and services the item.

Best Regards,
Ray @ Raylar