Picked up the yds cable and disc off eBay. Went down to boat to try and figure out what the heck is wrong with one of my engines. Downloaded all the necessary steps but when I hooked up the cable to engine all I kept getting was an error message saying unable to connect pc to ecm. What am I doing wrong or did I get scammed on what I bought?
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I also got one that I bought from ebay... it's an OBDII with FT232R USB UART and came with v1.33...
I've just downgraded back to windows XP to try putting this to work but I also keep getting the "unable to connect pc to ecm" message even after switching to COM1 port...
In the YDS v1.33 manual it says to turn off the pc, connect all the cables and then turn the pc back on, put the ignition key on the ON position and start the YDS program
Did you turn on your ignition key?
I've done all that and it still won't overcome that error message....
(also, all the 6 fuses on my LF225 are good so the problem isn't that)
Anyone with any ideas?
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You might have two com1 ports in your computer. The original com1 and new com1 created by Yds installation. Yds installation creates new usb-serial com1 port. You can change the original com1 port to unused com port: follow instruction in the link. Change communication port com1 settings, not USB serial settings. Restart computer after the change.
HowTo change the USB port number in Windows XP.
An other reason might be that the usb serial port driver is not installed properlyLast edited by jounim15; 05-24-2015, 03:56 AM.
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