I am new to this forum, this is my first post. I found a topic here, but is unfortunately closed, so i decided to open a new one to get ideas (hopefully) to my problem.
I have a 1996 Volvo 850 with speedometer problems (sometimes it stops showing actual speed while driving - then odometer also stops).
I was told that it might be an ABS related problem. So I purchased an USB KKL 409.1 OBD2 cable (this) from ebay. I downloaded VOL-FCR SERIAL demo (also tried usb version - doesnt work at all). The cable's virtual port was set to com1 as suggested in the above linked topic.
The software was able to establish a connection to the car, it was able to query model and software IDs but then it failed reading trouble codes saying 'comms lost with car, null time out or message error'..
volfcr1.jpg 19.49K
61 downloadsI dont know what might be the problem, I would be very thankful if someone could help me out with a good advice!


















