I wanted to quickly post a recent experience in case it helps some other poor sucker with a failed speedo. I own a 2007 990 Adventure. At around 7000 miles the speedo died. I spent countless hours trouble shooting all the conxns. Bought a new speed sensor cable (70-80$) and this did nothing. Spoke to several dealers and finally took to my local guys ( not much faith in them initially as they had no ideas and only recently picked up the brand, so no certified mechanics at this mega-dealer with 5-6 brands under one roof). But....they fixed it!!! The head mechanic spent some quality time on the phone till he found a guy with lots of experience. Who said..... Replace the $ 38.00 ABS switch! Presto and fixed for less than 50.00! The 'guru' reports that this is a very common fix, so since I used ADV rider forums for several months and never saw this mentioned thought it might be helpful.