the 850s do store mileage (to drive the service interval). On the 94/95s you can use the OBD1 diagnostics port LED to read out the actual mileage. On the 96/97s you can use a VIDA/VICE (not a generic OBD2 reader) or make your own reader that uses the OBD2 port to read out similar to the OBD1 with an LED and a button switch (sorry don't have the link handy on the diagrams/pin out). The OBD2 will tell you if your speed sensor is broken - but typically that will present with a flashing up arrow since the transmission and ABS rely on that signal as well.

 

Mine is an 88 240 DL. Can the OBDs work for this year and model?

 

88 240? I'm not sure it even have a OBD port. My answer was to any 850 owners. For future reference, First thing you need to do when posting a question is to post year, make, and model. You may want to make an account and post your question at http://forums.turbobricks.com/forumdisplay.php?f=12

Yes, really. Bad enough for someone bring up a 3 year old thread with a 88 240 question, which have no relations to original thread question whatsoever. Make you own thread, https://volvoforums.com/forum/newthr...newthread&f=16 . It'll ensure every see your thread and your question, so your question is not buried under a pile of unrelated information.

 

Will do, sorry. I am new to this forum.

 

no worries... just a few best practice ideas for all forum users -
1) add your location and your year/model to your profile 2) post threads in the most appropriate board - model specific boards are best when asking about a year/model 3) start new threads when asking about your own interests - old dates and prior comments tends to confuse contributors. 4) Google is your friend (and Youtube is a Google property...) which can give you some insights on what to include in a post. As an example, try googling "Volvo 240 speedometer cable" and you'd see forum threads, youtube vids on how to repair the cable etc. A great way to frame up a question for the board. Lots of love for 240 owners on the Volvo forums.