Just had this issue with my 2008 Honda Fit; error code P0847 with "D" light flashing. The current Honda part number is 28600-RPC-004 (Automatic Transmission Pressure Switch) All fixed.
Thanks to all that contributed to this thread!
My Fit is happy again!

 

hello from Puerto Rico. I am new to the forum although I have been reading the posts for a long time, I have an uncomfortable problem, if someone has passed him on about this code, first he had the code p0848, I bought the sensor and I also bought the oil filter (both on ebay) Before changing the parts, the D would blink, if I turned off the fit the light would return to normal until it failed a few miles, after changing the sensor the fit improved a lot, but now comes the problem, I drove a few miles and everything was fine. At the moment the D started to flash again and it no longer goes off even if I turn off the fit and turn it on again, so now it gives me the code p0847 .. the oil level is fine .. has someone else happened to this?

 

YES I have two codes, P0756 & P0847. I am not mechanically inclined in the slightest, but my dad is going to help me do the repairs. What parts did you end up ordering, and did that fix the problem?I'm getting so confused with all of these different part numbers, and I just don't want to order the wrong ones! I know it's been 6 years since you commented this, but I figured it was worth a shot to ask.

 

Thanks for the info y’all.

The auto one part # is PS795 (for a 2008) it comes w a crush washer, but the crush washer ID need to be 10mm if younsource from somewhere else. You need a 22mm SEMI-DEEP socket to get to it.