joenobodyyet

My car (2008 Civic LX automatic 4 door, 75,000 miles) starting shifting weird a few weeks ago and the green light next do D(drive) started flashing, then my check engine light came on. I got codes P0847 and P0756. After about a week, the check engine light went off, and it seems to be shifting better again. I have read MANY posts online about this common problem and most say that it's most likely a bad transmission pressure switch sensor. I figured I would buy one and swap it out, but I am not sure exactly which transmission fluid pressure switch to get. Here are the 3 options I have seen in posts:

28600-RPC-013
28600-RPC-003
28600-RPC-004

I was sent this: "The 3rd Clutch Transmission Fluid Pressure Switch is Honda part # 28600-RPC-013 which replaced part # 28600-RPC-003.
The washer/gasket part # is 90471-PW7-A00. The switch is located at the bottom of the transmission housing."

So I went on eBay and bought a genuine Honda switch part 28600-RPC-013, but the person sent me 28600-RPC-004. I was under the impression that the -004 was for the 2nd gear/clutch transmission fluid pressure switch and the -013 (which replaced -003) was the 3rd gear/clutch transmission fluid pressure switch.

The guy on eBay says that the 28600-RPC-004 is the replacement part for 28600-RPC-013. Can anyone help and confirm if this is true or not? I would rather not take a gamble with the wrong part. Thanks

m_shake

28600-RPC-004 is the part number for the 3rd clutch pressure switch

joenobodyyet

Thanks, what are 28600-RPC-013/28600-RPC-003 used for?

Is 28600-RPC-004 what I need? I most likely need to replace the switch at the bottom of the transmission housing?

My error codes were:
P0847: 3rd Clutch Transmission Fluid Pressure Switch Circuit Short or Stuck ON
P0756: Shift Solenoid "B" Stuck Off

Thanks!

m_shake

28600-RPC-013 Was for 2nd clutch originally but supersedes to a 28600-RPC-004.

joenobodyyet

Thanks for the help. I spoke to a guy at the dealership (although I try to avoid dealership prices) and he told me that they are using the -004 for both (2nd and 3rd) switches now. So I installed the -004 switch yesterday and so far so good, although the check engine light hasn't been staying on for too long. Hopefully it doesn't come back though.