: A while back I had some transmission codes, hard shifting, not shifting, etc. The dealer said replace TCM for $900. I replaced the wheel bearing due to ABS error and codes went away.
Last week, CEL light came on and trans started shifting hard, all four light (PRND) would be boxed at the same time. Wouldn't shift out of first. When I went from P to N for a second, then it would run fine. Same pattern several times.
I took it to trans shop who said it gave errors codes 1672, 0404, and P0710. The 0404 says it is related to the EGR valve. Chrysler says there is no EGR valve on this car. The P0710 is supposed to be trans temp related, I believe.
I know the trans needs to be serviced, but I think the TCM is internal and I don't want to service it and then have to go back and replace it, essentially servicing it twice.
So, any ideas on next steps. I was going to replace the EGR valve and see if that fixes it. But apparently I can't do that (which makes me wonder why it gives a code for something that doesn't exist).
BTW, the CEL is now off and everything is running fine. The codes were not reset.