My 2005 Dodge Dakota is stuck in 2nd gear, and I have tried everything I know to do. I have changed the transmission, I have replaced both the pcm and the cpu. All to no avail. Can someone shed some light on my problem?

 

You need to provide the error codes for any possibility of advice.

 

p0700; p0731; p0755; p0760; p0888; p1684.

 

make sure fluid is topped off, try going thru the gears when starting off, low to drive, if issue is still present then possible shift solenoid or valve body is screwed. other and last thought, disconnect battery for a few hours and see if computer resets itself

 

U wouldn't believe me but I went thru the same dam thing on my 03 dakota.i was changing this an that.then i kick back for a min.an thought what was going on before.well I change out the front wheel bearing then reset the computer.sure of **** it was that this whole dam time.Now I'm not saying that it could be what's going on with your but don't over look the simple things.i was driving back from the cost going back to San Antonio tx.i should had thought of that from the beginning..sorry for the long reply...

 

thank you for that nugget of information. I'll definitely check into that as soon as I get back home!

 

still in limp mode
I only have speed sensors in the transmission, and even though I left the battery undone for 24 hours, I am still in limp mode. I also have no power to shift solenoid relay. Also, still getting the same codes as before, p0700, p0731, p0755, p0888, and p1790. I have been advised to replace the transmission wiring harness. Can someone please help me, before I just give up and sell this thing for scrap???!!!

 

I would suggest that, as Eric O at South Main Auto says, you've got a case of the Green Crusties. Somewhere on that wiring harness something has worn or chewed through the insulation and shorted or opened some wires. Start looking for that, if you see nothing obvious, get out an ohm meter and do some testing for continuity and shorts. There is nothing magic about wiring harnesses, except that they are all bundled up and a real female dog to work on because they are tucked away in the most inconvenient places. Find the break or the short and repair the wiring.

 

I unplugged my harness, checked all of the pins and plugs, plugged it back in, and now is shifting like it's supposed to. Thank you all for the sage advice. You have been most helpful.

 

You may have a wire that is frail inside the haness and may need to make a jumper wire for the circuit. I have run into this before. Ended up been a wire that was the problem. Have you check the fuses in the pdc as well. I will check on circuits on what you need to check later.