Limp mode?

Internal failure! Hearing that concerns me even more. I changed the trans fluid and found no metal attached to the magnet inside the pan. I just have a gut feeling that it's an electrical issue because there were absolutely no signs at all that would lead me believe that it is a mechanical failure. It just happened overnight. P0882 code says low voltage to TCM. Why is it saying this when the TCM is integrated into the PCM?

Transmission problem
2003 Dodge Caravan 6 cyl Front Wheel Drive Automatic 165k miles

Hi. I have replaced the input and output sensors on my transmission. I have also changed the the transmission computer with a used one. I have checked connections for bad wires, all looks good. When I removed the battery cables overnight the transmission shifted fine for a half mile then back to it's limp mode. I'm wondering if you think it could be the pcm? I'm also wondering how do I test if is the pcm before I buy one. I have found a used one and I'm wondering if it has to be programed before I install it. I guess I'm wondering what will happen if I just plug the new pcm into the van? I have also read about a solenoid pack? I'm not convinced it's the solenoid pack since van shifted fine for a half mile. Any help would be great.

I have a 2003 caravan with 125000 kms on it drove the van one day ran fine not a problem next morning started it got 10 feet out of driveway and engind light came on as I drove further sounded like it was revving high found out later it is in limp mode tranny only shifts into second code comes up Engine Speed Input Circuit dealer told me it was either input or output sensor on tranny changed both no difference I still have my speedometer do you know what might be causing this problem

Already changed both speed sensors as well as crank position sensor does the computer reset it self or does that still have to be done by dealer the code coming up is p0700 and p0725

Transmission problem
2003 Dodge Caravan 6 cyl Front Wheel Drive Automatic 165k miles

Ok I still have not gotten anywhere on this van. I have received these codes p01684 p0700 from turning my key on off on. I have also received p0755 from a scanner. I have replaced the input and output sensors I have also had the tcm reprogrammed and the pcm repaired and reprogrammed. My transmission is still stuck in limp mode. Pcm and Tcm were rebuilt from auto computer exchange. Com. Does anyone have any idea/suggestions. The transmission fluid is clean and does not smell burnt or have metal filings. I wanted to know if there is a way to test the solenoid pack before I bought a new one.

I have replaced the battery. I was told to by the tcm/ pcm rebuilder to do so when I reinstalled the parts. Today I read a article about making new ground paths. I ran a 10 gauge wire from the negative to the alternator bracket. I also ran one from the negative to the tcm. I still have the same results ( limp mode). I did notice the conncection to the shift solenoid was a little dirty / oily. My money is limited so I was wondering if their isn't any loose wires going to the solenoid pack would you think it's the solenoid pack, also would you buy after market or from dealer?

My caravan developed the following problem this past weekend, transmission would shift to 2nd and would not shift any further. I took vehicle to repair shop and they found the following error codes, 0700, 0733, 0734 and 1790. The repair shop recomended that I replace transmission to the tune of about $3,000 at the moment with times as hard as they are, I cannot afford it. I have been on you site and have noticed various posts on dodge transmissions and one recurrent solution is to replace the solenoid pack. Is this a job that I can do, I have worked on my own cars before, changing water pumps and other various items. Where is this solenoid pack located and is it an easy replacement? Thanks!

I am following up about a transmission issue that I had posted earlier. My grand caravan slips into limp mode periodically. So far I have had the ecm and the tcm flashed and reprogrammed. The solenoid was replace 11 months ago. I have replaced the relay for the eatx. I have checked and verified the grounds for the transmission. The codes I pulled when this all started were p0700 p1776. I also need to replace the sensor for the ABS. The can will go from 1 day to 4 days will out dropping into limp mode. It does seen to happen at the same point of a commute, when the van needs to down shift a lot going up a hill. I am just looking to see if you may have some insight/familiarity with this.

I have a 2003 dodge grand caravan with a 3.3, I am stuck in limp mode, only codes I get are p0700 and p1684, I have replaced both output and input speed sensors, I have tested wires I am weighing on it being either a bad TCM or the solenoid pack, I however believe that I am of fault as to why it went into limp mode, I was at a red light, I needed to get over a lane, so me being an complete **** I applied the break and gas pedal to anticipate the change in the light switching to green, when I let go of the brake, I noticed the limp mode, any aspect as to what I may or may not have done to cause this will be greatly appreciated

I've checked the pins 56 and 57, I have positive connection at 56, and grounded connection at 57, when the car is running, it seems as though I have a ground connection at 15, I've read that that was suppose 12v positive don't know if that's an issue or normal.