How can i get my transmission to shift correctly ? Should i put the old pcm back in my car ? Reset pcm thru dealership ?

DTC P0401 Exhaust Gas Recirculation (EGR) Flow Insufficient
Probably plugged passage's , not the EGR valve .
What type code reader are you using to read these codes ? I have factory service info. Doesn't show P0842 or P0642 , no such codes . You don't show what engine yours has , I'am assuming you have 3.5 L !
P0604
Control Module Random Access Memory (RAM)
PCM
DTC P0601, P0602, P0603, P0604, P0605, P0606, P0607, P1600, P1621, P1627, P1680, P1681, P1683, or P2610 in Engine Controls - 2.2L (L61)
or
DTC P0601, P0602, P0603, P0604, P0605, P0606, P0607, P1600, P1621, P1627, P1680, P1681, P1683, or P2610 in Engine Controls - 3.5L (LX9)

P0717
Input Speed Sensor Circuit Low Voltage
PCM
DTC P0717 in Automatic Transaxle - 4T40-E/4T45-E
P0741
Torque Converter Clutch (TCC) System - Stuck Off
PCM
DTC P0741 in Automatic Transaxle - 4T40-E/4T45-E
P0742
Torque Converter Clutch (TCC) System - Stuck On
PCM
DTC P0742 in Automatic Transmission - 4T40-E/4T45-E
P0748
Pressure Control (PC) Solenoid Control Circuit
PCM
DTC P0748 in Automatic Transmission - 4T40-E/4T45-E
P0751
1-2 Shift Solenoid (SS) Valve Performance - No First or Fourth Gear
PCM
DTC P0751 in Automatic Transmission - 4T40-E/4T45-E
P0752
1-2 Shift Solenoid (SS) Valve Performance - No Second or Third Gear
PCM
DTC P0752 in Automatic Transmission - 4T40-E/4T45-E
P0753
1-2 Shift Solenoid (SS) Control Circuit
PCM
DTC P0753 in Automatic Transmission - 4T40-E/4T45-E
P0756
2-3 Shift Solenoid (SS) Valve Performance - No First or Second Gear
PCM
DTC P0756 in Automatic Transmission - 4T40-E/4T45-E
P0757
2-3 Shift Solenoid (SS) Valve Performance - No Third or Fourth Gear
PCM
DTC P0757 in Automatic Transmission - 4T40-E/4T45-E
P0758
2-3 Shift Solenoid (SS) Control Circuit
PCM
DTC P0758 in Automatic Transmission - 4T40-E/4T45-E
P0815
Upshift Switch Circuit
PCM
DTC P0815 in Automatic Transmission - 4T40-E/4T45-E
P0816
Downshift Switch Circuit
PCM
DTC P0816 in Automatic Transmission - 4T40-E/4T45-E
P0826
Up and Down Shift Switch Circuit
PCM
DTC P0826 in Automatic Transmission - 4T40-E/4T45-E
P0973
1-2 Shift Solenoid (SS) Control Circuit Low Voltage
PCM
DTC P0973 in Automatic Transmission - 4T40-E/4T45-E
P0974
1-2 Shift Solenoid (SS) Control Circuit High Voltage
PCM
DTC P0974 in Automatic Transmission - 4T40-E/4T45-E
P0976
2-3 Shift Solenoid (SS) Control Circuit Low Voltage
PCM
DTC P0976 in Automatic Transmission - 4T40-E/4T45-E
P0977
2-3 Shift Solenoid (SS) Control Circuit High Voltage
PCM
DTC P0977 in Automatic Transmission - 4T40-E/4T45-E

Sometimes with code readers they get confused an just throw any old codes . Have it checked by someone with GM Tech 2 scan tool .

Did they change the BCM or PCM? The BCM doesn't have anything to do with the gauges or transmission shifting or the PRNDL lights. The transmission range sensor is where I would start. This sends a signal to the PCM, from the PCM to the PRNDL lights. The PCM also reads other sensor for shifting. I would have to put it on a scanner to see what was going on. Three things I would definitely check are the range sensor, wires from the range sensor to the PCM and the PCM.

did the original pcm have thee missing pin, they may not be missing they may be left out in engineering, as far as the trans not shifting, was the pcm reprogramed because if you just installed out of a box it unlikly that it will shift

Not shifting out of 1st (probably 2nd gear) is called "limp home" mode designed to prevent further trans damage from a mechanical or electronic failure. While the problem could be ecm/pcm related, that is very unlikely. Getting someone other than a dealer to try to diagnose the problem is very risky. If a dealer tells you what is wrong and gives an estimate to fix it, he then owns the problem. This will likely save you grief and money in the long run.

make sure you have VSS SENSOR ELECTRICAL CONNECTOR CONNECTED, AND ITS NOT UNCONNECTED.more likely the dealership has to reprogram new transmission to the TCM PCM so transmission will shift correctly.

you might have to take your dodge to the dealership so they can flash the computer.... call them and ask.....

TRANSMISSION HAS TO BE REPROGRAMMED IF NEW ELECTRONIC PARTS PUT IN OR YOU BUY A NEW TRANSMISSION.BECAUSE TRANSMISSION IS PCM AND TCM CONTROLLED NEW PARTS HAS TO BE REPROGRAMMED TO THE PCM AND TCM BEFORE TRANSMISSION WILL SHIFT CORRECT.

Hello! There is a Technical Service Bulletin; TSB 06-14-10 for this vehicle that addresses water entering the Power Train Control Module (PCM...computer) or Transaxle vent which will cause transmission problems...A fix for this problem is available at your dealership...Your vehicle does have an electronic shift transmission...Which is controlled by the PCM...No individual fuse powers the digital shift circuit...It powers the PCM...If a fuse were blown the vehicle would not start...

Guru......Saailer

I’m happy to help further over the phone at https://www.6ya.com/expert/david_6df67de3b14de867

Hope you put a PCM in. TCM is in side the PCM. The TCM sometimes needs a brake in period. 200 miles. If not call the dealer to have then flash the PCM with the updates. Around $80 at the dealer. Tell them you want to FLASH to PCM for bump shifting. Any Chrysler, Jeep or Dodge dealer can do this in 1 hour. Thers a Chrysler TSB #2101807 Dated 10-27-07 about Transmission Reprogramming. If the dealer put the PCM take it back tell them about the TSB

Transmission does not shift automatically, only manually. Swap in a known-good PCM, check wiring, check other sensors such as VSS and TPS.

Trans shifts into gear harshly, car feels sluggish off the line, No 1st, 4th or TCC lockup available, Manual 2nd, 3rd and Reverse are only available gears, CEL is on: Transmision is either in limp-home mode or has lost electrical power. If there are lots of error codes in the PCM, check the underhood fuse that powers the transmission, and if it pops again, look for a short in that circuit like an O2 sensor harness touching exhaust. Otherwise, check PCM codes for a particular fault in the transmission causing the PCM to put it in limp-home mode.

Car goes into gear but feels very sluggish like the brakes are dragging, but it will roll easily (starts out in 4th gear), you manually shift to 2 to get it moving, once it's moving you put it back in OD and the car shifts 3rd to 4th on its own and locks the converter at the appropriate time: ShiftB solenoid failed: Easy fix in the pan. Or a wiring problem from PCM to trans.. or PCM.

Good luck and get back to me, hope this helps.