47re trans issue

[Dakota,97,12vcummins]

Ok I have a 97 dodge 12v cummins with the 47re 4 speed auto I'm have shifting issues and no overdrive it has a big delay in shifting from 1st to 2nd to 3rd and sometimes I dont have my 4th gear  . The speedo does not work and od off light stays on with the trans temp light . I replace all the electrics in the 47re with filter and accumulator spring and the output speed sensor  on transmission and the sensor on the transfer case . Does anyone know what this could be could it be any other sensors or pcm or could the tranny be going out

[IBMobile]

Check the wires and connection from the trans to the PCM.  When I was testing my trans with the trans unplugged from the PCM I would have the trans temp and O/D light on.  If the connections are good then have the PCM tested. 

[Evan]

Grid heater connections below drivers batter might be loose