I have the code 0753. Trans 3-4 Shift Sol/Trans Relay Circuit. The tranny will not shift into overdrive. Is there an electrical relay some where? if so where? can I fix this myself?

Thanks in advance.
tel

98 Dak
5.2

 

i believe that is inside the transmission.

 

There should be a relay in the power distribution center - which is located under the hood. (With all the other fuses and relays)