Have 1998 2500 12 valve
tranny is in limp mode
error codes
P0753 Shift Solenoid A Electrical
P1765 Transmission 12 volt supply relay control circuit
Transmission relay is good, changed out the speed sensor on tranny,I believe Solenoids in tranny are good because if I put a jump wire where the trans relay is from its power #30 to where it is surpose to close # 87 the tranny shifts fine, so what ever makes the relay close must be my prob I think, anyone know a procedure what, where, to test to track down my prob.

 

No electrical guru's here??

 

hi
i have had that code and by simply erasing the code it corrected the problem .
erase it and test drive it and see if the code returns .

 

done that, just comes back