KyleRomine29

I have a 95 Silverado with a 4L60E and i have these codes DTC 58 Trans Temp High, DTC 72 Output Speed Sensor Loss, DTC 81 Quad Driver Module & Shaft B Fault, DTC 79 Trans Hot. i dont know where to start or where these sensors are located, should i replace the sensors or the PCM? PLEASE HELP!!!!

KyleRomine29

i am going to start with the speed sensor and a trans flush with new filter and check the grounds then see what happends next

mrvedit

I would also check the wiring cable going to the trans and the speed sensor. Make sure it didn't touch the exhaust system and melt. When you drop the pan to change the filter, also check the condition of the wiring inside the trans.
Sorry not to have better advice, but this is outside my experience.