P12 and P0601 Full Reflash

[Chevy366]

Well had a strange bout with the TB, after replacing the battery the truck developed problems, one of the A/C actuators went out (blend door), after fixing that the A/C blower motor resistor went south, that is when we got the P0601 code, the wire that fried was the ground wire to the blower motor resistor, it must have caused a fault in the PCM memory. Long story short after resetting the DTC several times to have it return and truck dying because of fault, I full flashed the PCM and that seemed to fix the problem, knock-on-wood.
Just thought I would share in case someone had the same issue.

[joecar]

Interesting... ground's have a huge impact on the rest of the system... thanks for posting.