Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
Hello, my name is John.
The test for this code is pretty straight forward with testing the solenoid, but since you have already replaced it then I agree this is probably a computer problem as long as the wiring is all okay. There is no seperate transmission computer for this vehicle. The transmission is controlled by the engine computer or PCM (Powertrain Control Module).
Please let me know if you have any additional questions about this repair.