Hello everybody out there. I own a 97 Gmc Yukon i am haveing a little problem with the power door lock switch on the driver side and the passesnger side doors. i check the fuses,wireing, and the main controll located in the the engine and everything appears to look fine. I even purchased a used main controll switch and it still is not working like it should.The only way i can open the door is through the remote controller or the key. What can be the problem can somebody please help me solve this issue. Thank you.