My driver side window suddenly stopped working. All other windows work. All power seats also work. There is no sounds or anything else. How can I determine which is the problem; switch, motor,? Could the circuit breaker be bad but yet still work all the other windows and seats? The only other thing that I noticed when trying to get the window to work was that the window lock out switch, the one used to make all the windows except the driver not function, does not stop the other windows working like it is suppose to. Could that be the circuit breaker?

. Test all under dash and under hood fuses with a test light or multimeter.

. Check/replace the lock-out switch. Try spraying the lock-out switch and power window switch with WD-40.

. Remove the door panel and check the lift motor assembly, if the problem persists.