GE S3700G2WW 6 months old. Does not agitate or spin. Pump runs OK. Belt and motor appear OK. How do I check the lid switch to see if it is bad? Or could there be another problem?

I took the cover off the controls and found a wiring diagram and guide. It explained that there is an indicator light above the motor that provides diagnostic messages. The blinks confirmed that the problem was the lid switch. I am replacing it.