2001 Honda Accord heater Blower issue

I have a 2001 Accord Auto V6 LX Sedan . The Blower motor is not working all the time, I have the factory service manual . Got the volt meter out and pulled out the glove box, started checking voltages on the wire side, then I hit it with a jumper, still nothing. little while longer while I was driving it came on, blowing full blast. I havnt been able to get back to work since. I got the schematic diagram, I need to check the G401, and G202 grounds. I see them on the diagram , the actual physical location of these grounds. Thats what I’m after, so I know what I have to take apart to get to.So I can check those grounds , and if thats not the problem, go on to the next circuit. Any help would be appreciatted,

thx
jeff