No power for heater fan, windshield wiper and power windows (1 Viewer)

[Davew]

Has anyone had this happen?  Went out the other day and started my 2017 HD8 XT full cab.  The power windows, wiper, heater fan motor and the overhead cab light did not work.  I checked all of the fuses and they are good.  I'm thinking the issue might be the electrical harness somewhere.  Has anyone experienced this issue?

 

[Drainagefarmer]

I’ve got a 2016 hd10 cab. Same thing happened.  I lost ground to my aux power bar.   I’m not sure how.  I was checking for power with my voltage meter and had 12 volt to the roof, but when I checked continuity on the ground wire I didn’t have it.  Not sure what the problem was as I grabbed some wire from my shop and ran it to the battery. Everything worked again.  I was in a hurry and needed my auxiliary lights for work, so I got it going.  

 

[Cody Anderson]

has anyone figured this problem out yet? I have a 2017 full cab hd 10 and the same thing happened?? No power on the busbar up by wiper. If I get power there will all 3 work again?

 

[Steelslinger]

As stated above, check continuity on the ground wire from the under dash buss bar. Could be a loose or broken ground wire.