Hi i need help finding the issue with my truck,about a week ago the buttons on the left side of the steering wheel started to act up and i can no longer increase the volume only lower it ,cannot start calls only end them.I thought it was the switches so i went to the junkyard and got another set,the guy tested the switches on a similar truck and they were fine but when i put them in my truck i had the same issue so what could it be thanks.

to NICO!

I'd try to check continuity where the wires come out of the steering column. If I had to guess, I'd say your clock spring is damaged. You should be able to find some information on testing this in your truck's factory service manual - available at www.nissanservicemanual.com