Electrical issues, Gauges, radio, AC controls not working

[TheGageinator]

2002 Suburban 5.3L 2wd LT

I tightened up my steering column wobble today and removed an old alarm system that didn't work. After that, I'm having electrical issues with a few things. My Tach/speedo dont work as well as the ODO and message center. The radio / ac controls have backlight, but do not work. The truck starts and runs just fine. I have a trip planned for tomorrow evening, and I'm stumped! I made a video to illustrate my issue.

 

[TheGageinator]

I figured it out! I checked all the fuses (with a multimeter testing continuity across the tops) at least 3 times prior to puling the whole dash apart looking for bad wires. After hours of wire tracing, I decided to pull each fuse out and visually inspect it. ALL that work for a blown radio fuse...IT WAS THE 15 amp FUSE FOR THE RADIO IN THE ENGINE BAY FUSE BLOCK. Hopefully my incompetency will help the next guy. The fuse was clearly blown even though my meter didn't catch it.

 

[Big Mama]

Thanks for closing the loop for the next guy. Electrical problems are hard to diagnose. Did you check your rigs large ground cables too?

 

[Fless]

Easy enough, in circuit, to test voltage on both sides of the fuse using the built in test points on top of the fuse.

 

[S33k3r]

I figured it out! I checked all the fuses (with a multimeter testing continuity across the tops) at least 3 times prior to puling the whole dash apart looking for bad wires. After hours of wire tracing, I decided to pull each fuse out and visually inspect it. ALL that work for a blown radio fuse...IT WAS THE 15 amp FUSE FOR THE RADIO IN THE ENGINE BAY FUSE BLOCK. Hopefully my incompetency will help the next guy. The fuse was clearly blown even though my meter didn't catch it.

I am glad you figured out your issue, and thank you for reporting back!