Back up Camera shows black screen intermittently
 

I have read that the camera will not work if the fuse is blown. Clearly that is not the case as it has worked on and off the last couple of days. Has anyone else experienced this? 2017 CRV Touring. I cannot bare to have the stealership charge me an hourly rate to diagnose this issue.
Thanks for your help!

Need to see if it's camera, head unit or wiring. Being intermittent they would likely replace the camera and if that didn't fix it replace the head unit. If that don't fix it they would look at wiring.

Thank you, I am very scared at the cost of that.
I may have to do without the back up camera lol