Open Samsung Members app Click on "Get Help" on the first screen > Click on "Start" & then "Sensors".
See what the result of the test is.
You can also send an Error Report to Samsung by Clicking on the Error Reports
Device Care will sometimes produce an error that isn't accurate. Try Rebooting & Check with Device Care again after a few hours.
You could try turning OFF Adaptive Brightness & See if that helps the battery.
You can't really disable the sensor though.