Yes, but you can stick a meter probe behind the inside cover to probe the white wire. No need to punch the sticker and void your warranty to do simple continuity checks. I just did it to make sure I wasn't giving out bad advice.
You will need to remove the guts to thoroughly inspect everything visually.
You will need to remove the guts to thoroughly inspect everything visually.

, well , better than nothing , thanks. Regarding your last comment , i think i'll stay away from that one lol..