Explanation of Canon's "Error Codes"

I see a few questions regarding "Error Codes" so i posted this link .

http://www.learn.usa.c​anon.com …2012/eos_error_​msgs.shtml

auto-clicker wrote in post #16176637
I see a few questions regarding "Error Codes" so i posted this link .

http://www.learn.usa.c​anon.com …2012/eos_error_​msgs.shtml

unfortunately the one you don't want to see is the one most often displayed ERR 99
"A system malfunction has been detected"

watt100 wrote in post #16177363
unfortunately the one you don't want to see is the one most often displayed ERR 99
"A system malfunction has been detected"

Now that ERR 99 can be anything.
For example I had a Nifty-Fifty, that would not take pictures at f/2.2.
If I wanted to use it at f/2.2, ERR 99.
At all other apertures it was working great.