AF and shutter release failure

You use Live view to get an accurate focus then turn live view off and then once 2 sec delay has been selected (this can be done before going into Live View) release the shutter.

PDF]PDF QuickGuide to EOS Live View Features

https://www.learn.usa.canon.com/.../CDLC_EOSLiveView_Q...

Canon Inc.Canon EOS cameras when used in their Live View mode. ... directly onto the sensor, which in turn displays the image ... EOS 40D, 5D Mark II, EOS-1D Mark III, EOS-1Ds Mark III, ... Mark III do not offer movie options. ... to produce a fixed screenbrightness, or Exposure .... settings for the following camera menu options:.

Canon Knowledge Center - Changing the AF Mode to Use ...

https://support.usa.canon.com/kb/index?page=content&id=ART134415

Nov 4, 2015 - ID : 8201360200 _ EN _ 1. Solution ... While the Live View image isdisplayed, you can press the < AF?????????DRIVE &gt; button to select the AF mode on the setting screen displayed. 9. ... If focus is not achieved, the AF point will turn orange. .... Shooting movies with the default settings (EOS 5D Mark III)

With the camera in the M- Manual mode, pressing the ISO button on top and rotating the selection dial in front of the shutter release button should allow you to change. If this doesn't work you may have a circuit board that needs repair. Royal camera service is Hanover Park IL is a good choice. They fix my pro cameras including my 1Ds II when I had it.

With black images and you cannot see shutter action, it sounds as though you have a shutter failure. There should be a "clean sensor" setting in the menu that will hold the shutter open until you power off the camera. If the shutter still doesn't open with this feature then the shutter has failed and will need to go in for repair.

With the EOS-1D series, EOS-1v and EOS-3, AF is possible, but with the center focusing point only

Bad Circuit board in the lens, Needs to be replace by a Repair Tech, tccamerarepair.com

I think you should upgrade you cameras software firts.

The first thought I had come to mind was the shutter has failed but, the Canon 1D MK II shutter is capable of 150,000 actuation. If you feel this is not possible then another thing you may want to look into is the memory card needing to be cleared of pictures and formatted in the camera, always format your memory cards in the camera. The Canon 1D MK II has two memory card slots it is possible to have one card undersized and it's run out of space, the camera will not automatically shift to the unused card it needs to be done manually through the small screen on the back.
This just happened to me while in a portrait shoot the battery died to the point it wouldn't even show the setting on the top LCD screen or the viewfinder. I replaced the battery and continued to shooting. The camera had been set on RAW but after the battery failure it began shooting RAW+ s jpg. If you had the camera set for jpg images and the battery failed as it did mine then it's entirely possible that the camera defaulted to small jpg files. Okay last suggestion and possible the most important. The Canon 1D MK II with original firmware installed is capable of working with a 4gig memory card Compact Flash or SD, if you have installed a larger card and just attempted to shoot with it without formatting, the camera will refuse to cooperate. If this is the case and you have installed a 8gig memory card(s) for example first try to format the card and if this failes then you need to go to the Canon site download the updated firmware for that camera and do an update. Everything will be good after you do this, when I did the update for mine there were seven updates one of which corrected the limitations on the memory card size. If the lens contacts are dirty and the camera is getting poor information from the lens you would I think receive a code 99 so not receiving any code of fault I'd say it's the card.

Cheers

may be shutter not opening fully some grit dust in it i had thia prob with my camera cleaned it and it was fine

if it's any help, I've got the top off my 1D Mk II and wiring as per photo link:

http://joeseph101.servebbs.com/Odd_files/3E7C3645-700.jpg

cheers.