I get the r07 code bottom right corner. Auto focus does not work. Can you help. Nikon 3200 camera.

SOURCE: SONY DCR-HC42 - auto focus will not work ???

that problem is on the lens assembly...one the two motor is not working properly...sometimes it is a poor connection to the socket of the main board...other is photo sensor of the lens(not the ccd image sensor)or the driver ic of the 2 motor...i suggest you have to go the service center for repairing you camera cause it need to disassemble the camera for doing this....

SOURCE: Nikon D300 - Auto focus point won't move. Autofocus doesn't work.

The lock that's around the 4-way button that moves the AF point will stop it from moving. The AF switch (says C,S,M) on the body below the lens release button gets knocked to manual and turns off the AF

SOURCE: I am getting an r07 error message on my D70; works

Try cleaning the contacts on the camera body and lens where they meet with a cotton swab lightly dampened with rubbing alcohol.

SOURCE: Nikon Auto focus problem with the 18-135 KIT lense

I had this problem and just realised it today. I found out that it was a a settings problem. What I had done without realising was I had my "AE-lock" button functioning as "AF-ON" which meant that my autofocus would only turn on when I held the shutter half-way and pressed that button. Once I turned this function back to its original state of "AF-Lock" as opposed to "AF-ON", it worked fine.
My symptoms were: • soft mechanical noise when holding the shutter (i thought it was trying to focus but couldn't. I thought the mechanics for the AF were faulty) • Couldn't take photos unless they were in the set conditions (which makes sense because it was locked on a certain setting until I pressed the AF-ON button).
My camera is only a few months old so I wasn't convinced it was faulty/broken. Make sure you test all of your settings and go through each of them before you chalk it down to equipment error.
Hope this helps.

SOURCE: Nikon D50 with Nikon DX 18-55 lens will not focus

Hi,
Sorry to hear about your lens. If you are able to autofocus and take pictures with any other lens, then it means that your problem lies with the kit lens. If you can take picture in manual mode, but not in autofocus mode, then the AF motor in the lens in not functioning. I had the same thing happen to my 50mm 1.4 lens.
Depending on your location, there are Nikon repair centers in Melville, NY and Torrance, CA.
Hope this helps,
Andrew