Ambient occlusion map only white

[sudoWalker]

It seems that the Ambient Occlusion produces simple white images. When i use the regular way in the blender render properties-->Bake--> it works fine. Are there any settings to set up baking for ambient occlusion? I use Single/Batch Bake

[rssguy2]

Seems like you need to have a connected AO node in the material