What state is in box 15?

Is your daughter a resident of CA? Or is she just there for the *primary* purpose of attending college as an undergraduate? If not a CA resident, then what state is she a resident of?
Typically, an undergraduate college student retains the home state of their parents, assuming they lived with their parents prior to leaving for college.

@Carl box 15 says CA. box 16 has same value as box 1, box 17 is blank.

She is full year resident of CA. 

per the return that I prepared for CA, she is not getting any refund and no taxes are due. so I don't want to 'pay' for filing CA tax return unless it is 'required'.  [and if filing is required I will do it manualy or  FTB calfile website. It's a stratight forward return only W2 and standard deductions]

When dealing with state taxes, either all three boxes (15-17) have something in them, or they're all blank. So just enter a zero for box 17.

@Carl quesstion was not about entering W2 in Turbotax. I am trying to find under these circustance is she "required" to file California state return (situation sumary is: filing federal return to get a refund, no amount withdelf for state, does not owe taxes, earning are less than standard deductions)

While the website at https://www.ftb.ca.gov/file/personal/do-you-need-to-file.html gives the impression it answers that question, it does not. But perhaps one of the links on that page does.

Thanks @Carl, according to that link she do not need to file.  she is not 'required' to file fedral reutn but only doing it to get a refund, she didn't earn income from other state, her income is below the limit that make it required to file, she is not getting any EIC or any refund for state whatsoever.