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I have a 2017 13” function keys MacBook Pro and the keyboard is giving me a hard time. Some of the keys on the right side are sticky, the backlight doesn’t work at all and the caps lock light indicator doesn’t light up either. Could this be because of the keyboard cable, a motherboard problem or could it be the actual keyboard? I called Apple and they said they could address the sticky keys since they have a program for it but, this wouldn’t address the keyboard backlight and that the computer is out of warranty. Should I go ahead and try the program and see what happens? Does anyone here have any idea what could be the problem? Mainly for the keyboard backlight and caps lock light.
The symptoms you’ve described do sound like a liquid spill related problems, so before going to Apple I would still open my A1708 and check all those water indicators inside just to be sure that it is not it. The Keyboard replacement will fix only keyboard (including its cable) related problems, but it is worth a try. Though, if there was a spill, there could be a list of other issues manifesting itself just like that. I would look for any sign of oxidation on the motherboard and decide what to do next from the results of that inspection. Good luck
