Switch in series, check individually if one is open or closed

I have a safety path for a relay, that disables the power when one of two switches is triggered. To detect, which switch is triggered, I tried to implement something like the following, but it is still not working correctly, since it will only detect, when S2 is closed or open. It only works, when the supply for the logic is 12V instead of 3.3V

I need to convert the signal to 3.3V for the uC. Do you have any improvments on the scheme? I don’t want to go with optocouplers, since they need around 1mA of current, which will energize the relay coil too much.