When I reverse, error reads "Check Rear Lights/Brake Lights" and then car stalls out. When I roll electric windows, car either sputters or windows don't work, unless car is off and starter on they work very slowly. Top doesn't even budge when I try to put convertible top down. When I put heater/air on, car stalls quickly after even when I'm driving. Blinkers also cause car to sputter and they only work half the time.
What is causing my car to stall when I reverse/roll windows/turn heater on? on 1998 Saab 900