Was driving my car earlier and I got a Coolant warning light, and the car was juddering & lost power so I pulled in, checked for leaks etc... and didn't find anything. My coolant was a bit on the low side, but still over minimum. My first thought was coolant temp sender but i've changed that within the last year so probably not that. I went out again tonight after topping the coolant up to see if it was just due to thew low level, but now that it's dark I noticed my headlight is off, my front indicator doesn't work and sidelight was flickering. Turns out I have a split wire in the light which was shorting as the engine vibrates. Obviously this afternoon it was still light so I hadn't noticed this. Could the short in the light cause a "false" coolant fault?