The washer pump comes on by itself any time even with the key out. It emptied the reservoir and still kept pumping, all fuses have been pulled one at a time because i don't have the fuse location schematic. The right rear signal light comes on by itself and stays on or flashes very fast from time to time with the key out. Could it be water somewhere or would i have to remove the fuse box to check for corrosion. I did drive through a deep puddle just before all this started. I get the car rust proofed every year and there is 110,000km on the car.