i have a 20” lightbar on my RZR - not working. One set of wires comes fromp battery terminals to a relay. Two sets from relay - red and black go to light - black, blue, and white go to switch. Wires to light - black wire is bright light on test light, red wire test light glows dim. Wires to switch - black wire bright on test light, blue light dim on test light, white light - no light on test light. Swith on or off makes no difference. Bad switch? Why does red wire to light glow dim on test light?