Fog Lights in the Dark Diagnosing and Fixing Electrical Shorts

Most likely the multi function switch has gone bad, very common. Pull the fog light relay to kill the fogs and go find a new switch. Someone ... He could not work out why the light remained on. Assessed all the fuses related to the fog light. Removed the fog lamp. He decided to short the ... ... fog lights for over two years. Then the left light went out. I replaced it and a day later it was out again. Turns out the connector had melted and was shorting ... One of the most common symptoms of faulty fog lights is when they simply won't turn on when activated. If your car does not have automatic fog ... Have you checked the bulbs? The short can be the bulb and/or housing. There's also some wiring that passes through the fender that can get ... There is no relay included with the kit. My stock IROC foglights shorted out and I couldnt trace the short so I just installed a new pair of ... If the above test shows that voltage is present at the plug, check the bulb filament by jumping bulb connections to battery voltage and a ground ... Check polarity. LED's are picky. If they're hooked up backwards, they won't light. Backlit switch provides you with night readability. LIKE - Green Backlit Tall Push In Switch 1.54"x 0.83" (Fit: Toyota) USD 10.95. LIKE - Red Backlit Tall ... Start at the fog lights and inspect the wiring. It sounds like a chafed wire that is shorting out. Tundra234, May 21, 2020.