Troubleshooting Trailer Wiring That When Connected Blows Vehicle Turn Signal

Question:

Iv been having a problem consistantly with my left front turn signal bulb blow when i connect trailer and get about half hr down the road. Only left front and only when trailer is connected. It does not blow any fuses. Also all light on trailer work even when it blows the left front blinker on the truck.

asked by: Justin

Expert Reply:

That's an unusual problem you are having. Most likely it's because your trailer's lighting is drawing too much amperage which is causing the circuit to overload and blow the bulb. Normally this would blow a fuse first but it's possible the bulb could go too. One solution would be to convert your trailer wiring to LED to lighten the amperage draw.

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expert reply by: Jameson C