My left turn signal functions as normal. My emergency flashers (all 4) work normally. The right turn signal on my car (1994) flashes quickly, as if a bulb is burned out, but both the front and rear bulbs flash. The only thing potentially related to this is that I spliced a wiring harness for a trailer into my wiring harness. I haven't yet checked for a shorted wire, but are there any other possibilities?