Turn signals not working, blowing fuse

Another thing you might consider is one type of short finder kit. This is a low rated breaker and resistor that you clip into the fuse which is blowing. Because of the short it will sit there and cycle. Meanwhile, the high current in the shorted wire generates a magnetic field. The tool comes with a deal that resembles an ammeter which is a fairly sensitive meter, that when held near a shorted wire, will indicate. You can move it along the harness to localize the short

KD Tools 2524 Short Circuit Detector | electric stud finder store

Yet another way is to "rig" an old socket with an 1157 and clip the 1157 bulb directly across the fuse clips. Now, the lamp will light and also protect the circuit. You can wiggle wires, etc, and look for changes in the bulb