Furthermore, a malfunction here could result in the corresponding left or right turn signal blinking too fast, or even too slow.

A fast-blinking turn signal usually indicates that a turn-signal bulb is burned out on that side. However, there can also be other causes.

The right blinker arrow in the dash blinks fast. I changed the bulb, but that did not fix it. What is the next step before seeking professional help? — D.C., Chesterton, Ind.

Read about the turn signal steering column bypass and see pictures as the turn signals get fitted and wired onto the headlights and taillights inside Rod & Custom Magazine.