(Solved) Car Turn Lights Not Working Tutorial

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Car Turn Lights Not Working

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Some vehicles utilize two fuse boxes, one in the passenger compartment and another under the hood. When the heat reaches a predetermined temperature, a metal strip within the unit stretches due to the heat and breaks the electrical circuit turning the bulbs off. On most vehicles the flasher unit is located on the front or on the b The cycle will continue as long as the directional switch is turned on. Source

USUAL CAUSEThe turn signals use a flasher unit that acts as a repetitive circuit breaker. The usual cause of inoperative turn signals is a defective bulb or flasher unit. CORRECTIVE ACTIONPrior to performing extensive diagnosis, check the vehicles fuses to ensure they are not blown. If the turn signals are inoperative in both directions, a defective flasher unit or blown fuse is the usual cause. https://www.2carpros.com/articles/turn-signals-not-working-blinker

Turn Signals Not Working At All

The reduction in current flow prevents the flasher unit from reaching the needed temperature to switch the bulbs off. This unit makes then breaks the electrical circuit that turns on the turn signal bulbs. About.com Food Health Home Money Style Tech Travel More Autos Dating & Relationships Education Entertainment en Carl's Corner - Auto Repair Help DIAGNOSE - THE Once it has cooled, the metal strip re-contracts and re-closes the electrical circuit turning the bulbs back on.

The flasher unit is used to switch the current on and off for both right and left directionals. When a bulb blows, the current flow in that side of the circuit will be reduced. When this occurs, heat builds up in the flasher unit. Turn Signal Relay With the bulbs disconnected from the circuit, the flasher unit cools off.

Turn the directionals in the position where they are inoperative and perform a visual inspection of the exterior bulbs. How To Fix Turn Signal Switch Replace any bulbs that are not lit. When the switch is initially turned on, electrical current flows through the flasher unit to the bulbs. If the directionals only flash in one position and are off constantly in the other direction, the usual cause is a burnt-out bulb.

Consult your owner's manual for fuse box locations and fuse ratings. Turn Signal Repair Cost This unit relies on heat build up caused by electrical current flow to determine when to break the circuit.