What to Do When Turn Signals and Hazard Lights Don't Work?
1 Answers
If both the turn signals and hazard lights are not working, it is recommended to promptly check the vehicle's light switch and wiring harness for any short circuits. If necessary, visit a 4S shop for repairs as soon as possible. The solutions for non-functioning turn signals and hazard lights are as follows: 1. Check if the power line terminal of the flasher relay has electricity. If there is no power, inspect whether there is a break in the line to the power source. 2. If there is power, use a screwdriver to connect the two terminals of the flasher relay. If the turn signals light up, it indicates a fault in the flasher relay, which should be replaced. If they do not light up, inspect the flasher relay. Open the flasher relay cover and check if the coil and resistor are intact. If the resistor heats up and the contacts cannot close, press the movable contact; if the turn signals light up at this point, it indicates a fault in the relay. Adjust the contact gap if it is too large. If the turn signals still do not light up when pressing the movable contact to close the contacts, use a screwdriver to short-circuit the contacts. If the lights turn on, it indicates oxidation of the contacts. 3. If the turn signals do not light up when short-circuiting the two terminals of the flasher relay with a screwdriver, the issue may lie with the turn signal switch. During inspection, use a screwdriver to connect the power line of the turn signal switch to the left and right light line terminals separately. If the lights turn on, it indicates a fault in the turn signal switch, which should be removed for repair or replacement.
