Why is only one turn signal working?
Turn signals are a critical safety feature in your vehicle, ensuring that other drivers are aware of your intentions on the road. If you find that only one of your turn signals is working, it can be both frustrating and dangerous. At Kevin's Autos, with years of experience in car maintenance and repair, we’ve seen this issue many times. Below, we’ll explore the common causes and solutions for this problem.
Common Causes of a Malfunctioning Turn Signal
When only one turn signal is working, the issue could stem from a variety of sources. Here are the most common reasons:
- Burned-Out Bulb: The most frequent cause is a burned-out bulb on the side that isn’t working. Turn signal bulbs have a limited lifespan and will eventually need replacement.
- Faulty Wiring: Damaged or corroded wiring can disrupt the electrical connection to the turn signal, causing it to fail.
- Blown Fuse: Each side of your vehicle’s turn signals may have its own fuse. If the fuse for one side blows, that side’s turn signal will stop working.
- Bad Turn Signal Switch: The turn signal switch inside your steering column could be malfunctioning, preventing the signal from activating properly.
- Flasher Relay Issues: The flasher relay controls the blinking of your turn signals. If it’s defective, it might only work for one side.
How to Diagnose the Problem
Before heading to the repair shop, you can perform a few simple checks to narrow down the issue:
- Inspect the turn signal bulb on the non-working side. If it appears dark or broken, it likely needs replacement.
- Check your vehicle’s fuse box for a blown fuse. Refer to your owner’s manual to locate the correct fuse for the turn signals.
- Look for visible damage or corrosion in the wiring near the turn signal assembly.
- Test the hazard lights. If both sides blink when hazards are activated, the issue might be with the turn signal switch or relay.
Solutions to Fix the Issue
Once you’ve identified the likely cause, here’s how you can address it:
- Replace the Bulb: If the bulb is burned out, replace it with a new one. Be sure to use the correct type of bulb for your vehicle.
- Repair Wiring: Damaged wiring should be repaired or replaced by a professional to ensure a safe and reliable fix.
- Replace the Fuse: If a fuse is blown, replace it with one of the same amperage. Avoid using a higher-rated fuse, as this can cause electrical damage.
- Check the Relay: If the flasher relay is faulty, it will need to be replaced. This is typically a straightforward repair.
- Consult a Professional: If the issue lies with the turn signal switch or if you’re unable to diagnose the problem, it’s best to bring your vehicle to a trusted auto repair shop like Kevin’s Autos for a thorough inspection.
Preventing Future Turn Signal Issues
To avoid turn signal problems in the future, consider these maintenance tips:
- Regularly inspect your vehicle’s lights and replace bulbs as needed.
- Keep your electrical system in good condition by addressing any signs of corrosion or damage promptly.
- Schedule routine maintenance with a trusted auto repair shop to catch potential issues early.
Conclusion
A malfunctioning turn signal is not only inconvenient but also a safety hazard. By understanding the common causes and solutions, you can address the issue quickly and get back on the road safely. If you’re unsure about diagnosing or fixing the problem yourself, don’t hesitate to visit Kevin’s Autos. Our experienced technicians are here to help with all your car maintenance and repair needs.
Frequently Asked Questions
Is it illegal to drive with a broken blinker?
Headlights, tail lights, and blinkers
Not only can driving without them be dangerous, having non-functional lights is illegal in almost every state. Driving without them could lead to getting pulled over and receiving a ticket.
How much does it cost to fix a left turn signal?
$80-$110. The average cost to replace your turn signal bulb is $80 - $110. Pricing may vary based on the type of car you have, as well as the type of (and quality) auto shop that you go to. At NuBrakes, our technicians come to your office or home to do the repair.
How much does it cost to fix a broken blinker?
The average cost to replace your turn signal bulb is $80 - $110. Pricing may vary based on the type of car you have, as well as the type of (and quality) auto shop that you go to. At NuBrakes, our technicians come to your office or home to do the repair.
How can you tell if a signal switch is bad?
Common symptoms of a bad turn signal switch include:
- Turn signal lamps don't work at all.
- Only one side of the turn signal lights is working.
- Other car systems don't function properly or at all.
Can I drive if my blinker is not working?
Because, driving without functional turn signals is unsafe and illegal in most places. And Tracy's Tire Pros professionals can diagnose and fix the issue, ensuring your turn signals work properly again.
Does each turn signal have a fuse?
No there is not a separate fuse for each turn signal.
Why won't my left turn signal work?
Burnt-out bulbs are the most frequent issue, but electrical problems like blown fuses, faulty wiring, and corroded connectors are also common. Additionally, a malfunctioning flasher relay can cause the signals to blink erratically or not at all.
Why is my turn signal only working on one side?
The most common cause of this problem is a failed turn signal bulb (or loose connection). Flasher relays depend on a certain amount of current flowing through the circuit. If a bulb fails, it results in less current, which results in it not blinking. Some cars have one blinker in front and one in back on each side.
How do I know if my turn signal fuse is bad?
Turn Signals Don't Work
This is the most common symptom of a faulty turn signal relay. Once the relay is broken, the lights won't turn on with the switch. On some vehicles, the hazard lights also rely on the turn signal relay, so those lights might also cease to function.
How do I know if my turn signal relay is bad?
Turn Signals Don't Work
This is the most common symptom of a faulty turn signal relay. Once the relay is broken, the lights won't turn on with the switch. On some vehicles, the hazard lights also rely on the turn signal relay, so those lights might also cease to function.
