Turn Signals Work Sometimes: How To Fix It in Easy Steps

Turn signals work sometimes can be a dangerous issue because they facilitate important on-road communication. When they begin to malfunction, though, it may be annoying.

Turn Signals Work Sometimes

Your safety and the safety of others might be jeopardized by problems such as one side of the turn signal not working, quick clicking, or even the turn signal not going off. We’ll cover typical turn signal issues in this step-by-step guide and offer workable fixes.

How To Fix Turn Signals That Only Work Sometimes?

To fix your turn signal works sometimes, you need to inspect the bulbs and sockets, check the fuse, evaluate the turn signal flasher, clean or replace bulb sockets, verify the signal switch, address dashboard indicator issues, and finally seek professional assistance if necessary.

  • Inspect the Bulbs and Sockets

One potential reason why your turn signals aren’t working properly is a broken bulb or socket. You must properly examine the bulbs and sockets to solve this problem. Turn off your car and turn on the turn signals to get started. Keep a close eye on how each turn signal operates.

Inspecting Car Bulbs and Sockets

It’s possible that a bad light bulb is at blame if you find that only one side of the turn signal is malfunctioning. Visually inspect the bulb for any indications of damage or a burned filament to establish if it is to blame. A burned-out filament means the bulb has to be replaced. Make sure the new bulb is the appropriate kind and wattage for your car.

Examine the sockets next after examining the bulbs. The electrical system is connected to the bulbs through the bulb sockets. Look for any obvious evidence of corrosion or damage, since these might interfere with the electrical connection.

Turn signal problems can be caused by corroded or oxidized bulb sockets that block the passage of power. It’s crucial to carefully clean the sockets if you see any oxidation or corrosion.

  • Check the Fuse

Find the fuse box in your car. Common placements are inside the engine or under the dashboard. When you’ve located the fuse box, open it up and look at the fuse for the turn signals. Usually, each fuse’s function is indicated on a label or in a diagram in the fuse box.

The fuse for the turn signal lights or flasher unit should be located. Visually inspect the fuse to look for any damage. The filament of a blown fuse may be fractured or seem discolored. Replace the fuse immediately if you think it could be defective.

Make sure you have the appropriate replacement fuse with the same amperage rating before changing the fuse. Using a fuse with the incorrect amperage might result in electrical problems or possibly harm the electrical system in your car. Remove the blown fuse from its position with caution after you have the proper replacement fuse.

Make sure the replacement fuse is firmly seated before inserting it into the designated slot. For the sake of maintaining a proper electrical connection, make sure the fuse is installed appropriately. It is advised to momentarily disconnect and then reconnect the vehicle’s battery after changing the fuse.
  • Evaluate the Turn Signal Flasher

A malfunctioning turn signal flasher might be to blame if your turn signals flash quickly or stop flashing entirely. The turn signal relay or flasher module, sometimes referred to as the turn signal flasher, controls the speed and operation of the turn signal lights. You must assess the turn signal relay to resolve this problem. Locate your car’s turn signal flasher to start.

Car Turn Signal Flasher

The actual placement of the flasher module may vary depending on the make and type of the car, but it is normally under the dashboard next to the steering wheel. For detailed instructions, consult the owner’s handbook for your car. Locate the flasher module and carefully remove it from the mounting bracket.

To reach it, you might need to remove a panel from the car or detach the flasher module. To guarantee correct reinstallation, take note of the precise connections and wires connected to the flasher module. Visually examine the flasher module while holding it to look for any obvious signs of damage such as burn marks, corrosion, or loose connections. Any of these faults might impair the flasher’s operation and lead to turn signal troubles.

  • Clean or Replace Bulb Sockets

Corrosion or oxidation in the light bulbs sockets can sabotage the electrical connection and cause turn signal issues. The bulb sockets need to be cleaned or replaced in order to solve these problems. The turn signal bulb sockets should first be carefully removed. Usually, the sockets are within the housing of the car or behind the turn signal lens.

To remove the socket from its location, either gently turn it counterclockwise or unhook the holding clip. After removing the bulb sockets, look for any obvious signs of oxidation, corrosion, or damage. Corrosion manifests as a greenish or yellowish material, whereas oxidation may show as a darkened or discolored surface. These accumulations might disrupt the electrical contact between the bulb and the socket.

The sockets can be cleaned if they exhibit symptoms of slight oxidation or corrosion. Spray an electrical contact cleaner into the sockets to ensure that all residue is gone. A tiny wire brush can also be used to gently scrape the interior of the sockets to remove any built-up corrosion. During this operation, take care not to harm the socket or the wire.

  • Verify the Signal Switch

When one turn signal fails to function while the others work perfectly, the turn signal switch may be to blame. Verifying the turn signal switch is a critical step in identifying and resolving this problem. To begin, turn off the vehicle’s battery for safety. During the verification procedure, no electrical current is allowed to travel through the system.

Car Signal Switch

The steering column cover should then be removed to give access to the turn signal switch assembly. Typically, the cover may be removed by removing screws or clips and following the directions in your vehicle’s handbook. After removing the steering column cover, visually check the signal switch assembly for evident damage or loose connections.

Look for any loose terminals, frayed or broken wires, wear and tear, or other indications. It is advised to replace the signal switch with a new one that is suitable for the make and model of your car if it looks to be broken or defective. Make sure you buy the right replacement switch from an authorized dealer or auto parts retailer.

Disconnect the wire harness attached to the old signal switch before installing the new switch. Install the new switch in its position after carefully removing the old one. Assure adequate alignment when tightening the switch’s mounting hardware and reconnecting the wiring harness.

  • Address Dashboard Indicator Issues

Locate your car’s fuse box first; it is often beneath the dashboard or in the engine bay. To find the fuse box precisely, consult the owner’s handbook for your car. Find the fuse box, open it, and look inside for the one that controls the turn signal indicators on the dashboard. Check for any fuses connected to the indicators that may be blown or broken.

Replace any blown fuses with new ones with the same amperage rating if you locate any. To prevent any electrical problems, make sure you have the appropriate replacement fuse. Test the turn signals after changing the fuse to ensure that the dashboard indicators are working properly. Activate the turn signals on both sides of the car and check to see whether the dashboard indicators are lighted and flashing in rhythm with the external turn signals.

If the indicators still do not function, the issue might be a defective indicator bulb or a wiring issue. Remove the dashboard panel and inspect the indicator bulbs. Examine for any evidence of damage or a burnt-out filament.

Replace any defective bulbs with appropriate replacements. If the lamps are working properly, check the electrical connections for any loose or broken wires.

  • Seek Professional Assistance

It might be required to seek expert assistance if you have tried the preceding methods and the turn signal problem is still not fixed. Professional assistance can offer knowledge and sophisticated diagnostic equipment to successfully locate and resolve complicated turn signal issues.

Seeking Professional Assistance

Professional vehicle mechanics are equipped with the knowledge and skills necessary to diagnose and fix complex electrical systems. They have cutting-edge diagnostic tools that can identify the precise reason for the malfunctioning turn signals. Find a trustworthy vehicle repair shop or service facility when you need expert help.

To find a reputable and trustworthy business, look for credentials, client testimonials, and recommendations. Give the vehicle repair company-specific information about the symptoms you have seen and the actions you have already done to solve the problem when you visit. This will speed up the diagnosis procedure and aid the professionals in understanding the issue.

Can a Faulty Shift Solenoid Affect the Functioning of Turn Signals?

Yes, a faulty shift solenoid in a Dodge Caravan can indeed affect the functioning of turn signals. The shift solenoid is responsible for controlling the shifting of gears in the transmission system. If it malfunctions, it can disrupt the overall electrical system, including the turn signal function. This further emphasizes the importance of addressing any dodge caravan shift solenoid issues promptly.


In conclusion, by referring to this guide on turn signal works sometimes, you can troubleshoot and resolve typical turn signal issues.

To summarize, the main takeaways from our discussion are:

  • Check the sockets and bulbs to make sure they are clean, corrosion-free, and in good working order.
  • Replace any blown fuses with ones with the same amperage rating after checking the fuse connected to the turn signals.
  • Look for damage or failure in the turn signal flasher, which is under the dashboard. Replace as required.
  • If a bulb socket exhibits corrosion or oxidation, clean it or replace it to re-establish a good electrical connection.
  • Check the signal switch for damage, and if necessary, replace it.

In order to preserve road safety, it is imperative to rectify turn signal malfunctions as soon as possible.

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