Fast Turn Signals And Flickering Dash And Headlights

fast turn signals

It would be nice if we could have our cars talk to us when something is wrong, right? Well, this is made possible with the dashboard. The dash is the system that communicates problems in the vehicle for you. 

From oxidized headlights to fast turn signals, flickering dash, and headlights, the dash hints at any failing components. The dashboard contains light that will flicker is their issues relating to low wiper fluids, low oil pressure, engine, and so on.

Below is a breakdown of flickering car lights and signals.

What Are Flickering Car Lights?

Even if the dashboard signals a problem, it’s sometimes hard to tell when it lights up, flickers, or dims. When you have flickering car light, it sometimes means that there might be a problem with your car. A flickering car light could signify that an alternator is required for your vehicle or you need a starter replacement.

Flickering car lights can lead to electric failure in your vehicle if you don’t pay attention to it. Battery failure could also cause your car lights to flicker. 

If this is the reason, you should attend to it immediately; this will save you unnecessary expenses and make your car serve you for a very long time. If the lights keep flickering and nothing is done about it, the situation could worsen. The result is a compromise of your vehicle’s internal components.

Why Does My Turn Signal Blink Fast?

There is a range of reasons your turn signal can start to blink fast. There are primary suspects as well as secondary ones. The turn signal signifies the direction by blinking the headlights; drivers use it to inform other drivers on the road of the intended turn. 

  • Failing Bulb

Another reason your car’s turn signals will start to blink faster than usual is when the bulb fails. This happens at the headlamp region. You’ll observe a broken or damaged bulb before this can happen. The problem begins with the resistance switches that often flash the bulb’s light repeatedly and speedily. This is an abnormal condition for the switches. When your turn signal is blinking fast, it is usually an indicator of a bulb is faulty. 

Each turn signal has a flashing unit that pauses the circuit. The circuit creates the blinking action for the rear and front turn signal bulb. These signals function at a particular resistance, and if the bulbs fail, the resistance changes by blinking faster. 

However, if the turn signals flash but the bulbs are not out, there may be a problem with the loose screws; otherwise, it may be with the ground connection or lack of sufficient voltage.

Let’s check out each of the other causes.

  • Improper or insufficient Voltage supply

One other reason your turn signal can blink fast is the lack of adequate voltage to the car. Every car has a certain amount of voltage it should receive. However, the voltameter can supply a reduced, insufficient, or improper amount of voltage to the car. This will cause the indicator to blink fast. You can also trace this problem to the bad condition of the switch combos.

  • Damaged Condition of ground Connection

There is another big issue that can cause your turn signal to blink faster than normal. The ground connections may be in bad shape. Here, you’ll notice that the ground connection causes the combo switches to become dirty and untidy. 

  • Loose Screws

You should also check if the screws installed on the turn signals are not tight enough. Loose screws can make the signal turn not to operate at a normal condition. If there are any loose screws, there’s a high possibility that the turn signal will blink fast. 

Why Do Interior Lights Go Dim?

Interior lights mostly go dim when there is an electrical issue in the vehicle; it could be the voltage regulator or the battery. Another cause of dimming interior lights is the alternator; you can find out which of them is the culprit by testing the battery’s voltage.

If you get a low reading, then there is a high chance that the alternator is the cause. If it is, have it taken care of immediately to avoid it weakening your battery.

However, you can get a technician to take a look. If the alternator is in stellar condition, then it might be a problem with the battery. If it is, have the battery replaced before it causes major damage to your vehicle. Also, check the ground wires to be sure; loose wires can cause dimming interior lights in a vehicle.

Why Are the Dashboard Lights Flickering?

The alternator is an important electrical component in the vehicle; it works to keep the battery charged as you take a ride. Although it doesn’t require so much attention, there is a need to take note when it begins to wear. 

When the dashboard lights are flickering, then there’s a problem with the alternator. You can also notice that the battery is unable to keep a charge or is making strange sounds.

The alternator is usually the major cause of flickering dashboard lights; sometimes a blown fuse, a loose belt, or even the starter might be the reason why lights are flickering.

The starter helps the engine create that spark needed to start; and if it fails, then the dashboard lights will begin to flicker. Another sign will be no crank or freewheeling and a slow turnover.

Freewheeling is when the starter produces a long, whining sound when it should engage the flywheel. These problems are usually mistaken for the alternator, and only a professional can tell the difference between them.

Final Thoughts

Flickering lights tell a story. It’s important that you pay attention so as to be able to understand what your vehicle is communicating to you. When the dashboard lights flicker, interior lights dim or the turn signal blinks fast; at this point, your vehicle might be communicating a problem; pay attention to it before it causes major damage to your vehicle.