Where is the blinker relay located?

The blinker relay, also known as the turn signal relay, is a crucial component in a vehicle's electrical system that controls the operation of the turn signals. Its location can vary depending on the make and model of the car, but it is typically found in one of a few common locations.

Common Locations of the Blinker Relay

• Under the Dashboard: The blinker relay is often located under the dashboard, near the steering column or fuse box. This is a common placement as it keeps the relay close to the turn signal switches and other related components.


• In the Engine Bay: Another common location for the blinker relay is in the engine bay, usually mounted on the firewall or near the fuse box. This placement keeps the relay close to the turn signal lights and their wiring.


• In the Fuse Box: Some vehicles have the blinker relay integrated into the fuse box, either in the engine bay or under the dashboard. This consolidates the relay and fuses in a single location.

To locate the blinker relay in your specific vehicle, it's best to consult your owner's manual or do a visual inspection of the areas mentioned above. The relay is typically a small, rectangular component with multiple wires connected to it.

Importance of the Blinker Relay

The blinker relay plays a crucial role in the proper functioning of a vehicle's turn signals. It receives a signal from the turn signal switch and then distributes power to the turn signal lights, causing them to blink at the correct interval. If the blinker relay fails, the turn signals may not work correctly or may not work at all, which can be a safety hazard for both the driver and other motorists on the road.

Knowing the location of the blinker relay can be helpful when troubleshooting turn signal issues or replacing a faulty relay. By understanding where this component is located, you can more easily access and inspect it as part of the diagnostic process.

How much does it cost to replace a flasher relay?

A flasher relay replacement typically costs between $60 and $120 at a professional mechanic, with the part costing around $30-$60 and the rest going to labor. DIY replacement is cheaper, with the part alone costing about $15-$60, though it can be higher depending on the part and vehicle. 
This video explains how to replace the flasher relay and provides an estimate of the cost: 1mMaxTheCarGuyYouTube · Jul 17, 2024
Cost breakdown

• Parts cost: $15–$60 for the relay itself. Some high-quality or specific OEM parts may cost more, while aftermarket options can be as low as $15. 
• Labor cost: Approximately $30-$60 when performed by a mechanic, but this can vary depending on your vehicle and location. 
• Total cost:
  • DIY: The cost of the part only, around $15–$60. 
  • Professional: A total of $60–$120, including parts and labor. 

Factors that influence the cost

• Vehicle: The specific make and model of your car can affect the cost of the part and the complexity of the labor. 
• Part quality: The price of the relay will vary depending on if it's an OEM (original equipment manufacturer) or an aftermarket part. 
• Labor rates: The hourly rate charged by the mechanic in your area will influence the final price. 
• Complexity: Some vehicles may require significant disassembly of the dashboard, increasing labor time and cost. 

How to save money

• Do it yourself: Replacing the flasher relay is often a straightforward DIY task that can save you labor costs. 
• Shop for parts: Compare prices for aftermarket or generic relays from different retailers before buying. 
• Get multiple quotes: If you're having a shop do the work, get estimates from a few different mechanics to compare labor costs.

How do I know if my blinker relay is bad?

A bad turn signal relay is indicated by the turn signals or hazard lights not working, blinking erratically (often twice as fast), or a lack of the normal clicking sound. Other symptoms include a solid light (without blinking) when a bulb is burnt out, or a buzzing sound instead of a click. Before assuming the relay is the problem, first check for simple issues like a blown fuse or burned-out bulb.
 
This video demonstrates how to diagnose a bad flasher relay: 42sBungas Custom BikesYouTube · Dec 24, 2023
Common signs of a bad relay

• No blinking: The turn signals do not turn on at all, even though you hear no clicking from the relay. 
• No clicking sound: The usual rhythmic clicking sound that indicates the relay is working is absent. 
• Erratic or rapid blinking: The signals blink much faster than normal. This is often a sign that a bulb has burned out, but it can also be a symptom of a failing relay. 
• Solid light: The turn signal light on the dashboard stays on without blinking. This is almost always due to a burned-out bulb, but it points to a problem with the circuit that the relay controls. 
• Buzzing sound: A relay may make a continuous buzzing or humming sound instead of the normal clicking noise. 
• Both turn signals and hazard lights don't work: A failed relay can cause both the turn signals and the hazard lights to stop functioning. 

How to diagnose

1. Check for blown fuses: Locate your vehicle's fuse box and check the fuse labeled for the turn signals. If it's blown, replace it. This is a simple and quick fix. 
2. Check for burned-out bulbs: Inspect all four turn signal bulbs (front and back) to see if any are burnt out. A burnt-out bulb is a very common reason for rapid flashing or a solid light. 
3. Check wiring: Look for any loose, corroded, or damaged wiring connections, especially around the steering column and the fuse box. 
4. Swap the relay (if possible): If your car has two identical relays, one for the turn signals and one for the hazard lights, you can swap them. If the turn signals work after the swap and the hazard lights stop working, you've found a bad relay. Make sure they are the same type before swapping them. 

This video explains how to test a turn signal flasher relay: 50sJM Auto RepairYouTube · Mar 25, 2024

What does a blinker relay look like?

And it's actually making and breaking the connection. And that's what's making the ticking noise under your dashboard. Pretty cool right.

Do turn signals have a relay?

Turn signal relay – The relay controls the blinking rhythm on certain models, especially older ones. If it's faulty, you might hear strange clicking sounds or have they don't flash. Replacing the relay is inexpensive and usually easy.