Where Is The Headlight Relay Switch?

Usually, it is

under the hood of the car

. The point where your fuse panel is most likely located. On the other hand, it may also be located inside the cab of the car, this would be the case if your car comes with an interior fuse box.

How do I know if my headlight relay is bad?

Headlights Don’t Turn

On

The most common sign of a bad headlight relay is headlights that don’t work. A headlight relay will typically fail in the open position, preventing voltage from reaching the headlights. If the low beam relay fails, the low beams won’t work.

How do you change a headlight relay?

1. Materials Needed.
2. Step 1: Locate the headlight closure relay. …
3. Step 2: Remove the fuse box cover or lid. …
4. Step 3: Remove the old relay. …
5. Step 4: Insert the new relay. …
6. Step 5: Test the headlights. …
7. Step 6: Reattach the fuse box cover.

Which relay is for the headlights?

Check in your vehicle’s owner’s manual for the location of the

headlight closure relay

. It will most likely be under the hood of your vehicle where your main fuse panel is located. However, it may be located inside the cab of the vehicle if you vehicle is equipped with an interior fuse box.

How do you check a headlight relay switch?

1. Turn on Your Lights. Turn on your lights. …
2. Listen for the Click. Open the hood, locate the fuse box with the headlight relay or relays, and open it. …
3. Replace the Relay. Have an assistant turn on the headlights. …
4. Multimeter Tests.

Can AutoZone test a relay?

A relay can be checked with a jump cable

, a voltimeter, an ohmimeter or a test light. If the terminals are accessible and the relay is not controlled by a computer, the fastest method will be a jump cable and a test light.

Does each headlight have its own relay?

Headlight Fuse or Relay

All the electrical systems in your car, including the headlights, are

protected with fuses

. … If a headlight fuse blows, it could cause the headlights to stop working. Most headlight systems are also designed with a relay that switches the power between low beam and high beam headlights.

How much does it cost to replace a headlight relay switch?

Headlight Dimmer Switch Replacement Cost – RepairPal Estimate. Labor costs are

estimated between $67 and $85

while parts are priced at $88. This range does not include taxes and fees, and does not factor in your specific vehicle or unique location.

Does one fuse control both headlights?

The first, and easiest, component to check is the headlight fuse. Depending on how your headlight circuit is set up,

there may be one fuse or multiple fuses for the headlights

. If you find a blown fuse, then replacing it may fix the problem. … You should find battery voltage on both sides of the fuse.

What does a headlight relay switch do?

When you turn on your headlights, that switch activates a relay. That relay, in turn, actually

provides the electrical connection between your headlight bulbs and the battery

. Fuses are also involved in order to provide a sacrificial failure point to protect the rest of the wiring.

Where is the fuse for headlights?

It is often located

in the power center in the engine compartment

, but may also be in the fuse panel under the dash. If the fuse has blown, replace it with a new fuse (same amp rating) and try again.

Why do my low beams not work but my high beams do?

Time for

New Headlights

Since the low beams are used the most, they tend to burn our much sooner than the high beams. If your low beams stop working but the high beams still turn on, there’s a good chance that simply replacing the headlight bulbs with new OEM headlights will solve the problem.

What does HDM relay stand for?

If you know how to replace the HDM which stands for

Headlamp Driver Module

, is # 46 in the fuse box compartment on left side of engine.

How do you check a headlight switch?

Turn the switch to the

parking lights setting

and observe the meter. You should see zero or no more than a few Ohms of resistance. Move the negative lead to the output wire for the headlight relay, then turn the switch to the headlights setting and check the meter.

How do you check headlight wires?

1. Unplug the light bulb electrical connector.
2. Turn on the headlights.
3. Connect your test light to a good ground and touch the test light probe to the power side of the connector terminal.