How do you install a headlight relay?

Part 1 of 1: Replacing the headlight closure relay

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

How to build a headlight wiring relay kit?

First study the 3 diagrams that you will use as your guide on how you want to built your wiring.. 1.measure the lenght of the wire you need from the stock wiring going to the left to right if your battery is in the right then your wiring should start in right headlamp going to left ..

How do you install a toggle switch on a headlight?

Drill hole in headlight assembly, splice toggle switch wire into hot wire for low beam of headlight, push toggle switch up though hole and secure with nut. If you want to be sure that this is your problem, before you install toggle switch, open up headlight assembly and just unplug the plug going into headlight.

Where does the fuse go on a headlight relay?

The two headlamps are connected together, as normal, and taken to Pin 87 of the relay. Pin 85 goes to ground while Pin 30 goes to the new 30A fuse. If you wish to, a separate wire from the fuse can be used for each relay and can be colour- coded the same as the corresponding headlamp wire. This is what I did.

Why are my headlight relays hot under the dash?

As the wiring harness ages, corrosion can also “thin out” the wire resulting in hot spots. If you install a new thicker wire in your car, you can connect it to the relay. This will solve the heat problem at the connector under the dash as the connector will only see the current needed to operate the relay.

How to connect a headlight switch to a low beam relay?

1 Attach the high beam circuit feed from the headlight switch to the 86 terminal on the high beam relay. 2 Attach the low beam circuit feed from the headlight switch to the 86 terminal on the low beam relay. 3 Attach the new high power feed wire to the 30 terminal on both relays. 4 Attach the 85 terminals to the new ground source.

How to wire a headlight relay on YouTube?

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How does a headlight relay work on a jeep?

A standard relay is turned on by a small amount of current that actuates a magnetic switch and only draws minimal power. The other side of the magnetic switch is another switch that can carry a larger amount of current. In this case the Jeep’s headlight switch turns on the relay which in turn turns on the headlights.