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 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.
Can you upgrade the headlight circuit on a Jeep Cherokee?
This is a rather simple conversion with drastic results. Upgrading your Jeep’s headlight circuit is a rather straight forward process and can provide that much needed nighttime light without the addition of expensive driving lights or replacement headlights.
Where are the relays on a car Grill?
Find the two circuits that go to the headlights. One high beam one low beam, these will become the relay triggers. Select a good location for the two relays. I chose the back side on the drivers of the grill, the factory CJ wires run right through this area and it seemed out of the way.
Where are the low beam and high beam relays?
There is however also a single lowbeam relay, which gets its signal from the body control module. So have a look at this relay first. You could swap the low beam and high beam relay to be sure that the problem is the relay. Both relays are on the junction block, above the fuse box.
What is the ignition switch on a Jeep Cherokee?
Ignition Switch – Back-up Lamps, A/C Relay Coil, Shift Selector, Speed Control, Aux. Cooling Fan Relay Coil WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.
What are the lights on a Jeep XJ?
Dome Light, Courtesy Lights, Glove Box Light, Cargo Light, Radio Memory, Power Mirrors, Teltak Connector Engine Control (ECU) – Fuel Pump, Injectors, Ignition Coil, Oxygen Sensors, Generator Field, Engine Controller Automatic Transmission Controller (ATCU)
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.
Where does the control come from for a headlight relay?
This run to the battery is typically much longer then the run from the relay to the headlights so it’s gauge must be thicker. Again the thicker the wire the better. The control for the relays can come from the existing headlight wires, one for high beams and one for low beams.
How can I tell if my headlight relay is failing?
Symptoms of a failing relay include headlights that fail to open or close and possibly intermittent functioning of the headlight motors. Step 1: Locate the headlight closure relay. Check in your vehicle’s owner’s manual for the location of the headlight closure relay.
How to wire a headlight relay on YouTube?
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