Relay High Beam Low Beam Wiring Diagram

Left to right the horn low beam and high beam relays on my 1975 bmw 2002.

Relay high beam low beam wiring diagram.

In this video i show you how to wire high and low beam lights for your custom hot rod dune buggy side by side atv or anything else you would like high and. Anxingo dual high low beam headlight relay wiring harness h4 9003 with high heat ceramic plugs. The original wires going to the low beams and to the high beams each split so they can feed both sides of the car. There was no change indicating that the problem was not in the relay.

Following the above diagram relays. Use the existing high and low beam wires coming from the firewall to trigger the relay run a new high power feed with a fuse direct from the battery and hookup the existing high and. In this car there are three identical relays sitting next to each other high beam low beam and horn. Download a wiring diagram of your car to be sure.

I swapped the low and high beam relays. You need to connect. If you have two headlight relays you can choose either one. The larger blue white wire from one relay goes to the high beams.

High low beam relay wiring february 16 2019 by arfan leave a comment wiring plow lights hi low beam with relays plowsite dual high low beam headlight relay wiring harness h4 dual high low beam headlight relay wiring harness h4 low beam relay not functioning the 1947 12v headlight relay wiring diagram automotive schematic. You splice two 20a relays into the existing wiring harness right out near the headlights so one relay controls the low beams and one controls the high beams. When the coil of the relay is energized 12v from the high beam switch to terminal 86 ground on terminal 85 the. Fog lights off with high beams on.

Look into the connector end of the wiring harness. The larger blue red wire from the other relay goes to the low beams. Love the product and have the option of high wattage bulbs. Refer to your vehicles wiring diagram and determine the color of wire and pin number of the power supply wire for your existing high beam headlights.

Attach the new high power feed wire to the 30 terminal on both. 56b is the low beam feed. Attach the low beam circuit feed from the headlight switch to the 86 terminal on the low beam relay. So low beam at top tan in my case high beam green in my case to blue and black ground to black.

Attach the high beam circuit feed from the headlight switch to the 86 terminal on the high beam relay. Power 12v to the fogs lights passes through the normally closed contacts of the relay terminals 30 and 87a.