Headlight gremlins Options

[john77]

My headlights have decided to randomly turn themselves on and off as I drive, which is a lot of fun at night on the I405 as drivers think some obnoxious d*ck is flashing them.

I cleaned up the grounds and all the ground wire connectors by both headlights but it’s still happening.

Could this be relay connected, or are they more a once dead completely dead kind of deal?

I thought i’d ask before I drop $20 on a new one.

For the record, I have those sealed GE led headlights, and it’s happening simultaneously to both, so I know it’s not the bulbs.

[SirAndy]

Could this be relay connected, or are they more a once dead completely dead kind of deal?

No and neither. There's no relay for the headlight power, the relays next to the headlights are for the motors that move them up/down.

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[john77]

Could this be relay connected, or are they more a once dead completely dead kind of deal?

No and neither. There's no relay for the headlight power, the relays next to the headlights are for the motors that move them up/down.

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I know the relays next the the headlights are for the motors. I meant the how/low beam relay under the dash. If it was faulty couldn’t it still stop the power to the headlights?

[Costa05]

Could this be relay connected, or are they more a once dead completely dead kind of deal?

No and neither. There's no relay for the headlight power, the relays next to the headlights are for the motors that move them up/down.

(IMG:style_emoticons/default/shades.gif)

I know the relays next the the headlights are for the motors. I meant the how/low beam relay under the dash. If it was faulty couldn’t it still stop the power to the headlights?

Coincidentally I was just looking at the wiring diagram for the high/low beam relay under dash on my 73. Yes that relay is fed off the dash switch. Its a two position relay. The "at rest" position feeds low beams. When the relay is activated it jumps over to the high beam side. Both sides of the relay then run through your fuse panel. Fuses 1 through 4. Then goes to headlights. Lt Rt low beams....Lt Rt high beams positive wires. The relay is cheap if you want to replace it. Can be bench tested but replicating could be tough. Worth cleaning all five spade connectors first and take it for another drive. Mine were pretty corroded.