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.

[Spoke]

Here's the circuit for a '74 914. Likely the '73 is similar if not identical. If both headlights are turning on/off then as others said is likely the switch.

[john77]

Here's the circuit for a '74 914. Likely the '73 is similar if not identical. If both headlights are turning on/off then as others said is likely the switch.

Oh, this is great, thanks man.

My fog lights aren’t working either, but that’s another story...

I fitted the Jwest harness a couple of years back so I could use my fogs as driving lights.

About 12 months later I got a pair of the GE nighthawk headlights and every time I switched on my fogs the headlight motors would start doing weird shit opening and closing even though my headlights weren’t switched on.

I ended up disconnecting the jwest harness but I’d still like to reroute fogs so I can turn them on without having to turn on my headlights.