Outer Limits 4x4 Board

hey guys

i've got a 75 series diesel and the other day on the way to work the headlights started flashing really fast and eventually went out and ever since when i turn the on they flash reaslly fast and i've replaced the relay, high low beam contacts and the headlight stalk also the parkers work fine. any ideas.

crappy earth somewhere on the trigger side of the relay such that when it triggers, the voltage drops enough to drop below the trigger threshold, which means the voltage increases, so it triggers, so the voltage decreases, so it releases and so on.

Go through the wiring looking at crappy connectors and shite earths.

fusable link?