What does that wire doooo!

i'm having fits. the '67s brake lights/running rears are not functioning. well, not entirely. i was getting voltage through the left brake light even when the van was off. i sourced that to a missing return spring on the brake lever, it wasn't fully engaging the switch when i let off the brake. so that tiny little glimmer of light that gave me such a headache has now been extinguished.

now to the part that's baffling me.

in the left rear corner (right on the 69?), below the light housings, through the floorboard is a wire. dirt and grime have long since robbed it of any identifiable color. i've looked through the color diagram (i printed and laminated a copy from the forum) but can't find where this mystery wire goes, and whether or not its supposed to have power? has anyone got any advice for me? i'd really appreciate any help at all!

i came, i read, i understand.

my rear lights still won't work, but now the gas gauge surely does! thanks donivan! now i need to figure out how to cut power to my dome lights. they're long gone, and the orange and white wires look hella crispy. could this be why my lights aren't cooperating? or maybe just a bad headlight switch?

me, the laptop, and my dikes are inside the van right now on the prowl. thank god for wireless internet. i'd be lost without vintAGE vans!

well, aside from the blinker issue (column woes) all the lights are functional. the charred orange and white remnants are stripped out and i pulled the white pin from the rear of my headlight switch. problem solved. no more fuses boiling and no strange irregularities to speak of... and i'm sure if a factory dome light is called for somewhere along the line, i can just re-pin the switch with a fresh ground.

Good job! Donivan is always a great help, like having a living shop manual or virtual mechanic!

Later,
Rip

grr, to continue my wiring woes, the only light not functioning on the van is my pass. front marker. it gets very low voltage. barely enough to show up on my test light. i've traced the purple lead directly up to... my harness column!

what're the chances that since the signal lever is long gone, that the plastic assembly inside the column is stuck in such a manner its messing with my right light? and is there anything that'll work for that piece besides a van signal? i got the one out of the parts van, its cracked also. but LESS cracked.