78 Firebird tail light harness wires identification
 

I'm installing a used factory taillight harness in my 78 to replace the wiring mess back there to get the rear lights working for the first time in many many years.

The car is a race car that I'm trying to make a little streetable.

This is the harness end of the new harness I'm installing. I know:

Yellow: left signals
dark green: right signals
light green: reverse lights

What I don't know is

pink wire? Perhaps trunk release???

brown wire: Is it tail light, or brake light? What wire for the one missing/ to the brake light switch?

THANK YOU!!

Do you have a wiring diagram?
Fuel sender.

Signal wires double as brake light wires. Those come from the turn signal switch in the column. Pink is fuel sender as mentioned and brown is parking light circuit.

Not yet

Thank you!! That helps a lot as I have a universal turn signal switch/arm for the race car steering column. Now I just need a flasher and a couple of hours...

Check your PM, will send you a copy of diagram.

You got the email?