I have two blue wire coming out of the dash harness, both with in-line fuses. Both test cold with ignition off or ignition on. (Yes, the fuses are good and I tested behind the fuse too.) What are these wires for???

Car is a 10/70 build date

Edited July 16, 201113 yr by coopdog240

year & model?

Where in the dash harness are they?

Edit: Nevermind. Put in the fuse for accessories (marked Common on your MSA fuse box), and you will probably have voltage.

Edited July 16, 201113 yr by SteveJ

I'm trying to recall, it's been a while, but I THINK they are associated with the door and seatbelt buzzer. Does the car buzz with key in & door open and/ or seat belt off and car in gear?

I'm trying to recall, it's been a while, but I THINK they are associated with the door and seatbelt buzzer. Does the car buzz with key in & door open and/ or seat belt off and car in gear?

I am nearly certain that the seat belt buzzer requirement in the U.S. didn't start until the 1972 model year. My '71 doesn't have any wiring for that "accessory".

FYI, here is another post from the OP. Considering he didn't have the accessory fuse in, I would say the dead wires are most likely energized through the accessory fuse.

Those look like the Heater Blower motor power wire and the Cigarette lighter wire. Just a guess.

Dave

I am nearly certain that the seat belt buzzer requirement in the U.S. didn't start until the 1972 model year. My '71 doesn't have any wiring for that "accessory".

That explains why I can find neither the buzzer or wires in my FSM DIAGRAMS FOR MY 73.

You will however find the red and black ignition wires and a small buzzer up in the dash with door pin wiring also going to it. Or at least you should.

Dave

You will however find the red and black ignition wires and a small buzzer up in the dash with door pin wiring also going to it. Or at least you should.

Dave

Yea, I see the door pin wiring, shown as black. I do not see the buzzer, the transmission switch (which buzzes when in gear if the lap belt is not worn) or the seatbelt switch. All of which are blue or green on my 73.

And after that, they ran the same wiring into the 260Z's "Interlock" system. A system truly worthy of my Garbage can.....

If you put a gallon of milk in the passenger side seat, you had to buckle the seat belt to start the car.

Gotta love pressure switches.

Dave

I put the accessory fuse in and I found the blue and white whire going from the fuse block subharnes which goes to the blue and white wire powering the cigarette lighter. The lighter works. However, still no clue about the two heavy blue wires with the in-line fuses.