Midyear A/C wiring question

[Brandon K.]

Hi All,

I'm in the process of hooking up the dash wiring on my 67 small block w a/c. I have a question about the fan switch wiring that I'm hoping someone can answer:

The brown wires to the fan switch (part of the heater system) plugs into another brown wire from the a/c harness. On the wire from the a/c harness there is a "hookup" for an extra wire, but I cant find anything that seems to belong there. I studied the wiring schematics, but have come up empty. I just want to confirm that nothing else is supposed to plug in there, or if there is, can someone please specify what that is?

btw, these are repro wiring harnesses, if that makes a difference... unfortunately I no longer have the originals :-(

THANKS!
Brandon

[William C.]

Re: Midyear A/C wiring question

What color is the wire you are trying to find a home for?

[Brandon K.]

Re: Midyear A/C wiring question

What color is the wire you are trying to find a home for?

Hi Bill, Thanks for your response.

Its not that there is an extra wire, that I'm trying to find a home for, its that there is an extra inline terminal on the brown wire from the a/c harness (that attaches to the wiring going to the fan switch). Its possible that nothing else is supposed to attach to the brown wires-- or that this extra terminal is for another accessory, but I can't imagine what...

Thanks again,
Brandon

[Larry M.]

Re: Midyear A/C wiring question

Brandon:

I believe this same question came up recently on the other corvette forum. The reply(s) was that it was not used for the factory air cars, but was used for standard HVAC. I will try to find the post and provide you more info later today or tomorrow (if needed).

Or you can search the C2 Section of CF yourself under postings by "62jeff". As I recall, there were a number of color photos included of the wiring and various connectors.

Larry

[Peter L.]

Re: Midyear A/C wiring question

Brandon - If I'm looking at the right thing in the 1967 AIM, UPC C60, SHEET E9, it looks like the brown wire to the switch has a pigtail with a connector that should have a brown wire from the Fuse Panel connected to it. The brown wire from the Fuse Panel is part of the REG PRODUCTION WIRING (dashed line). Pete

[William C.]

Re: Midyear A/C wiring question

Pete, you and I are reading it the same way.

[Brandon K.]

Re: Midyear A/C wiring question

Gentlemen, thank you for your responses and sorry for the confusion on this.

there are two brown wires to the back of the switch. One is from the production harness (I assume thats the one that goes to the fusebox) and the other terminates about 6 inches away in a female connector. There is a brown wire in the a/c harness which I assume is from the switch on the evap box. That wire terminates in a double connector- one side fits into the female to the switch, but that leaves one (a shielded male) bare. Just wanting to make sure that this is proper.

Larry: I looked on "the other" website and found a question about wiring in a '64-- Is that what you were referring to? If not, I'd really appreciate if you would find the proper thread for me.

Thanks again,
Brandon

[William C.]

Re: Midyear A/C wiring question

The wire from the production harness (runs to the fuseblock) is the one that should plug into your open connector. I'm looking at a '67 C-60 AIM, and it's on page E-8 in the C60 section.

[Bill C.]

Re: Midyear A/C wiring question

On my 67 air car the red wire to the horn relay is not in the harness but instead is exposed with the fuse block to the relay with a fuse holder in line.........................didn't mean to confuse the issue but jumped into the wiring discussion anyhow....................Bill #20328

[Brandon K.]

Re: Midyear A/C wiring question

Hi Bill, Thanks I couldnt find that detail in the AIM, but I'll look again.

Regards,
Brandon

[Brandon K.]

Re: Midyear A/C wiring question

Hi Bill (Carpenter). Yes, thanks. I was referring to the inside dash wiring. I have the same red wire in the engine compartment, but I appreciate the response all the same.

Brandon

[Peter L.]

Re: Midyear A/C wiring question

Bill - That is exactly what I'd expect to see on the 67 C60 wiring. Pete

[Brandon K.]

Re: Midyear A/C wiring question

The wire from the production harness (runs to the fuseblock) is the one that should plug into your open connector. I'm looking at a '67 C-60 AIM, and it's on page E-8 in the C60 section.

Thanks for pointing this page out Bill. Now it looks familiar ... I remember looking at this a couple years ago when I originally installed the wiring. Now I just need to figure out if I did it correctly ;-)

BK