1972 instrument cluster wire diagram
Thread Starter
Racer
Joined: Aug 2017
Posts: 352
Likes: 47
From: Bham, Alabama
1972 instrument cluster wire diagram
I replaced my oil pressure line this weekend and found a bulb that wasn't attached to anything behind the instrument gauges cluster. I tried looking in the AIM, but no luck. The bulb has a green wire and a pink wire. When I turned on the interior lights, it didn't come on. There were not missing bulbs (that I noticed) in the panel. Does anyone know what the green and pink bulb goes too?
Thanks
Keith
Thanks
Keith
Race Director
Joined: Apr 2011
Posts: 11,183
Likes: 3,335
From: North of Toronto - Ontario
IIRC the door ajar might have been pink as well as the seatbelt warning, don't recall much that was green though, any chance its light blue?
Headlight warning was dark green (striped?) but not with a pink...
I can check my diagram when I get home
M
Headlight warning was dark green (striped?) but not with a pink...
I can check my diagram when I get home
M
Thread Starter
Racer
Joined: Aug 2017
Posts: 352
Likes: 47
From: Bham, Alabama
It is definitely pink wire and green wire. I just remembered the PO replaced the wiring harness. So, there is a chance the colors are off. Hmmm
Also, there is a bulb in every spot on the small instrument cluster. I have no lights in the center console for the shifter or a/c controls. Could it go there?
Keith
Also, there is a bulb in every spot on the small instrument cluster. I have no lights in the center console for the shifter or a/c controls. Could it go there?
Keith
Last edited by Hig116; Oct 26, 2020 at 11:12 AM.
Thread Starter
Racer
Joined: Aug 2017
Posts: 352
Likes: 47
From: Bham, Alabama
I don't have either of these in the shifter. Now I'm wondering if the right wiring harness was used. Everything else seems to work.
So, assume the harness could be from another year. Pink and Green wires.
Mystery!
Keith
So, assume the harness could be from another year. Pink and Green wires.
Mystery!
Keith
Last edited by Hig116; Oct 26, 2020 at 01:23 PM.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Every 2027 Corvette Engine Explained
Joe Kucinski
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette
Verdad Gallardo
10 Ugly Corvettes That We Still Kinda Love
Joe Kucinski
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Old Fart Pilot
Joined: Apr 2010
Posts: 1,929
Likes: 1,001
From: Spokane, WA
In the '70 & '71 diagrams I have, the only lamps in the cabin with 2 wires are:
Courtesy - OR & W
Heater - B & GY
Door Ajar - P & LBL
Headlights Door - W/DG/DBL & LBL
Park Brake - P & T
Glove Cmprtmt - B/OR & B
I don't see anything with a green & pink (then again this is not for a "72)
2 quick silly questions:
1) Was the lamp ground OK when you tried to test it?
2) Has your color vision been checked lately?
Paul
Courtesy - OR & W
Heater - B & GY
Door Ajar - P & LBL
Headlights Door - W/DG/DBL & LBL
Park Brake - P & T
Glove Cmprtmt - B/OR & B
I don't see anything with a green & pink (then again this is not for a "72)
2 quick silly questions:
1) Was the lamp ground OK when you tried to test it?
2) Has your color vision been checked lately?
Paul
Race Director
Joined: Apr 2011
Posts: 11,183
Likes: 3,335
From: North of Toronto - Ontario
On the 72, the only green (light green) to a light is for the hi-beam indicator, single wire, case is grounded
Pink is on Door Ajar with a light blue and parking brake light with a Tan
Maybe the harness is from a later year or a "universal" one
M
Pink is on Door Ajar with a light blue and parking brake light with a Tan
Maybe the harness is from a later year or a "universal" one
M
Thread Starter
Racer
Joined: Aug 2017
Posts: 352
Likes: 47
From: Bham, Alabama
In the '70 & '71 diagrams I have, the only lamps in the cabin with 2 wires are:
Courtesy - OR & W
Heater - B & GY
Door Ajar - P & LBL
Headlights Door - W/DG/DBL & LBL
Park Brake - P & T
Glove Cmprtmt - B/OR & B
I don't see anything with a green & pink (then again this is not for a "72)
2 quick silly questions:
1) Was the lamp ground OK when you tried to test it?
2) Has your color vision been checked lately?
Paul
Courtesy - OR & W
Heater - B & GY
Door Ajar - P & LBL
Headlights Door - W/DG/DBL & LBL
Park Brake - P & T
Glove Cmprtmt - B/OR & B
I don't see anything with a green & pink (then again this is not for a "72)
2 quick silly questions:
1) Was the lamp ground OK when you tried to test it?
2) Has your color vision been checked lately?
Paul
As for my vision, no, but I think I'm still good with colors.
Thanks everyone!
Keith
Burning Brakes
Joined: Oct 2018
Posts: 1,031
Likes: 465
From: Henderson, NV
St. Jude Donor '19-'20-'21-'22
Not being totally familiar with every option offered in 1972, could the extra bulb be for an option not included in your specific build? AC, Automatic transmission, etc?
Just a thought.
Just a thought.
Burning Brakes
Joined: Oct 2018
Posts: 1,031
Likes: 465
From: Henderson, NV
St. Jude Donor '19-'20-'21-'22
Here's another theory . . .
I too have an extra bulb, just hanging out behind the center cluster. I'm not sure of the wiring color, but it is not functional.
I have a fairly early build 72 (Oct 71). Perhaps they used a 71 harness on our cars? Was there a dash light or gauge present on the 71's that was not used on the 72 model year cars?
If your car is also an early build car, that may be the explanation.
I too have an extra bulb, just hanging out behind the center cluster. I'm not sure of the wiring color, but it is not functional.
I have a fairly early build 72 (Oct 71). Perhaps they used a 71 harness on our cars? Was there a dash light or gauge present on the 71's that was not used on the 72 model year cars?
If your car is also an early build car, that may be the explanation.
Thread Starter
Racer
Joined: Aug 2017
Posts: 352
Likes: 47
From: Bham, Alabama
Interesting. My car is equipped with most options (a/c, auto, ps, pw), so I don't think it's that. Seeing that you have the extra bulb, maybe that is it.
Does anyone have a '71 wiring diagram by chance?
Actually, I just thought about something. The PO gave me a box full of parts and I thin the harness he replaced is in there. I'm sure it's the original. Let me take a look at it and see it the socket exists. I'll report back.
Keith
Does anyone have a '71 wiring diagram by chance?
Actually, I just thought about something. The PO gave me a box full of parts and I thin the harness he replaced is in there. I'm sure it's the original. Let me take a look at it and see it the socket exists. I'll report back.
Keith
Burning Brakes
Joined: Oct 2018
Posts: 1,031
Likes: 465
From: Henderson, NV
St. Jude Donor '19-'20-'21-'22
The only thing that I'm aware of that the 71 dash had that the 72 didn't, is the push button to turn off the seat belt reminder. I'm not sure if that button was illuminated. This one's got me baffled.
I'll keep an eye on the thread to see what you come up with.
I'll keep an eye on the thread to see what you come up with.
Melting Slicks
Joined: Mar 2005
Posts: 2,095
Likes: 299
From: Midlothian VA
That's the door ajar light - Pink & Blue
Goes in the back of the center console behind the door ajar lens.
If it doesn't come on when your door is open + ignition on then you need to check that your door ajar switches at the rear/back of the door opening are functioning.
Last edited by Hammerhead Fred; Oct 30, 2020 at 03:08 PM.