Well I'm getting close to stabbing my 72 dash into 70 car and I think it's ready with all the help I have gotton from you all.

The deal is that I have two connectors I can't find on the 72 dash harness wiring diagram and don't know what they are.

One is a right angle two pin connector with pink and pink/white wires. The other is white and orange two pin connector and has retention clips.

Both connectors exit at the same location as the ignition swith and othe column related connectors.

Thanks Dudes, as soon as I know what this stuff is, I'm bolting her in!

I figured out the white and orange is the brake light, still working on the pink&pink/white.

Also I have a single lug with two brown wires coming of it, not sure what it is either? It exits the dash harness around the heater and radio connectors.

John

[This message has been edited by hilljack (edited 08-14-2002).]

I have the wiring diagram that is in my service manual and there is not a listing for a pink/pink white pair. Most of the pink wires do have to do with lighting. Like the dir sig flash conn. It list a 20 gauge p and a 12 guage p.

------------------
Deon
72SS454 Clone
Website (http://home.sc.rr.com/deon)

You do realize that the 72 harness has many differences at the bulkhead connector and will require changes to get it to mate with a 70 engine harness?

------------------
Steve Strasemeier (70SS 396, Fathom Blue/White Stripes)
My 70SS (http://www.chevelles.com/decoder/about.html)

yeah, I know which one your talking about it's already going to the flasher. The one I don't know about is an identical connector to the flasher but has two 20 AWG wires, one is pink and the other is pink with white stripe.

Maybe it's part of the curtousy light, if optioned. Mine is not.

it's a mystery I guess, also the one lug with two brown wires?

I can't find either one in my diagram also!

it's a stock original harness.

Thanks
John

Steve, big time man! Elree helped a ton. It's all 1970 at the bulkhead except the TCS circuit has been removed from both the 72 dash harness and my 70 engine harness. The key minder buzzer is 72 under dash.

When I get it all done and working I'll post the modifications required.

I'm even going to make the seat belt warning crap work. It sounds crazy but since it's there it'll bug me if it don't work!

John

Pink /pink-pink white is going to go on the reverse -nuetral safety switch at the base of the column.
Brown double lead is for the A/C switch.
I believe that is the power in to the control panel.
A/C panel has 3 different plugs going to it.
If you're not sure shoot me a email and I'll send a e-pic of an old panel

------------------
Philip Mullaly
72 TPI El Camino
You can never fix a Ford,You can only work on them alot.
70 442 (http://www.chevelles.com/showroom/442lftsd.jpg)
The Z-meano (http://www.chevelles.com/showroom/Caminoside.jpg)
Cowl induction injection (http://www.chevelles.com/showroom/tpienglft.jpg)

I have a four speed setup and it only has one pair of lugs on the column switch. I'm not sure if it's correct for 72 harness or not, the column is 1970 manual trans as is the switch. Light Green and Pink go there for the reverse light.

The purple purple goes to the nuetral safty near clutch pedal. The other two look(pink & pink/white to me. The assembly manual shows other colors that go to the switch, and it does show it as a 6 pin switch. So what you said makes sence.

Is this true for both manual and auto? What is the function of thease last two wires and how come the color code does not match what I have?

Looks like the last two wires of the reverse switch could be to switch the seat belt warning buzzer. I gues so you can turn of the anoying buzzer and listen to the radio as long as the shifter is in reverse!

But the assembly manual has colors Y/DBL/B & B not the Pink & Pink/white.

Looks like I might have the wrong column switch if that's indeed where the pink & pink/white go?

Thanks!

John

[This message has been edited by hilljack (edited 08-15-2002).]

Here's what you need to do right now. Decide is it going to be a 4sp or auto, Floor or column shifted, 70 or 72,gauge or idiot light optional dash or Malibu dash.
All these are factors in your wiring.
Figure what your going to use then adapt your wiring and schematics

------------------
Philip Mullaly
72 TPI El Camino
You can never fix a Ford,You can only work on them alot.
70 442 (http://www.chevelles.com/showroom/442lftsd.jpg)
The Z-meano (http://www.chevelles.com/showroom/Caminoside.jpg)
Cowl induction injection (http://www.chevelles.com/showroom/tpienglft.jpg)

I have already decided a long time ago. What I stated is what I curently have.

70 car, 70 column(4speed switches), 72 tach dash harness, 72 tach dash.

I'm still back to the original problem that I can't locate a pink & Pink/white wire on a 72 wire diagram.

I don't know what it is or what it does? It's identical to a flasher connector, if that helps.

I did purchase a 72 assembly manual today and I will check the assembly for the harness routing but I have already looked at the schematics.

John

Philip,

Thanks a lot for the pictures! That is definitely what I have. At least I know where they go, but what do they do?

I might not need them or I will have to either jumper or get a 72 switch.


John

Philip is right. The pink pair does go to the 72 neutral safety switch. These are part of the 72 seat belt warning system. If you try to make it work you will need the pressure switches than mount under the seat. This system works terrible. In a bench seat car, every time you hit a bump, it goes off. I disconnected mine shortly after I brought it home from the dealer.
You may want to take a look at the wiper connector and compare it to your car. Believe the switch and connector are different.

Yeah John mine is different I have the 70 switch for manual, that only has provisions for the reverse lights only.

Since it's only for the seat belt buzzer I'm not overly concerned about it, but I would like to make it work. Plan is to design a simple timer circuit to allow a buzz for a short period of time. I'm not planning on putting the seat or buckle switches in. Instead I'll tap in at the rear harness connector under dash.

I'm assuming that the circuit is normally grounded and pressure on the seat opens the switch, also in parallel with another ground path through the seat belt that opens when the belt is in use. Both are required to disable the buzzer.


Do you remember how the column played into this equation? Sounds like if you put the shifter in park or reverse (4-speed) it would also disable the buzzer. Sow it would only buzz in gear?

I guess I need a 72 switch, preferable a 4-speed one.

The only thing that through me is that the manual show thease wires as being different colors than pink&pink/white!

Thanks everyone!

John


[This message has been edited by hilljack2 (edited 08-16-2002).]

Well I just got done looking at the 72 assembly manual and it looks like the p&p/w may not go to the nuetral safty switch but possibly to a relay. Page 452 of the assembly manual shows manual shift sweep dash only and there is no mention of manual shift round dash wiring at all! The switch shown has only two lugs on it and looks identical to 70 manual switch. Which is what I have now.

Also I just realized that in 72 the wiring diagrams are not in the assembly manual so I'm going back to chevyland to purchase the 72 wireing diagrams.

I might be able to trace it out in the diagram but I'm 90% sure tach dash manual shift does not exist.

I think I already have all the diagrams and I have yet to see the pink & pink/white. I'm going to buy another set of wiring diagrams to make sure i have them all.


If anyone has a manual shift 72 round dash and knows where the pink&pink/white go that would be too cool!

John

Yes the wires in question are for the seat belt warning circuit column switch. The factory wiring diagrams desn’t show this circuit as it is wired. “Well I just got done looking at the 72 assembly manual and it looks like the p&p/w may not go to the nuetral safty switch but possibly to a relay.” The wires that connect to the relay/buzzer are yellow/dkblue/black and pink/white, 2 each. In the assembly manual (pg 452) It looks to me like the column mounted switch, used with the floor shift or column shift manual trans, has only one switch used for the backup lights. The assembly manual is not real clear on this so I don’t know the seatbelt warning circuit works in the man trans applications. The auto trans switch will not operate the back up lights correctly.

After looking over the assembly manual these are my thoughts on the seat belt warning circuit.

The dash harness for an automatic car is different from that of a manual shift car, one difference is the seat belt warning circuit. If you look at the wiring diagram (the one I have) the warning light and the buzzer each have a pink wire that is connected, ultimately, to the IGN (ignition) fuse and a black wire. The pink is power for the circuit the black grounds through the seat belt switch/seat switch. When the ignition switch is on the light/buzzer are powered and will light/buzz depending on the status of the seat belt switch/seat switch. I think this is how it is wired on the manual trans car. I don’t have a harness from a man trans car so I don't know for sure.

The auto car has a single pink wire that connects to the IGN fuse and to the column switch. The pink/white wire connects to the buzzer and then to the light. The circuit is powered when the trans is shifted out of park.

So in your case I would jumper the pink wire to the pink/white wire. You can use the standard blade type connectors to make a jumper that will plug into the column switch connector.

Elree,

You always make it sound so simple! That sounds like a good plan.

Sounds like it will still buzz no matter what gear it's in, unlike the auto?

Thanks as always! I owe you some seat time for all this.

Anytime your in Sacto,
John