Unknown connector

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Mar 21, 2015 | 02:52 PM

robertfrost

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Unknown connector

Hello guys,

today I came across a connector in my C3 which makes me frown. It is a round rubber connector at the end of two wires (one black, the other white or maybe yellow) that come out of the backside of the fusebox on the firewall. It just hung down there unconnected. My car is a ´74 model, 454 cui, manual, w/o air condition. It would be great if someone has got an idea what this connector is for.

thanks & regards

Fritz

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Mar 21, 2015 | 04:53 PM

Alan 71

Team Owner

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From: Westminster Maryland

Hi Fritz,
Not sure what the brake warning sensor on the brake distribution block looks like in 74.… maybe there?
Or, how about the temperature sender in the left side head…. does it reach that far?
Regards,
Alan

Here's the brake sensor in 71… just 1 wire.

Mar 21, 2015 | 05:12 PM

Peterbuilt

Le Mans Master

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From: mount holly NC

2025 c3 ('74-'82) of the Year Finalist - Unmodified

2019 C3 of Year Finalist (appearance mods)

I'll take a guess!

Could it be the plug for the anti theft switch?

Mar 22, 2015 | 10:17 AM

0Willcox Corvette

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From: Jeffersonville Indiana 812-288-7103

St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15

That is 100 percent correct. It is the connector for the alarm cylinder limit switch

, here is a clearer picture.

This is the same connector used up front on the headlamp limit switch (same switch) for all 68-82 cars.

Willcox

Last edited by Willcox Corvette; Mar 22, 2015 at 10:19 AM.

Mar 25, 2015 | 08:25 AM

robertfrost

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Thank you guys,
but anti theft switch and brake distribution block are properly connected. Could it be a connector for an air conditioning component that remains unused as my car is without a/c?

kind regards

Fritz

Mar 25, 2015 | 08:33 AM

speedreed8

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From: Texas

how about the hood air door solenoid. wires were tan - black on schematic. just my shot at it.

Mar 25, 2015 | 10:22 AM

Ontario73

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From: London Ontario

Quote:

Originally Posted by speedreed8

how about the hood air door solenoid. wires were tan - black on schematic. just my shot at it.

I think thats the winner! Right color and location.

Mar 25, 2015 | 02:20 PM

0Willcox Corvette

Former Vendor

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From: Jeffersonville Indiana 812-288-7103

St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15

Quote:

Originally Posted by robertfrost

Fritz...

Are you sure? ?

There are two sets of wires by the alarm switch.
One set that goes on the actual alarm cylinder lock and one set that goes on the black limit switch.

The limit switch has a small button that pushes against the cylinder and if the alarm switch is moved or removed it sets off the alarm. The second set of wires should be It plugs into number 3 in the picture above. There really isn't anything else in that general area that would use that plug.

The cowl solenoid used a single wire connector

Here is the tamper switch