64 Wiring to horn relay - Chevelle Tech
Electrical & Wiring Troubleshooting electrical problems.

 
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post #1 of 9 (permalink) Old Jun 2nd, 20, 6:58 AM Thread Starter
Bmiller
 
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64 Wiring to horn relay

After replacing front wiring harness, I am starting to hookup wires to the horn relay. I am a little uneasy about how it was before so want to double check before just booking up wires. What wires hook up we’re on horn relay? One wire comes from battery and other red wires from harness. Also there is a black wire which was not even hooked up before. Any help?
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post #2 of 9 (permalink) Old Jun 2nd, 20, 8:50 AM
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Eric
 
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Re: 64 Wiring to horn relay

All off the red wires hook to the buss bar, the black wire is your horn contact from the steering wheel and goes to a separate terminal on the relay. The green wires are the horns.

You're just jealous because you can't hear the voices!

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post #3 of 9 (permalink) Old Jun 2nd, 20, 9:54 PM Thread Starter
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Re: 64 Wiring to horn relay

Ya the horn plug is pretty straight forward, itís the black wire that I am unsure of?
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post #4 of 9 (permalink) Old Jun 3rd, 20, 12:33 PM
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Jeff
 
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Re: 64 Wiring to horn relay

Look at the side of the horn relay/ junction box. Pins 3 and 5 are where all your red wires are attaching. Pin 1 is the green wire to the horns, black should connect to pin 2.

*Jeff*

Project Salty - 1964 4 door Malibu, beaten, neglected, red headed foster child
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post #5 of 9 (permalink) Old Jun 3rd, 20, 2:24 PM
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Re: 64 Wiring to horn relay

Maybe this will help. I took this pic before disassembling my wagon...



64 2 door Wagon Build thread

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67 2 door Sedan LS1 T56

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post #6 of 9 (permalink) Old Jun 3rd, 20, 8:42 PM
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Re: 64 Wiring to horn relay

Just throwing this out but with the terminals with the fork ends I would think they would go under the screws on the buss and any terminal with a female end would plug into specific male terminals under the relay. I could be wrong as I cannot see the underside of the relay but I do not remember seeing any Chevrolet horn activation wire terminated with a fork terminal. All I have seen are horn activation wire ends with a 1/4" female connector encased in a plastic housing.

Could the small black with the fork be for an optional ammeter ?. Maybe the harness is made to use an external shunt for an ammeter circuit ?.

Don't go assuming anything because once you let the smoke out of the wire, that's a no good.

If you want to test the black wire while it's not connected to anything, an ohm meter should show a ground when the horn button is depressed.

Jim

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post #7 of 9 (permalink) Old Jun 5th, 20, 9:22 PM
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Jeff
 
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Quote:
Originally Posted by Jim Streib View Post
Just throwing this out but with the terminals with the fork ends I would think they would go under the screws on the buss and any terminal with a female end would plug into specific male terminals under the relay. I could be wrong as I cannot see the underside of the relay but I do not remember seeing any Chevrolet horn activation wire terminated with a fork terminal. All I have seen are horn activation wire ends with a 1/4" female connector encased in a plastic housing.

Could the small black with the fork be for an optional ammeter ?. Maybe the harness is made to use an external shunt for an ammeter circuit ?.

Don't go assuming anything because once you let the smoke out of the wire, that's a no good.

If you want to test the black wire while it's not connected to anything, an ohm meter should show a ground when the horn button is depressed.

Jim
Pretty sure Jim is right on this. Checked schematic and higher end Malibu ss had ammeter connection. Just checked my car, looks like the horn connector has horn power and button connection in same plug.

*Jeff*

Project Salty - 1964 4 door Malibu, beaten, neglected, red headed foster child
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post #8 of 9 (permalink) Old Jun 6th, 20, 9:09 AM Thread Starter
Bmiller
 
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Re: 64 Wiring to horn relay

Ok thanks for pics and info. Yes my horn connections are on same plug. So that makes since If black wire is for ammeter. I left that unplugged and taped off as my gauge is already fried and not hooked up. Going to start it up today and see how it goes

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post #9 of 9 (permalink) Old Jun 6th, 20, 10:04 AM
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Jeff
 
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Re: 64 Wiring to horn relay

Good luck!!

Here's the schematics if you need them:

Passenger compartment:

https://drive.google.com/file/d/1ojE...ew?usp=sharing

Engine compartment:

https://drive.google.com/file/d/11dk...ew?usp=sharing

*Jeff*

Project Salty - 1964 4 door Malibu, beaten, neglected, red headed foster child
LQ4 / T56 Swap
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