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06-08-2017, 05:44 PM | #1 |
Gone Wild
Join Date: Dec 2010
Location: Lone Star State
Posts: 334
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Determining relay pins
I had a beep beep horn on my cart some years ago but the horn shorted out or something and it took it off, along with the relay. Now I decided to put on another horn (with relay). I tossed the old horn and relay so I am starting over. I bought a three pin replay and lo and behold the pins are not marked. The relay is a Horn Relay Standard HR127T. Since I am about as dumb as a box of rocks when it comes to wiring I need to know the pin numbers or in the case of most three pin relays S (switch) B (battery) H (horn). This relay doesn't have any markings and so I am stuck. Does anyone know how to determine pin names or numbers (30, 85, 86 ) by using a multimeter? I am afraid to do trial and error and blow the relay. Wish I would have kept the old relay that had the pins marked. Thanks, remember make is simple if you can.
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06-08-2017, 06:14 PM | #2 |
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Re: Determining relay pins
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06-09-2017, 05:26 AM | #3 |
Gone Wild
Join Date: Dec 2010
Location: Lone Star State
Posts: 334
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Re: Determining relay pins
Thanks for your reply but the diagram assumes that the pins are marked. I can wire with marked pins. I need to know how to determine which pins are which. Once I get the 30 pin or B pin I think that you can go either way on the connection to the horn side and the switch/ground. BUT I have to know which is Battery (30) as a starting point.
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06-09-2017, 05:50 AM | #4 |
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Re: Determining relay pins
are they marked ?
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06-09-2017, 06:01 AM | #5 |
Gone Wild
Join Date: Dec 2010
Location: Lone Star State
Posts: 334
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Re: Determining relay pins
No markings at all. That is the problem. I sent an email to the seller and of course he never replied, just sent me the relay. I think I will just have to toss it and go to the auto parts store and find one marked (like the one I threw away). Thanks for your help.
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06-09-2017, 06:14 AM | #6 |
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Re: Determining relay pins
photo of relay ?
it would be easy to test check for continuity the pins with continuity are coil other is load |
06-09-2017, 08:35 AM | #7 | |
Gone Wild
Join Date: Dec 2010
Location: Lone Star State
Posts: 334
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Re: Determining relay pins
Quote:
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06-09-2017, 11:08 AM | #8 |
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Re: Determining relay pins
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