Thread: Relay Wiring for Dummies????

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Those, without a doubt, are excellent diagrams. Just be aware that last diagram is using SPDT relays. With SPST relays terminals 87 and 87a are at the same electrical point (They are internally connected) while on SPDT relays those two terminals are separate.
I had to use SPDT relays when I wired the door lock switches to use the alarm system on my Dakota. I couldn't find them at any of the auto parts stores here in Springfield, but the car audio stores carried them.

My local surplus electronics store has Bosch relays for $1.00 ea. vs Pep Boys $16.00 for the same one.

Originally Posted by NTFDAY

Those, without a doubt, are excellent diagrams. Just be aware that last diagram is using SPDT relays. With SPST relays terminals 87 and 87a are at the same electrical point (They are internally connected) while on SPDT relays those two terminals are separate.
I had to use SPDT relays when I wired the door lock switches to use the alarm system on my Dakota. I couldn't find them at any of the auto parts stores here in Springfield, but the car audio stores carried them.

So SPDT relays can be used to wire the door lock actuator. Good info and good to know that. Thanks

For more information try this site www.the12volt.com

Originally Posted by NTFDAY

For more information try this site www.the12volt.com

Ken, that is indeed one of the best places for wiring info.

I just realized that this was a thread that was 3+ years old!!