4 vs 5 terminal relay

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peter hogan

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Joined: September 06, 2007

Location: New York, United States

Posted: September 06, 2007 at 9:32 AM / IP Logged

I am wiring a keyless entry on a G6. I have 2, 4 terminal automotive relays from radio shack. These relays appear to be the same as the 5 terminal in my wiring diagram, except that they do not have a terminal 87a in the center. Will these work in the same manner? The wiring diagram does not make use of the fifth (87a) terminal. A Pontiac G6 uses a single wire to lock and unlock.

p.hogan

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Posted: September 06, 2007 at 9:53 AM / IP Logged

Yes.

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KPierson

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Posted: September 06, 2007 at 2:58 PM / IP Logged

What you have is a NO (normall open) SPST relay. The 5 pin relays are SPDT relays and contain a NC (normally closed) leg in addition to the NO leg. If the 87A isn't needed in your system then you can get by with the SPST you picked up from Radioshack

Kevin Pierson

peter hogan

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Joined: September 06, 2007

Location: New York, United States

Posted: September 06, 2007 at 3:22 PM / IP Logged

Kevin,

Thanks for the info!

p.hogan

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4 vs 5 terminal relay

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