Do I need extra relays?

Printed From: the12volt.com
Forum Name: Relays
Forum Discription: Relay Diagrams, SPDT Relays, SPST Relays, DPDT Relays, Latching Relays, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=33917
Printed Date: August 25, 2025 at 12:08 PM

Topic: Do I need extra relays?

Posted By: mears
Subject: Do I need extra relays?
Date Posted: June 15, 2004 at 11:17 AM

I am picking up a 6500esp for a 2000 Malibu (power doors, locks, and trunk release) and I was wondering if I will need to buy extra relays or will the alarm have everything I need?

Replies:

Posted By: villynne
Date Posted: June 15, 2004 at 12:12 PM

get a few to be on the safe side u may need some to convert a + to - polarity

Posted By: Teamrf
Date Posted: June 15, 2004 at 1:21 PM

You may need one if you want to use that trunk release feature.

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Posted By: mears
Date Posted: June 16, 2004 at 9:24 AM

Ok, so would I only need SPDT and is there any difference b/w these two:

https://www.partsexpress.com/pe/showdetl.cfm?&DID=7&Partnumber=330-070

https://www.partsexpress.com/pe/showdetl.cfm?&DID=7&Partnumber=330-073

Posted By: catch22
Date Posted: June 16, 2004 at 1:16 PM

Get the Bosh SPDT relay.

You might need two relays for the door locks, one for the trunk release, and any other feature you want to hook up, ex; ign kill, domelight supervision, channel 2,3 output.

Check your car's wiring on the database to know what kind of polarity to account for. Most alarm only supply low amperage outputs so you use that to trigger relays.

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