finding a relay for an alarm

Printed From: the12volt.com
Forum Name: Car Security and Convenience
Forum Discription: Car Alarms, Keyless Entries, Remote Starters, Immobilizer Bypasses, Sensors, Door Locks, Window Modules, Heated Mirrors, Heated Seats, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=132065
Printed Date: May 04, 2024 at 7:15 PM

Topic: finding a relay for an alarm

Posted By: Fosgate3
Subject: finding a relay for an alarm
Date Posted: August 25, 2012 at 10:40 AM

Below is a picture of the circuit board in an old Harada HCS-900. The alarm works great except for the remote start. The relay for the start output wire does not "click" when activated. I'm looking for a replacement relay. It's the one in the picture that the tip of the screwdriver is touching. I've done google searches on the information on the relay but nothing seems to come up so I'm hoping someone here can help

posted_image

In case you can't read the relay, the top of it states:

DATA ST
02S-SD-2A
12V DC 30A
KOREA

Thanks for taking the time to read and I hope I put this in the right forum. :)

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i think a wire's loose somewhere...

Replies:

Posted By: auto enhancers
Date Posted: August 25, 2012 at 4:09 PM

Looks like a standard 30 amp micro relay. You will need to desolder it to figure out the pin configuration. Then a google search should allow you to find what you are looking for.

Posted By: Fosgate3
Date Posted: August 25, 2012 at 4:27 PM

I think you are right. i know two of the pins are 12v constant, and one is obvious a 12v out. Just don't know if it's using 4 pins or 5. I'll get out the soldering station and yank it out.

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i think a wire's loose somewhere...

Posted By: howie ll
Date Posted: August 25, 2012 at 4:42 PM

It will be a 5 pin with 4 wired, 85, 86, 87a and 30 try Mouser, Farnel etc.
Standard 12V coil PCB relay, 30amp switching power capacity.
Or use an external Bosch/Tycho cube type.

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Amateurs assume, don't test and have problems; pros test first. I am not a free install service.
Read the installation manual, do a search here or online for your vehicle wiring before posting.