1988 bmw 325is starter relay
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=124061
Printed Date: June 19, 2025 at 10:33 AM
Topic: 1988 bmw 325is starter relay
Posted By: Elizstoy
Subject: 1988 bmw 325is starter relay
Date Posted: October 22, 2010 at 8:52 AM
I have a 1988 BMW 325IS it has an alarm already istalled i wanted to hook up the starter kill on it. What would be the correct relay wiring and diode placement for this vehicle. Thanks
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Replies:
Posted By: howie ll
Date Posted: October 22, 2010 at 1:22 PM
How do you intend controlling the starter kill, hidden switch, alarm etc. Tell me so I can tell you how!
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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.
Posted By: howie ll
Date Posted: October 22, 2010 at 1:22 PM
Also is this an E36 or an E46?
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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.
Posted By: howie ll
Date Posted: October 22, 2010 at 1:26 PM
Neg armed output from the alarm, also known as the GWA wire, probably orange (depends on the make of alarm).
GWA to relay 85.
Ignition to 86.
Starter lead cut, ignition switch side to 87a and starter motor side to 30.
Diode (1N4004) across 85 and 86 (solder to the base of the terminals) with the diode band facing 86.
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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.
Posted By: Elizstoy
Date Posted: October 23, 2010 at 12:20 AM
Howie thanks. It will be controlled by the alarm that is installed on the car already. The alarm is a TELECOM never heard of it someone said it was from BICRON I tried posting help for the alarm never got any replies. And the BMW is a 1988 E30 325IS. Again thanks for the help
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Posted By: howie ll
Date Posted: October 23, 2010 at 1:36 AM
Looking at the photo in the other post, I'd say a pair of the four on the right might be for starter kill.
My other advice would be to dump it.
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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.
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