Alarms that ask for the "Oil light wire"

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=40129
Printed Date: May 14, 2025 at 10:13 AM

Topic: Alarms that ask for the "Oil light wire"

Posted By: shesaidshewas18
Subject: Alarms that ask for the "Oil light wire"
Date Posted: October 01, 2004 at 8:59 PM

Some alarms ask for the oil light in the dash to inhibit remote start. Most alarms ask for the tach or alternator wire. The difference from the 2 in my experience is 1 asks for 6v the other asks for 12v. I was wondering if we can use a relay to convert what an alarm asks for wether be it 12v or 6v. Sorry if I didnt explain this enough thoroughly, Im in a hurry. TIA

Replies:

Posted By: auex
Date Posted: October 01, 2004 at 9:01 PM

Nope, one asks for ac current(tach) and one asks for dc(oil light). You must tag what ever the alarm asks for to install correctly.

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Posted By: shesaidshewas18
Date Posted: October 05, 2004 at 3:47 PM

Ahhh, I see. There's no way to convert from AC to DC?

Posted By: Teken
Date Posted: October 05, 2004 at 3:49 PM

shesaidshewas18 wrote:

Ahhh, I see. There's no way to convert from AC to DC?

Yes, but you would have to either make or purchase a bridge rectifier.

You can make a half wave rectifier with two diodes if you wish.

Regards

EVIL Teken . . .

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