Ground??

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=10707
Printed Date: July 19, 2025 at 3:20 AM

Topic: Ground??

Posted By: Anthony1
Subject: Ground??
Date Posted: March 10, 2003 at 6:42 PM

this is probably a stupid question but I always here negative ground being used, Is there such a thing as posotive ground??If so what is the difference. When a output says grounded when armed for intance on a alarm, is this just the same as when you ground something on metal, or is there electric current in this output???

Replies:

Posted By: the12volt
Date Posted: March 10, 2003 at 7:00 PM

Yes, there is such a thing as a positive ground. Older Volkswagon Beetles used a positive ground. This is when the positive terminal of the battery goes to the chassis and the negative side is run through the fuse panel, switches, etc.

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Posted By: the12volt
Date Posted: March 10, 2003 at 7:05 PM

Anthony1 wrote:

.... When a output says grounded when armed for intance on a alarm, is this just the same as when you ground something on metal, or is there electric current in this output???

This refers to the output having continuity to ground in a negative ground system or "something metal" as you stated, however not everything metal in a vehicle is necessarily grounded ;)

Edit: Yes, there is a limited amount of current that may pass through this output. Typical ratings are around 200mA to 300mA, but may differ. Check your manual for the specific rating.

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