ground 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=136678
Printed Date: May 09, 2024 at 5:21 AM
Topic: ground wire
Posted By: rraabb11
Subject: ground wire
Date Posted: May 22, 2014 at 7:52 PM
Installing a digital outside thermometer.
The sensor in the bumper requires both a ground and a power source
Same with the display.
Could I connect all the grounds together and connect them close to the fuse panel? In other words a 3 wire terminal? (G G leg)
More importantly, is there a problem with it not grounding close to the accessory (sensor) and having a long ground wire? I know it would be easy to ground by the bumper, I just don't the ground close to salt and the elements in the engine compartment.
Thanks for your help in advance.
Replies:
Posted By: oldspark
Date Posted: May 23, 2014 at 12:00 AM
Provided there is no significant voltage drop due to the long wire, no - a remote ground should not be a problem.
If it were a signal ground it would be an advantage to ground remotely, ie, close to the reader.
Usually a single (common point) GND is best - especially for signals. Power GNDs usually aren't so fussy except where ground loops are an issue.
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