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11-08-2013, 09:46 AM
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#1
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Junior Member
Join Date: Sep 2013
Location: Muskoka, Ontario
Posts: 25
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reverse ground wire
I am installing a new rear view monitor in my 2004 Challenger. I am trying to hook into the wiring under the dash. There are several wires with connectors on it, I have the power wire there and there is a white wire with reverse ground printed on it. Can I use this wire to ground my monitor?
Bryan & Teresa, 2004 Challenger 34 ft with the cutest little Mini for a toad
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11-08-2013, 10:44 AM
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#2
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Senior Member
Gulf Streamers Club
Join Date: Jan 2012
Location: Cincinnati
Posts: 19,925
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I'm not sure what 'reverse ground' refers to. Is it a full time ground connection? You might test it with a multimeter or test light to be sure. There should be lots of ground sources under the dash, you can connect to any of them.
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Bob & Donna
'98 Gulf Stream Sun Voyager DP being pushed by a '00 Beetle TDI
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11-08-2013, 01:11 PM
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#3
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Senior Member
Newmar Owners Club Freightliner Owners Club Spartan Chassis
Join Date: Apr 2012
Location: ON THE ROAD...SOMEWHERE
Posts: 6,973
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Could that be a wire to the reverse light system to detect you are in reverse?
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Don, Sandee & GSD Zeus. Guardian GSDs Gunny (7/11/15) & Thor (5/5/15)
2006 2015 DSDP 4320 4369, FL Chassis, 2013 CR-V 2020 Jeep Overland, Blue Ox Avail, SMI AF1.
[SIGPIC][/SIGPIC]
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11-08-2013, 01:18 PM
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#4
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Senior Member
Ford Super Duty Owner
Join Date: Jan 2011
Location: Lowell, Arkansas
Posts: 7,303
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If it is a wire for the reverse lights putting it in reverse and checking for a voltage at that wire would tell you. If it is just a ground wire then it is a ground. There are no differences in grounds. It acts as a return path for electron flow when something is connected to a power lead. Without a return path electrons won't flow. In AC a ground and neutral are the same.
TeJay
__________________
TeJay Auto Instructor/4-yrs USAF/ Liz: RN/ WBGO 2014 Vista 30T/ F-53/CHF/5-Star/Koni * Bella & Izzy * Golden /Cocker mix/ Louie The Cat* All Retired
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11-08-2013, 01:31 PM
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#5
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Senior Member
Gulf Streamers Club
Join Date: Jan 2012
Location: Cincinnati
Posts: 19,925
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Quote:
Originally Posted by TeJay
If it is a wire for the reverse lights putting it in reverse and checking for a voltage at that wire would tell you. If it is just a ground wire then it is a ground. There are no differences in grounds. It acts as a return path for electron flow when something is connected to a power lead. Without a return path electrons won't flow. In AC a ground and neutral are the same.
TeJay
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There are some switched ground wires in 12 v systems, (dome lights, etc.) that's why I suggested to test it with a multimeter or test light before hooking up electronics.
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Bob & Donna
'98 Gulf Stream Sun Voyager DP being pushed by a '00 Beetle TDI
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11-08-2013, 04:47 PM
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#6
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Senior Member
Damon Owners Club Ford Super Duty Owner
Join Date: Apr 2008
Location: NAS Pensacola, FL
Posts: 349
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I believe that the wire becomes grounded when placing the transmission in reverse. This completes the circuit to turn the rear camera system on in reverse. My ADHD system will turn on automatically, with the power switch in OFF, when the coach is placed in reverse with the engine running. The first time this happened I started looking for a "problem" - The owner's manual did not describe this function. As I have found out some other automatic functions are also not described (i.e., BIRD). Pretty typical of all manufacturers. JM2¢...
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Ted & Diane Fulltiming in the DreamCatcher a
2008 Challenger 371PE on F53 w/ 2013 Kia Soul+ the DreamChaser
R'V there yet?
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11-08-2013, 06:13 PM
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#7
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Senior Member
Freightliner Owners Club
Join Date: Aug 2005
Location: Chicagoland
Posts: 715
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Hi "TeJay",
In the real world the electrons flow from the negative to the positive.
Siggy
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Siggy & Ursula.
2011 Newmar DSDP 4020 , (No DEF, 07 emission),
FTL XCR Chassis , Cummins ISL 400 HP
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11-08-2013, 06:25 PM
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#8
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Senior Member
Ford Super Duty Owner
Join Date: Jan 2011
Location: Lowell, Arkansas
Posts: 7,303
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Siggyd,
I did consider that I would get a comment regarding the flow of electrons. Actually when you're explaining the theory of electricity it matters not which way the electrons flow. The Air Force said that they flowed from negative to positive and the Navy said they flowed from positive to negative. They are both correct and both wrong. It's a matter of perspective I guess.
TeJay
__________________
TeJay Auto Instructor/4-yrs USAF/ Liz: RN/ WBGO 2014 Vista 30T/ F-53/CHF/5-Star/Koni * Bella & Izzy * Golden /Cocker mix/ Louie The Cat* All Retired
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11-08-2013, 06:29 PM
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#9
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Member
Join Date: Jul 2013
Location: Heading back to Tennessee
Posts: 81
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electron flow
Quote:
Originally Posted by siggyd
Hi "TeJay",
In the real world the electrons flow from the negative to the positive.
Siggy
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All depends what coast your on, EAST or WEST............haha
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CC Inspire 330 2005, Cat powered w/Allison 3000mh cooled by PTO driven fan
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11-08-2013, 06:41 PM
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#10
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Member
Join Date: Oct 2013
Posts: 73
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Ground and neutral aren't the same one is a bond to keep things at the same potential the other is a current carrying conductor
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11-08-2013, 07:17 PM
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#11
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Senior Member
Join Date: Mar 2007
Location: Apex, NC
Posts: 1,857
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Right you are Flair. Ground and neutral are separate until they get back to the service entrance where they are tied together. Under normal circumstances, neutral wire carries the same current as the hot wire and the ground wire carries no current. I have had some lively conversations with so called electricians concerning neutral vs ground.
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2010 Winnebago Journey Express 34Y
2010 Freightliner XCS (mfd 9/'09)
'07 Saturn Vue V6
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11-08-2013, 08:11 PM
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#12
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Junior Member
Join Date: Sep 2013
Location: Muskoka, Ontario
Posts: 25
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reverse ground wire
Thank you for all your suggestions and replies. Actually the wire is just hanging down from under the dash in the area where the old monitor used to be, maybe it was plugged in the back end of the voyager monitor I took out. Think it's safe to hook into or should I just ground it to something metal. Think probably would be safest if you don't know what you're doing?
Bryan
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11-08-2013, 09:31 PM
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#13
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Senior Member
Join Date: Jun 2012
Location: AB
Posts: 7,587
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The OP asked for the Time of Day, not necessarily how the Watch works.
Find a metal bracket such steering colum etc. and there is your ground.
__________________
2019 Unity LTV CB, pushed by a 2013 Honda CRV, BlueOx Baseplate, Aventa Bar & Patriot Brake
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11-08-2013, 11:11 PM
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#14
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Senior Member
Gulf Streamers Club
Join Date: Jan 2012
Location: Cincinnati
Posts: 19,925
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Quote:
Originally Posted by dennis45
The OP asked for the Time of Day, not necessarily how the Watch works.
Find a metal bracket such steering colum etc. and there is your ground.
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  Especially if he's unable to use a multimeter or test light, safest course is to just hook to a known grounded part of the chassis.
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Bob & Donna
'98 Gulf Stream Sun Voyager DP being pushed by a '00 Beetle TDI
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