Post by: huntandjeep on January 25, 2020, 06:59:42 PM
So I have 6 working lights ( 4 hooked up in the trailer and 2 spares ) , 4 pigtails that are hot and yet only the 2 lights on the passenger side will work . No combination of lights will work on the drivers side , and only the 2 that are currently working on the passenger side will work there , none of the other 4 will work. Anybody have any ideas , because this is making no sense at all .
I'm 90% sure the interior lighting , exhaust fan and plug all run off a 12v car battery .
Post by: getreal711 on January 25, 2020, 07:08:17 PM
Post by: huntandjeep on January 25, 2020, 07:16:38 PM
The 2 lights that don't work but have power. Make sure they have a ground. No ground and all the power in the world won't light them. Even slave in a ground to try them.The pigtail on the trailer consists of 2 male prongs , The light has females , 1 labeled " Source " the other " Ground " . When I hook the Alligator clip of my test light to " Ground " and probe the " Source " the test light lights up ? Doesn't that mean it's grounded ?
Post by: Crunchy on January 25, 2020, 08:12:53 PM
Post by: Boss .300 winmag on January 25, 2020, 08:57:35 PM
The 2 lights that don't work but have power. Make sure they have a ground. No ground and all the power in the world won't light them. Even slave in a ground to try them.
Do this first, it lights light up you know it’s a ground problem, and now you will know the rest of the story.😉
Your ground wire, or plug is jacked up.👍
Post by: the1rod on January 25, 2020, 09:36:21 PM
The means that you have power and ground at you're plug. And if the light has proven to work, then hooking it to the plugs should work. But there are a few possibilities. One, hook to a separate ground source and test the connectors and make sure they aren't labeled backwards. Also is your test light led or standard bulb? A led test light will light up with very little power which might not be enough to light up the trailer lights.The 2 lights that don't work but have power. Make sure they have a ground. No ground and all the power in the world won't light them. Even slave in a ground to try them.The pigtail on the trailer consists of 2 male prongs , The light has females , 1 labeled " Source " the other " Ground " . When I hook the Alligator clip of my test light to " Ground " and probe the " Source " the test light lights up ? Doesn't that mean it's grounded ?
Post by: huntandjeep on January 25, 2020, 09:40:13 PM
Post by: Cougartail on January 26, 2020, 12:06:00 AM
Post by: Russ McDonald on January 26, 2020, 04:02:47 AM
Remember.. The power flows out of the negative side of the battery then comes back to the positive side. this is why you always check for good grounds in 12v systems.Power or current flows from a battery from positive to negative. Current is the electricty. It is electrons that flow from negative to positive. That being said in any lower voltage system the ground is a big thing. If it is bad or flakey you will have issues for sure.
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Post by: Caseknife on January 26, 2020, 09:18:51 AM
Post by: Mark Brenckle on January 26, 2020, 10:01:49 AM
Use an 1157 bulb in a socket with pigtail for your test light, that will put a good load on your circuitry. If the lights that are in the trailer are LED, they are directional and won't work if hooked up backwards.:yeah: Keep your test light grounded to the same point and test each lead of the side that works and the side that doesn't. Label all the positive wires. Then hook your test light to the positive side and confirm your grounds.
Post by: huntandjeep on January 26, 2020, 01:40:49 PM
Post by: Cougartail on January 26, 2020, 04:36:16 PM
Remember.. The power flows out of the negative side of the battery then comes back to the positive side. this is why you always check for good grounds in 12v systems.Power or current flows from a battery from positive to negative. Current is the electricty. It is electrons that flow from negative to positive. That being said in any lower voltage system the ground is a big thing. If it is bad or flakey you will have issues for sure.
Sent from my SM-N976V using Tapatalk
Current is the flow of electrons. Motion, heat, and light are the three types of energy. Opposites attract and since the electrons are negatively charged they move to the positive terminal. The internal workings of the battery sets up a deficit of electrons on the positive side and excess on the negative side causing pressure, thus inducing the flow (Current). The only time this doesn't happen is when a separate power source exerts a greater pressure i.e. a car alternator. The alternator through chemical reactions resets the imbalance.
Post by: getreal711 on January 26, 2020, 04:36:27 PM
Post by: the1rod on January 26, 2020, 05:51:08 PM
You guys called it . It was a ground problem. The builders decided to pop rivet the ground to a section of trim . Ran the grounds straight to the trailer frame and everything works as should . Thanks
:tup:
Post by: huntandjeep on January 26, 2020, 05:55:29 PM
Glad we could help. We can bill you later for the consult fee.Bill all you want , collecting might be a problem :chuckle: :chuckle: . Seriously thanks guys
Post by: Mudman on January 26, 2020, 06:03:45 PM
Post by: the1rod on January 26, 2020, 06:54:15 PM
On a side note, ALum trlr hitches can pose problems due to lack of grounding as well. I know personally.
If your relying on the hitch to ground your trailer, your trailer is wired wrong.
Post by: Boss .300 winmag on January 26, 2020, 11:24:55 PM
Remember.. The power flows out of the negative side of the battery then comes back to the positive side. this is why you always check for good grounds in 12v systems.Power or current flows from a battery from positive to negative. Current is the electricty. It is electrons that flow from negative to positive. That being said in any lower voltage system the ground is a big thing. If it is bad or flakey you will have issues for sure.
Sent from my SM-N976V using Tapatalk
Current is the flow of electrons. Motion, heat, and light are the three types of energy. Opposites attract and since the electrons are negatively charged they move to the positive terminal. The internal workings of the battery sets up a deficit of electrons on the positive side and excess on the negative side causing pressure, thus inducing the flow (Current). The only time this doesn't happen is when a separate power source exerts a greater pressure i.e. a car alternator. The alternator through chemical reactions resets the imbalance.
You a science teacher, scientist, electrician, or electrical engineer
Post by: Cougartail on January 27, 2020, 07:44:05 AM
Remember.. The power flows out of the negative side of the battery then comes back to the positive side. this is why you always check for good grounds in 12v systems.Power or current flows from a battery from positive to negative. Current is the electricty. It is electrons that flow from negative to positive. That being said in any lower voltage system the ground is a big thing. If it is bad or flakey you will have issues for sure.
Sent from my SM-N976V using Tapatalk
Current is the flow of electrons. Motion, heat, and light are the three types of energy. Opposites attract and since the electrons are negatively charged they move to the positive terminal. The internal workings of the battery sets up a deficit of electrons on the positive side and excess on the negative side causing pressure, thus inducing the flow (Current). The only time this doesn't happen is when a separate power source exerts a greater pressure i.e. a car alternator. The alternator through chemical reactions resets the imbalance.
You a science teacher, scientist, electrician, or electrical engineer
Electrician, who works with an electrical engineer at a scientific research company. lol
Post by: Stein on January 27, 2020, 08:15:40 AM
Post by: Mudman on January 27, 2020, 11:44:19 AM
Not always, thus my point. Depends on how its wired/grounded.On a side note, ALum trlr hitches can pose problems due to lack of grounding as well. I know personally.
If your relying on the hitch to ground your trailer, your trailer is wired wrong.
Post by: Mudman on January 27, 2020, 11:45:35 AM
Post by: getreal711 on January 27, 2020, 12:54:07 PM