setting up after winter....battery

[lukenick1]

Originally Posted by Paintinfool3

good question ... I think there are some posts on here but it would probably be easier to look up 7 prong trailer wiring and look at which one should be hot when truck ignition is in the on position. Then using a 12 volt test light hook wire with alligator clip to ground on truck and touch probe end to that prong and see if it lights up

Shouldn't they all be hot when tv is on? I mean once it's plugged in to trailer they all have a purpose right?

[Paintinfool3]

http://www.countrytrailer.com/uploads/7wayplug.pdf heres a shortcut to the plug wiring diagram

[Paintinfool3]

trailer brake prong is only hot when brakes are applied, running or parking light prong is only hot when lights are on , left and right turn signals are only hot and will blink when the turn signals are on

[lukenick1]

Originally Posted by Paintinfool3

http://www.countrytrailer.com/uploads/7wayplug.pdf heres a shortcut to the plug wiring diagram

Thank you! I found an OHM meter here at the house can I use that? Do I test the plug on the tv or the trailer? Sorry if a sound so stupid but this is my first camper and I am learning. ha ha

[Paintinfool3]

on the tv but I am not sure which holes for you to put the probes in and what setting on your ohm meter to use

[lukenick1]

I just tested my battery with the OHM meter and it read -16. Yikes

[ALJO]

They have 7 prong plug testers just like your regular 7 prong plug. That way you can test everything with ease. You might have blown your Batt.+ fuse in your TV if you where hooked up to the TT. Then it will not charge the TT battery.

[lukenick1]

Originally Posted by ALJO

They have 7 prong plug testers just like your regular 7 prong plug. That way you can test everything with ease. You might have blown your Batt.+ fuse in your TV if you where hooked up to the TT. Then it will not charge the TT battery.

How would that have gotten blown? I had only been on 2 camping trips with it and always hooked up to power.

[ALJO]

Be sure how to use an ohm meter otherwise you can toasted in a hurry. The cheaper ohm meters are not circuit protected.

[ALJO]

When you are hooked up to your TV and then to a reverse polarity connection the TV Batt.+ blows. unless there is a relays and the fuse is before the relays. Hope I not confuse you now?

[lukenick1]

Originally Posted by ALJO

When you are hooked up to your TV and then to a reverse polarity connection the TV Batt.+ blows. unless there is a relays and the fuse is before the relays. Hope I not confuse you now?

In english please???? lol

[Paintinfool3]

ohm meters usually have three ports to put the probe wires into and numerous settings on the dial. the wires would go into the positive and negative holes on the ohm meter and not the one that looks like a horse shoe then the tester would have to be set to the low dc position not ac but dc volts black negative and red positive on ohm meter and touch to battery for a second and see what the reading is ... then you would know how to set it for checking the truck ... may be easier though just to go to auto parts store and have it checked lol

[lukenick1]

Originally Posted by Paintinfool3

ohm meters usually have three ports to put the probe wires into and numerous settings on the dial. the wires would go into the positive and negative holes on the ohm meter and not the one that looks like a horse shoe then the tester would have to be set to the low dc position not ac but dc volts black negative and red positive on ohm meter and touch to battery for a second and see what the reading is ... then you would know how to set it for checking the truck ... may be easier though just to go to auto parts store and have it checked lol

I did check the battery with the OHM.....I set it to the 20 on the DCV and touched the red and black to the battery and it read -16. Yikes

[Paintinfool3]

ok in English all 12 volt circuits on a trailer plug on your tv should be protected by a fuse which if a short in the wiring occurs it will blow the fuse instead of catching your vehicle on fire .... but we don't even know if that circuit was connected to your tv plug yet so that's the first thing to look at ... thus the test of that prong with vehicle ignition in the on position

[lukenick1]

[Paintinfool3]

you can also use a regular aa or aaa battery you have around the house to check and see if the ohm meter is on the right setting ... it should read 1.5 volts

[Paintinfool3]

black wire should be plugged into the common port

[lukenick1]

Originally Posted by Paintinfool3

you can also use a regular aa or aaa battery you have around the house to check and see if the ohm meter is on the right setting ... it should read 1.5 volts

what do I put the dial on to check aa batteries? Should the black be plugged into the com to check the trailer battery and aa batteries?

[klpoppe]

Originally Posted by lukenick1

I did check the battery with the OHM.....I set it to the 20 on the DCV and touched the red and black to the battery and it read -16. Yikes

Sounds like you had polarity reversed. Try red to positive and black to negative side.

[klpoppe]

Originally Posted by Paintinfool3

black wire should be plugged into the common port

x2.. didn't take good look at picture before i posted my last reply