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Where is the fuse for the 12v lead in the 7way trailer connector on a 2006 sequoia. the lights and brakes work but no charge to the trailer battery

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

emissionwiz
  • 75744 Answers

SOURCE: 2004 F250 No brakelights/turn lights on trailer

You will need to get a 12 volt test light and check the trailer connector for a voltage signal to the trailer, it may also have seperate fuses under the hood for the trailer lights if the system is factory installed, federal law requires the 2 systems be isolated, if there are blown fuses find the short in the trailer before replacing fuse(s), with no exceptions the short is always in the trailer. Hint, check the fuses 1st.

Posted on Jul 28, 2008

MNfisherman
  • 11896 Answers

SOURCE: Tailer running lighs dont work

There should be a fusible link somewhere in the wiring. That should be where the problem is at.

Posted on Jan 19, 2009

  • 30 Answers

SOURCE: 2006 Toyota Tundra battery not charging

if you left your key on, and not in the "accessory" position you may have ruined your coil! if your key is turned on, it is charged with alot of electricity.

Posted on Mar 23, 2009

  • 1 Answer

SOURCE: 2006 GMC Sierra 2500HD 4WD trailer light connection fuse blown?

under the hood on drivers side right behind the battery. Will be marked trailer light left sand right.

Posted on Jun 27, 2009

Mike258
  • 1498 Answers

SOURCE: No trailer right turn signal or brake light

Hey Boon,

The pinouts for a 7-way plug are as follows:
Seven wire Trailer plugs:

Horse, stock or utility trailers:

White = Ground - 1
Blue = Electric Brakes - 2
Brown = Tail and clearance lights - 3
Black = Battery, aux power - 4
Yellow = Left turn/Brake - 5
Green = Right turn Brake - 6
Orange or Purple (not both) = Auxilliary or Reverse - 7

Recreational Vehicle:
White = Ground - 1
Blue = Electric Brakes - 2
Green = Tail and clearance lights - 3
Black = Battery, aux power - 4
Red = Left turn/Brake - 5
Brown = Right turn Brake - 6
Yellow = Auxilliary or Reverse - 7

In both cases 4 is battery and 7 is reverse, aux or not used.

Double check your wiring using these lists as a reference.

Click here for my post on Trailer wiring

This should get us closer to the answer.

Best regards,
Mike

Posted on Sep 09, 2009

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I have a horse trailer and all of the lights works except the left turn signal. There is power at the appropriate blade(7way) on the tow vehicle (female) side but when I plug the trailer in and pull the...


Check the lug on the truck to be sure it doesn't move when the plug is connected. I had one that read 12 volts when I tested it but would slide in or move when I plugged into it. I replaced the plug on the truck and it solved that problem. Trailer wiring typical is yellow to the left turn/brake light. Does the left brake light work? Do the flashers work? Double check the fuses also... to left turn/brake on trailer. Hope this helps. Mike

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1 Answer

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Spray a little WD-40 on it or use electric grease and see if it helps. Some trucks used switched power and some used direct power. I wired mine directly and put a toggle switch under the dash. It is not uncommon to have voltage drop through a connection, but yours is above normal. Disconnect the batteries in the trailer and check voltage again. The batteries in the trailer might be drawing on the truck voltage. Also check the voltage on the truck side with everything hooked up and see if it drops also. Hope this helps, Mike

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Do u have a 4,5,6,or 7 way (wire) system? If it's 4 way it allows basic hookup for 3 lighting functions:
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5way is same as above, but adds a BLUE wire for brake signal or aux. power. Its used on pop up campers, utility and boat trailers.

6way (rectangle plug) green=right turn signal, yellow=left turn signal, brown=taillight, white=ground, red and blue can be used for brake control or auxilary. Used on small motorcycle trailers, snowmobile trailers, utility trailers.

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