When I plug in my trailer to my connector in the back of my truck. It doesnt work. What do I check to fix this?
On American SUV's, the Manufacturer includes a packet containing the extra flashers and harness "Pigs" to connect the rear of the SUV to the front power boxes.
You may be able to find this packet in the box or jacket that comes with your Jack. It is like they should label "some assembly required" on all Vehicles with Towing capabilities. Vehicles do not come with the Towing ****** or the trailer Ball either.
Since some trailers have Electric braking systems, most Manufacturers have left off the connections and provide the Owners with the packet containing underdash fittings and Extra heavy duty Flashers and turn signals.
If you look and have a cover on the Tow socket, the flap will have symbols for the function of the various terminals on the plug. Use a Voltmeter to test the output of each terminal when the turn signals or brakes are on. Depending on the number of terminals in the socket, there may be a power terminal used to recharge a boats' battery or a campers' battery
Posted on Jan 24, 2012
Aug 30, 2014 | Cars & Trucks
Aug 23, 2011 | 2008 Toyota Sienna
4 way flat molded connectors allow basic hookup for three lighting functions; right turn signal / stop light (green), left turn signal / stop light (yellow), taillight / license / side marker (brown) and a ground (white).
4 way tow vehicle side.
4 way trailer side.
5 Way Systems
Same as 4 way system listed above but adds a extra blue wire for brake signal or auxiliary power. Used on pop up camper trailers or utility / boat trailers.
5 way tow vehicle side.
5 way trailer side.
6 Way System, Rectangle Plug
3/4 inch by 1 inch 6 way rectangle connectors right turn signal (green), left turn signal (yellow), taillight (brown), ground (white). The red and blue wire can be used for brake control or auxiliary. Use on a small motorcycle trailer, snowmobile trailer or utility trailer. Can also be used as custom wiring on trailers with 3 light/wire systems. See "Tow Vehicle Taillight Wiring" below.
6 way tow vehicle side.
6 way trailer side.
6 Way Systems, Round Plug
Round 1 1/4" diameter metal connector allows 1 or 2 additional wiring and lighting functions such as back up lights, auxiliary 12v power or electric brakes. Note: The black (sometimes red) 12v and blue electric brakes wire may need to be reversed to suit the trailer. Check with a test light or VOM. Uses: horse trailer, travel trailers, landscaping trailer, car trailer, etc.
6 way tow vehicle side.
6 way trailer side.
7 Way Systems
Round 2" diameter connector allows additional pin for auxiliary 12 volt power or backup lights. Uses: heavy duty landscaping trailer, car trailer, boat trailers, horse trailer, travel trailer, construction trailer, etc. Check with a test light or VOM.
7 way RV flat blade tow vehicle side.
7 way RV flat blade trailer side.
Jan 01, 2011 | 2001 Pontiac Montana
Jul 06, 2010 | 2008 Dodge Grand Caravan
Feb 21, 2010 | 2006 Ford F-150
Dec 16, 2009 | 2006 Dodge Grand Caravan
Aug 29, 2009 | 2004 Dodge Ram 1500
CAV
CIRCUIT
FUNCTION
1
Z13 12BK
GROUND
2
B40 12LB
TRAILER ELECTRIC BRAKE OUTPUT
3
L76 12BK/OR
TAIL LIGHT (Trailer Tow Relay in PDC)
4
A6 12RD/TN*
FUSED B(+) (40A, Always Hot, F8 in PDC)
5
L63 16DG/RD
LEFT REAR TURN SIGNAL
TRAILER TOW
6
L62 16BR/PK
RIGHT REAR TURN SIGNAL
CONNECTOR
7
L1 16VT/BK
BACK-UP LAMP
FIGURE 1: 7-Terminal Trailer Tow Connector
Jul 10, 2009 | 2001 Dodge Dakota
Mar 20, 2009 | 2005 Ford F 250 Super Duty
CAV
CIRCUIT
FUNCTION
1
Z13 12BK
GROUND
2
B40 12LB
TRAILER ELECTRIC BRAKE OUTPUT
3
L76 12BK/OR
TAIL LIGHT (Trailer Tow Relay in PDC)
4
A6 12RD/TN*
FUSED B(+) (40A, Always Hot, F8 in PDC)
5
L63 16DG/RD
LEFT REAR TURN SIGNAL
TRAILER TOW
6
L62 16BR/PK
RIGHT REAR TURN SIGNAL
CONNECTOR
7
L1 16VT/BK
BACK-UP LAMP
FIGURE 1: 7-Terminal Trailer Tow ConnectorMar 12, 2009 | 1993 Land Rover Defender
Feb 22, 2014 | 1998 Lexus LX470
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