Wire colour code

SOURCE: 1996 Dodge Ram Factory Trailer Wiring Schematic

all you need is a cheap continuity tester, any one to help tap on the brakes..7pin is just like the 4 pin w/extra power wire for acc.lites,electric brakes.when you buy the 7pin rec.,comes w/wiring schematic standard to all trailer rec.- you can do it..kev-mn.

Ned C Cook

• 3433 Answers
• Posted on May 06, 2009

SOURCE: looking for color code (diagram) - 7 wire trailer harness/wiring

If you haven't purchased the plugs yet. The wire color codes should be included in the package.

• If you are using used plugs ck the back of the plugs for color or function of wire
• Wht - ground
• red - stop
• blue - accessory/aux
• brown - tail
• black - Marker
• grn - left turn
• yellow - right turn

SOURCE: Wiring diagram

If you are going from a 4 pin on your trailer to the 7 pin on the truck. You need to go to parts store or a department store (ex Wal Mart) and look in trailer section and find the adapter. Thats what I did. Also Remember if your lights don't work on trailer, check the plug to make sure its tight or check the fuse under your drivers side rear seat for that fuse box.

SOURCE: I need a wiring diagram for a 7 pin trailer board plug

Here's one
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

SOURCE: Tow bar trailer socket wiring connection point to car wiring?

The connectors for towing wire harnesses on foresters are generally on the passenger side, below the rear taillight inside the cargo space. some require pulling up the foam block that is between the spare tire compartment and the taillight. Check where you replace the tailights from inside the car, if there isn't a matching connector hanging out there, check around the spare tire compartment, see if you can remove the carpeted foam block next to the compartment and find the plug under there.