SAE J560 is the US standard describing electrical connections between truck and trailer (heavy duty vehicles). It includes primary connectors for lighting and auxiliary connectors for supplemental functions.
What is a J560?
The standard SAE J560 for trailer connectors was originally issued in 1951 to create a standard in the commercial vehicle industry for the electrical wiring between heavy-duty truck and trailer. The plug for SAE J560 is physically identical to the trailer connector according ISO 1185.
What is a 7 way receptacle?
7-Way Nylon Receptacles – Made of non-corrosive, reinforced Nylon. – Tramec Sloan Nylon Receptacles feature a direct wired ground for the safest possible connections. – Tramec Sloan recommends ring terminals for the connection between wires and receptacle pins for positive mechanical connections.
What does a 7 pin connector do?
The 7-Way Trailer Plug is around 2″ diameter connector that allows an additional pin for an auxiliary 12-volt power or backup lights. It is usually used for towing heavy-duty cargo trailers, aluminum trailers, dump trailers, utility / landscape trailers, equipment trailers, open car haulers and enclosed car haulers.
What does TM stand for on a trailer plug?
NOTE: Identify contacts by looking into the open end of plug or socket.
| Plug | Color | Description |
|---|---|---|
| LT | YELLOW | Left Turn Signal |
| RT | GREEN | Right Turn Signal |
| TM | BROWN | Tail Lights |
| CENTER | RED | Charge Line |
What is the difference between a 4 pin and 7 pin?
The only real functional difference between them is that on part # 37185 the 4-pole trailer connector is located to the side of the 7-way, rather than under it as with # HM47180. Both adapters plug in at an existing 4-pole vehicle connector and re-format those lighting signals to the 7-way configuration.
What color wire goes where on a 7 pin trailer plug?
What is the Color Code for 7-Way Trailer Wiring?
- Green: Right turn/brake light.
- Yellow: Left turn/brake light.
- Brown: Tail/running lights.
- White: Ground wire.
- Blue: Brake controller output.
- Black: Battery hot lead.
- Purple: Reverse lights.
What is BK on a trailer plug?
BK = output from brake controller (if no brake controller is installed, this light will not light up) BU = reverse lights (if this circuit is not connected on the vehicle it will not light up) RT = Right Turn.
What does TM mean on a 7 pin trailer plug?
Can I replace a 7 pin Ficm with a 4 pin?
Yes you can use either one in any 6.0 however the half shells aren’t compatible with each other for obvious reasons lol one has 7 pins and the other has 4 pins.
