Is this the plug for trailer lights? (1 Viewer)

[ParadiseCruiser]

E -

The T4/T5 connectors are a male/female combination that plug together. The two wires that pass thru are RH directional, and LH directional. This is where the commercial trailer harnesses pick up the signal for the directionals.

The commercial harnesses presume that your trailer uses a single filament/bulb in each corner for stop light/directional light (apart from the filament/bulb for the tail light). Since the Land Cruiser uses a separate bulb - and separate signal - for stop light and directional, the two have to be "blended" together (for lack of a better word...) into a single signal to run aft to the trailer lights without frying the works. That is the purpose of the converter.

The only case where you wouldn't need a converter is if your trailer had three separate bulbs/filaments on each side, one each for tail light, directional, and stop light. Then, of course, the standard harnesses would not work quite right...

Cheers, R -

 

[MoJ]

Hail to the trailer wiring master. Had no idea. Dude at the auto store just said, "make sure and get the kit with the converter."

 

[e9999]

went back to have a look at the FSM. Ron is indeed right. I recalled this incorrectly. T5 and T6 are shown connected on the actual wiring diagram and parts location diagram. Interesting.

FWIW, T4 has 3 lines, T5 and T6 only 2.

T4 is a black connector. Green wire going in position 1 (top) is Tail (and stop) light. Green and White going to 2 is (tail and) stop light. Red and black going to 3 is backup light.

On T5/T6 (also black), green and yellow is RHS, green and black is LHS.

sorry about confusion

 

[snowcruiser]

Scott

Does this 4 to 7 pin convertor that allows trailers with brakes to be used simply apply the signal that goes to the Cruiser's brake lights to go to the trailer's brakes? Do you run a brake controller also? If not how do you adjust the braking pressure for different trailer loads? Cheers

 

[e9999]

you need a controller. It'll have the adjustment.
See other recent thread.
E