PWIS3 programming for brake controller
#1
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My shop installed trailer hitch and controller. But there is one final programming tweak with a PWIS3 needed so that the car sees the trailer brakes and lights. Without this the Cayenne/18 show a fault.
Using 7 Pin brake test plug does not show this error.
My 2018 sees the trailer, turns off rear view proximity sensor, lights, flashers and all of that work. (same as with 7 pin test plug) But it is only the trailer brakes and lights that it does not see.
For this I am told a PWI3 is needed and my shop doesn't have that.
My local dealer in Manhattan has no clue how to do this. And I am not comfortable having the try to do this. Especially without an actual trailer to test on.
Can anyone make a suggestion for a dealer / shop in the greater NY metro area that has the PWIS3 and knows how to do this?
Trailer I will pull all have LED lights. Trailer or Featherlight depending on what I am pulling. Any additional cautionary notes?
/Dan
Using 7 Pin brake test plug does not show this error.
My 2018 sees the trailer, turns off rear view proximity sensor, lights, flashers and all of that work. (same as with 7 pin test plug) But it is only the trailer brakes and lights that it does not see.
For this I am told a PWI3 is needed and my shop doesn't have that.
My local dealer in Manhattan has no clue how to do this. And I am not comfortable having the try to do this. Especially without an actual trailer to test on.
Can anyone make a suggestion for a dealer / shop in the greater NY metro area that has the PWIS3 and knows how to do this?
Trailer I will pull all have LED lights. Trailer or Featherlight depending on what I am pulling. Any additional cautionary notes?
/Dan
Last edited by dan212; 11-30-2023 at 02:49 PM.
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#5
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I'll give Manhattan Motorcars due credit. They did the programming and it was perfect. Guy I got trailer from tried for years to get the coding right with various experts. He bought a a dongle to simulate mode load. But my car was programmed perfectly and lit everything it should.