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Originally Posted by UT_BRZ
I looked into doing the T01 harness, but in my research there were quite a few issues with the 2017 so I built my own. In comparing what I did to the T01 harness, it is pretty much the same outcome. Hope these help.
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Very helpful, thanks. The general idea of how yours is wired (as far as how things are connected to the 28 pin harness) is how I connected things to the T01 harness, so it must be something weird going on within the T01 harness that is causing the camera and gauges to refuse to work. One thing that stands out is that the OBD2 harness with the T01 has 3 wires/pins populated, but I can see from your pictures that only 2 are needed. What parts exactly did you buy to build that harness? Would you like to build one for me? Lol
Edit: Idatalink informed me that the 3rd OBD wire is for the TPMS reading.
Edit 2: I think it just occurred to me why the camera is not switching on when going into reverse but the black screen pops up on the head unit... I believe that the reverse signal wire from pin 2 AND the power wire for the camera need to be connected to the reverse wire from the head unit. Is it safe to directly T the 6+volt power wire to both pin 11 and pin 2 or how exactly should this be accomplished?