Seems to be correct, a few question just to be sure:The ground of the arduino board and the motorbike are connected?The arduino tx go to the L9636 tx? (them don t have to be swapped)Are you sure the L9636 is in the right position? The position of pin 1 is decided by this little linehttps://postimg.cc/bd7471rjIf all of this are correct we should wait for the logic analyzer and then put a voltage divide to the k-line and check itBy the way in the future I suggest you to use adapters like these for the not-DIP packages, i bought a few of these with various size and them are perfecthttps://images.app.goo.gl/FDRybwevtFbtuHGN6
It's not a L9636 chip though, it's the 9637D.
Im pretty positive this should work
it is the same! i didn't wrote the last "D"Me too