1 – Pin 3 (white) and Pin 5 (black) are crossed. D.I.N. is a european ’standard’ originating from Germany.The D.I.N. abbreviation stands for “Deutshe Industrie Norm”.
2 – Pin 2 (ground) can be any color but is usual green.
3 – In some 5-wire cable the color yellow is replaced by brown.
4 – If your trainer cord does not work, try reversing the black and white wire again.(one plug only!)