Trailer Recognition Control Unit Wiring Diagram - Pe31.19-D-2101AE

Model 906.1/2/6/7 as of 12/1/14 with code E43 (Trailer socket, 13-pin) with code E57 (Electrics for trailer socket) except code E40 (Trailer socket, 7-pin) except code E58 (Electrics for trailer socket) except code ZL3 (National version for Latin America) except code ZU7 (National version for Canada) except code ZU8 (National version for USA) 

Model 906.1/6/7 as of 12/1/14 with code E40 (Trailer socket, 7-pin) with code E58 (Electrics for trailer socket) with code ZU7 (National version for Canada) with code ZU8 (National version for USA) except code E43 (Trailer socket, 13-pin) except code E57 (Electrics for trailer socket) except code ZL3 (National version for Latin America)