Trailer tow circuit for Porsche Cayenne I facelift (2007-2010)

13 4 16 5 7 3 STOPLIGHT 2 3 4 1 TERM 30 STOPLIGHTS ELEC BRAKE TERM 31 3 6 5 4 1 7 2 ELEC BRAKE BACKUP LIGHT 6 1 2 BRAKELIGHT SWITCH CAN HIGH CAN LOW BLK WIRE BLK/BLU WIRE BLK/RED WIRE BLU WIRE BRN WIRE COMPUTER DATA LINES SYSTEM FUSE 1 FUSE 19 FUSE 3 FUSE 41 FUSE 5 GRN WIRE HOT AT ALL TIMES HOT W/ DIAGNOSTICS RELAY 15 ENERGIZED ORG/BRN WIRE ORG/GRN WIRE PREPARATION BRAKE BOOSTER PSM CONTROL UNIT (RIGHT REAR OF ENGINE COMPT) REAR COMFORT SYSTEMS CONTROL UNIT (RIGHT REAR CARGO AREA) RED WIRE RED/BLK WIRE RED/WHT WIRE RED/YEL WIRE RFS TRAILER RIGHT FUSE BOX (UNDER RIGHT SIDE OF DASH) RIGHT REAR LIGHTS RIGHT REAR TURN SIG LEFT REAR TURN SIG RIGHT TURN SIGNALS/BRAKE LEFT TURN SIGNALS/BRAKE BACKUP SIGNAL TERM 31 STOPLIGHT TERM 30 SWITCHED TRAILER CONNECTION DEVICE TRAILER POWER SOCKET YEL WIRE