Porsche Cayenne I (2002-2007) Trailer tow circuit

BACKUP LIGHT BACKUP SIGNAL BLK WIRE BLK/BLU WIRE BLK/RED WIRE BLU WIRE BRN WIRE CAN HIGH CAN LOW BRAKELIGHT SWITCH COMPUTER DATA LINES SYSTEM ELEC BRAKE FUSE 1 FUSE 19 FUSE 3 FUSE 41 FUSE 5 GRN WIRE HOT AT ALL TIMES HOT IN RUN AND START LEFT REAR TURN SIG LEFT TURN SIGNALS/BRAKE 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 RIGHT TURN SIGNALS/BRAKE STOPLIGHT TERM 30 STOPLIGHTS ELEC BRAKE TERM 31 TERM 30 SWITCHED TERM 31 TERM 31 CAN LOW CAN HIGH TRAILER CONNECTION DEVICE TRAILER POWER SOCKET YEL WIRE