Trailer tow circuit for Jeep Grand Cherokee WK2 (2010-2013)

B(+) BACKUP LAMPS CIRCUIT BLK WIRE BRAKE PROVISION MODULE BRN WIRE BUS - CIRCUIT BOARD COMPUTER DATA LINES SYSTEM CTRL DK GRN WIRE EXTERIOR LAMPS CIRCUIT GRY/RED WIRE HOT AT ALL TIMES IOD SNSE LT GRN WIRE LT TTOW NCA WIRE RED WIRE RLY RT TTOW STP LMP SIG TOTALLY INTEGRATED POWER MODULE TRAILER TOW 7 WAY WIRING TTOW ELEC BRK OUTPUT WHT/GRY WIRE WHT/LT GRN WIRE WHT/ORG WIRE WHT/VIO WIRE YEL WIRE