Trailer tow circuit for Buick Envision II (2020-2024)
Trailer tow circuit
AUXILIARY PARK LAMP RLY CTRL
BLK WIRE
BRN WIRE
ENGINE WIRING HARNESS JUNCTION BLOCK
GRN WIRE
GRN/BRN WIRE
GRN/VIO WIRE
GRY/BRN WIRE
HOT AT ALL TIMES
LEFT TRAILER STOP/ TURN SIGNAL LAMP RELAY
LIGHTING CONTROL MODULE (RIGHT SIDE OF DASH)
LR TRAILER STOP/ TURN LAMP CTRL
PARKING LAMP RELAY
RIGHT TRAILER STOP/ TURN SIGNAL LAMP RELAY
RR TRAILER STOP/ TURN LAMP CTRL
TRAILER WIRING HARNESS CONNECTOR
WHT WIRE
WHT/BRN WIRE
YEL WIRE
YEL/BLU WIRE
YEL/GRY WIRE
