Buick Envision II (2020-2024) Driver"s lumbar circuit

BLK WIRE BLK/BRN WIRE DOWN DRIVER FRONT SEAT BACK LUMBAR PUMP DRIVER FRONT SEAT BLADDER CONTROL MODULE DRIVER FRONT SEAT LUMBAR SWITCH ENGINE WIRING HARNESS JUNCTION BLOCK HOT AT ALL TIMES NCA WIRE RED WIRE RED/WHT WIRE RWD WHT WIRE WHT/BLU WIRE YEL/BRN WIRE