Back-up lamps circuit for Chevrolet TrailBlazer I (2001-2006)

13 12 34 72 TR SW P TR SW B 4.2L 5.3L BACKUP FUSE 27 BACKUP LAMP BATTERY B/U LMP VOLT BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (BENEATH LEFT REAR SEAT, ON REAR FUSE BLOCK) DK GRN WIRE GRN WIRE GRY WIRE HOT AT ALL TIMES HOT IN RUN OR START LEFT TAILLAMP CIRCUIT BOARD LT GRN WIRE MIRRORS SYSTEM (AUTOMATIC DAY/ NIGHT MIRROR) NCA WIRE PARK/ NEUTRAL POSITION SWITCH PARK/NEUTRAL POSITION SWITCH (ON LEFT SIDE OF TRANSMISSION, ABOVE FLUID PAN) PNK WIRE REAR FUSE BLOCK (BELOW LEFT REAR SEAT) REAR FUSE BLOCK (BELOW LEFT REAR SEAT) TBC 5 FUSE 32 RIGHT TAILLAMP BACKUP LAMP CIRCUIT BOARD SER DATA SERIAL DATA TR SW A TR SW C TRAILER CONNECTOR (LOWER LEFT SIDE OF ENGINE) TRLR B/U FUSE 4 UNDER- HOOD FUSE BLOCK (ON LEFT SIDE OF ENGINE COMPT) WHT WIRE YEL WIRE