Chevrolet Silverado 1500 (2000-2012) 35 55 21 37 57 51 72 low ref ect sens sig low ref Wiring diagram

35 55 21 37 57 51 72 LOW REF ECT SENS SIG LOW REF 54 41 MED SPD FAN HI SPD FAN PPL A/C LOW PRESSURE SENSOR BATT POS VOLT BLK WIRE BODY CONTROL MODULE (BCM) (LOWER LEFT SIDE OF DASH) BRN WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK GRN WIRE ENG FUSE 4 ENGINE CONTROL MODULE (ECM) (LEFT FRONT OF ENGINE COMPT) ENGINE COOLANT TEMPERATURE (ECT) SENSOR (ON TOP OF ENGINE) GROUND GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT W/ PWR/TRN RELAY ENERGIZED HVAC BATT FUSE 39 HVAC BLWR FUSE 70 HVAC-IGN FUSE 55 LOW REF LOW SPD FAN LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE MTR SPD CTRL ORG/BLK WIRE PNK WIRE POWER DISTRIBUTION SYSTEM PPL PPL/WHT WIRE RED WIRE RED/BLK WIRE RED/WHT WIRE RIGHT I/P JUNCTION BLOCK (IN RIGHT END OF DASH) RLY CTRL RUN/ CRNK RELAY SENS SIG DATA BUS - DATA BUS + TAN WIRE TAN/BLK WIRE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) WHT/BLK WIRE YEL WIRE YEL/BLK WIRE