GMC Sierra Classic 3500 (2007-2007) low ref ref low wiring diagram

12 13 14 PPL 19 20 21 22 23 24 25 PNK PNK WIRE 3-2 SS LOW REF A/C SYSTEM B+ CLS 2 DATA BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BELOW STEERING COLUMN) BRN/WHT WIRE CENTRAL SEQUENTIAL FUEL INJECTION CFAN RLY LO INJ 5 CTRL CKP SIG COOLING FANS SYSTEM DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE ENGINE OIL PRESSURE (EOP) SENSOR FUEL INJECTORS FUSE FUSE FUSE GRY WIRE HOT AT ALL TIMES HOT IN ACCY, RUN, START HOT IN RUN, START I/P FUSE BLOCK (LOWER LEFT SIDE OF DASH) IGN 0 FUSE INJ 4 CTRL LOW REF LOW REF REF LOW LOW REF SENS GND LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE NCA WIRE ORG/ WIRE ORG/BLK WIRE PCMB FUSE PNK 1 2 3 4 5 WIRE PNK 17 18 WIRE PNK PNK WIRE PNK WIRE PNK/BLK WIRE POWER DISTRIBUTION SYSTEM POWERTRAIN CONTROL MODULE (PCM) (LEFT FRONT OF ENGINE COMPT) PPL PPL PPL PPL/WHT WIRE PRND A BRK SW PRND P CLUTCH SW INJ 1 CTRL INJ 3 CTRL PPL PRND B CMP ECT SIG IGN INJ 2 CTRL INJ 6 CTRL RANGE B RANGE C IGN B+ REF LOW RED WIRE REF LOW GND RLY CTRL GND SENS GND GND SENSOR SIG STARTING SYSTEM TAN WIRE TAN/WHT WIRE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENG COMPT) WHT WIRE YEL WIRE YEL/BLK WIRE