GMC Sierra III (2013-2015) Anti-lock brakes circuit

ABS PUMP FUSE ABS VLV FUSE BLK WIRE BLK/YEL WIRE BRAKE PRESSURE MODULATOR BRAKE VACUUM SNSR LOW REF BATT POSITIVE VOLT CMBD VHCE IN SNSR SPLY VOLT BRAKE FLUID LEVEL SNSR SIGL COMPUTER DATA LINES SYSTEM COMPUTER DATALINES SYSTEM DK BLU WIRE DK BLU/YEL WIRE ELECTRONIC BRAKE CONTROL MODULE (ON LEFT SIDE OF FRAME ASSEMBLY) GMLAN GMLAN SERIAL DATA (-) (1) GMLAN SERIAL DATA (+) (1) GRY WIRE GRY/BLK WIRE GRY/BRN WIRE GRY/WHT WIRE GRY/YEL WIRE HOT AT ALL TIMES INSTRUMENT PANEL JUNCTION BLOCK LEFT FRONT WHEEL SPEED SENSOR (ON LEFT FRONT STEERING KNUCKLE) LEFT REAR WHEEL SPEED SENSOR (ON LEFT REAR BRAKE BACKING PLATE) LT GRN/BRN WIRE LT GRN/GRY WIRE NCA WIRE RED/VIO WIRE RED/YEL WIRE SENS SPLY VOLT SERIAL DATA COMM ENABLE LF RR WHL SPD SNSR SPLY VOLT LF REAR WHEEL SPD SNSR SIG STEERING ANGLE SENSOR (ON STEERING COLUMN) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) VIO WIRE WHT WIRE WHT/DK BLU WIRE YEL WIRE YEL/RED WIRE YEL/VIO WIRE

25 24 19 GMLAN DATA(+) GMLAN DATA(-) SNSR LOW REF 2500 2501 522 COMPUTER DATA LINES SYSTEM 39 40 HI SPD GMLAN SERIAL DATA + HI SPD GMLAN SERIAL DATA - 5361 (OR 5066) ABS BLK WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/WHT (OR BLK) WIRE BLK/WHT WIRE BLK/YEL WIRE BLOCK BODY CONTROL MODULE (BCM) (LOWER LEFT SIDE OF DASH) BRAKE APPLY SENSOR LOW REF BRAKE APPLY SNSR SIG BRAKE APPLY SNSR SPLY VOLT BRAKE ESC ESC OFF IND IND IND IND BRAKE FLUID LEVEL SWITCH (ON BRAKE MASTER CYLINDER RESERVOIR) BRAKE PEDAL POSITION SENSOR (BEHIND BRAKE PEDAL ASSEMBLY) BRK APPL SENS SIG BRK APPL SPL VOLT BRN WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK BLU/VIO WIRE DK BLU/YEL WIRE DRIVER INFORMATION CENTER DISPLAY ENGINE CONTROL MODULE (ECM) (LEFT FRONT OF ENGINE COMPT) GRN WIRE GRY WIRE GRY/BRN WIRE GRY/RED WIRE GRY/YEL WIRE HOT W/ IGNITION MAIN RELAY ENERGIZED INSTRUMENT CLUSTER INSTRUMENT PANEL JUNCTION INSTRUMENT PANEL MULTI- FUNCTION SWITCH IPC IGN/ SDM IGN FUSE LEFT INSTRUMENT PANEL FUSE BLOCK (LOWER LEFT SIDE OF DASH) LOGIC LT GRN/BLK WIRE LT GRN/GRY WIRE NCA WIRE NEAR FAN SHROUD) PARK BRAKE SWITCH (ON PARK BRAKE PEDAL ASSEMBLY) POWER DISTRIBUTION SYSTEM PRK BRK SW RED WIRE RIGHT REAR WHEEL SPEED SENSOR (ON RIGHT REAR BRAKE BACKING PLATE) TRACTION CONTROL OFF IND TRACTION CONTROL OFF SWITCH TRACTION SW VIO WIRE VIO/BLK WIRE WHT WIRE WHT/GRN WIRE YEL WIRE YEL/RED WIRE YEL/VIO WIRE