Chevrolet Silverado GMT K2XX (2013-2015) instrument panel junction block Wiring diagrams

AJAR SW SIG BLK WIRE BLU/WHT WIRE BRN/GRN WIRE BRN/WHT WIRE BRN/YEL WIRE CHILD SECURITY LOCK DISABLE RELAY COMPUTER DATA LINES SYSTEM DK BLU/WHT WIRE DOOR DEAD LOCK RELAY DRIVER DOOR LOCK SWITCH GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/GRN WIRE GRY/WHT WIRE INSTRUMENT PANEL JUNCTION BLOCK LIN BUS 3 LIN BUS 4 LOGIC LT GRN/GRY WIRE PASSENGER DOOR LATCH ASSEMBLY (IN REAR OF PASSENGER FRONT DOOR) PASSENGER WINDOW SWITCH RF DR RIGHT REAR DOOR LATCH ASSEMBLY (CREW CAB: REAR OF RIGHT REAR DOOR) RIGHT REAR WINDOW SWITCH RR DR - VIO/YEL WIRE WHT/BLU WIRE YEL WIRE YEL/LT GRN WIRE

BAT POS VOLT BATT POS VOLT BLK WIRE BLK/YEL WIRE BLU WIRE BUS 12 COAX COMPUTER DATA LINES SYSTEM GMLAN SERIAL DATA GRN WIRE GRN/BRN WIRE GROUND HOT AT ALL TIMES INFO DISPLAY MODULE RADIO/HVAC DISPLAY CONTROLS INSTRUMENT PANEL JUNCTION BLOCK LEFT STEERING WHEEL CONTROLS SWITCH LOGIC LT GRN WIRE LT GRN/DK BLU WIRE LT GRN/WHT WIRE MUTE NCA WIRE NETWORK NETWORK BUS 10 NETWORK BUS 9 RADIO PRESETS STEERING WHEEL CONTROLS SWITCH RADIO VOLUME STEERING WHEEL CONTROLS SWITCH RED/GRY WIRE RED/VIO WIRE RED/YEL WIRE RIGHT INSTRUMENT PANEL FUSE BLOCK (IN RIGHT END OF DASH) RIGHT STEERING WHEEL CONTROLS SWITCH SOURCE STEERING WHEEL AIR BAG COIL STR WHL CNTRL FUSE UP DOWN USB USB 3 4 5 VOICE VOL VOL WHT/YEL WIRE YEL WIRE YEL/BLU WIRE

BAT POS VOLT BATT POS VOLT BLK WIRE BLU WIRE BUS 12 COMPUTER DATA LINES SYSTEM GMLAN SERIAL DATA GRN WIRE GRN/BRN WIRE GROUND HOT AT ALL TIMES INFO DISPLAY MODULE RADIO/HVAC DISPLAY CONTROLS INSTRUMENT PANEL JUNCTION BLOCK LEFT STEERING WHEEL CONTROLS SWITCH LOGIC LT GRN WIRE LT GRN/DK BLU WIRE LT GRN/WHT WIRE MUTE VOICE NCA WIRE NETWORK NETWORK BUS 10 NETWORK BUS 9 RADIO PRESETS STEERING WHEEL CONTROLS SWITCH RADIO VOLUME STEERING WHEEL CONTROLS SWITCH RED/GRY WIRE RED/VIO WIRE RED/YEL WIRE RIGHT INSTRUMENT PANEL FUSE BLOCK (IN RIGHT END OF DASH) RIGHT STEERING WHEEL CONTROLS SWITCH SOURCE UP DOWN STEERING WHEEL AIR BAG COIL STR WHL CNTRL FUSE VOL (-) WHT/YEL WIRE YEL/BLU WIRE

AIR BAG IND AIR BAG OFF IND AIR BAG ON IND BLK WIRE BLK/WHT WIRE BRN WIRE BRN/ORG WIRE COMPUTER DATA LINES SYSTEM DISPLAY DK BLU WIRE DK BLU/ORG WIRE DK BLU/YEL WIRE GRY WIRE GRY/ORG WIRE HI SPD GMLAN INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE (UNDER DRIVER'S SEAT) INSTRUMENT CLUSTER INSTRUMENT PANEL JUNCTION BLOCK LO SPD GMLAN SERIAL DATA LOGIC LT GRN WIRE ORG/ WIRE ORG/LT GRN WIRE ORG/VIO WIRE ORG/WHT WIRE PASS AIR BAG OFF IND PASS MOD SW SIG PASS MOD SW RETRN LOW SPD GMLAN SERIAL DATA PASS SEAT BELT IND PASS AIR BAG ON IND PASSENGER AIR BAG DISABLE INDICATOR PASSENGER INSTRUMENT PANEL AIR BAG PNK WIRE PPL RED/LT GRN WIRE ROLLOVER PROTECTION DISABLE SWITCH SD COMM ENABLE SD COMM ENABLE HI SPD GMLAN (+) GND SEAT BELT IND SEAT BELT ON IND SHORTING BAR STEERING WHEEL AIR BAG STEERING WHEEL AIR BAG COIL TAN WIRE VIO/ORG WIRE VIO/WHT WIRE WHT WIRE WHT/DK BLU WIRE WHT/ORG WIRE YEL WIRE YEL/ORG WIRE

4 HI IND CTRL GMLAN SERIAL DATA 1 (+) GMLAN SERIAL DATA 1 (-) 4 LO IND CTRL RUN/CRANK IGN 1 VOLT 5985 2500 2501 COMPUTER DATA LINES SYSTEM ACCY WAKEUP SERIAL DATA GMLAN SERIAL DATA 1 (+) GMLAN SERIAL DATA 1 (-) ACCY/ RUN CRNK FUSE AWD IND CTRL NEUTRAL IND CTRL 2 HI IND CTRL BLK WIRE BLK/ GRY WIRE BLK/ VIO WIRE BLU/GRY WIRE BRN WIRE BRN/BLK WIRE COMPUTER DATA LINES SYSTEM COMPUTER DATA LINES SYSTEM 1553 1552 1342 550 DK BLU WIRE DK BLU/YEL WIRE FRONT AXLE ENGAGEMENT ACTUATOR (ON REAR OF FUSE FUSE BLOCK (LOWER LEFT SIDE OF DASH) GRY/BLK WIRE GRY/LT GRN WIRE GRY/PPL WIRE GRY/RED WIRE HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED INSTRUMENT CLUSTER INSTRUMENT PANEL JUNCTION BLOCK LOGIC LT GRN/BLK WIRE MTR COUNTER CLOCKWISE CTRL MTR CLOCKWISE CTRL BATT + GND POWER DISTRIBUTION SYSTEM RED/GRY WIRE SERIAL DATA TRANS IGN FUSE TRANSFER CASE SHIFT CONTROL MODULE (LOWER LEFT SIDE OF DASH) TRANSFER CASE) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) VIO WIRE VIO/BLK WIRE VIO/LT GRN WIRE VIO/WHT WIRE VIO/YEL WIRE WHT WIRE WHT YEL/ WIRE WHT/GRN WIRE WHT/LT GRN WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE YEL/BRN WIRE YEL/GRY WIRE YEL/VIO WIRE YEL/WHT WIRE

2-HI IND 4-HI IND 4-LO IND BLK WIRE BLK/LT GRN WIRE BLU/GRY WIRE BODY CONTROL MODULE (LOWER LEFT SIDE OF DASH) BRN WIRE BRN/BLK WIRE COMPUTER DATA LINES SYSTEM DATA 1 (+) DK BLU WIRE DK BLU/YEL WIRE ENGINE BLOCK) ENGINE CONTROL MODULE (LEFT FRONT OF ENGINE COMPT, NEAR FAN SHROUD) GRY/LT GRN WIRE GRY/RED WIRE IGN 3 ILL INSTRUMENT PANEL JUNCTION BLOCK LOW REF LT GRN/BLK WIRE NEUTRAL IND RED/GRY WIRE SERIAL SERIAL DATA (-) (1) SNSR SIG TRANSFER CASE MOTOR (ON TRANSFER CASE) TRANSFER CASE SHIFT CONTROL SWITCH (ON TOP LEFT OF TRANSFER CASE) TRANSMISSION OUTPUT SHAFT SPEED SENSOR (IN TRANSMISSION) VEH SPD VEH SPD SNSR VIO WIRE VIO/BRN WIRE VIO/LT GRN WIRE VIO/WHT WIRE WHT WIRE WHT/LT GRN WIRE YEL WIRE YEL/BRN WIRE YEL/GRY WIRE YEL/VIO WIRE

1 2 3 4 5 6 7 8 9 10 11 12 BATT POSITIVE VOLT BATT POSITIVE VOLT BK USB BLK WIRE BLU/VIO WIRE BRN WIRE BRN/GRY WIRE COMPUTER DATA LINES SYSTEM ENABLE SIG ENTERTAINMENT REMOTE GRN/WHT WIRE GRY/VIO WIRE HOT AT ALL TIMES HUMAN MACHINE INTERFACE CONTROL MODULE INFO DISPLAY MODULE INSTRUMENT PANEL JUNCTION BLOCK LT GRN WIRE LT GRN/YEL WIRE LVDS MEDIA DISC PLAYER MOST CONTROL LOW SPEED GMLAN SERIAL DATA NCA WIRE RED/LT GRN WIRE RED/VIO WIRE RIGHT INSTRUMENT PANEL FUSE BLOCK (IN RIGHT END OF DASH) RSE FUSE SIG GND USB WHT WIRE WHT/GRN WIRE WHT/VIO WIRE YEL WIRE

AUDIO/VIDEO INPUT ADAPTER AUXILIARY AUDIO AUXILIARY VIDEO HI SIG AUXILIARY VIDEO LO SIG BATT POSITIVE VOLT BLK WIRE BLU/VIO WIRE BRN WIRE BRN/GRY WIRE COMMON SIG GRN/WHT WIRE HEADPHONE HOT AT ALL TIMES INSTRUMENT PANEL JUNCTION BLOCK LEFT AUXILIARY AUDIO SIG 1 LOGIC LR SEAT AUDIO HEADPHONE SIG NCA WIRE RDO FUSE REAR SEAT AUDIO RED/VIO WIRE RIGHT AUXILIARY AUDIO SIG 1 RIGHT INSTRUMENT PANEL FUSE BLOCK (IN RIGHT END OF DASH) RR SEAT AUDIO HEADPHONE SIG USB WHT WIRE YEL WIRE

18 20 GMLAN SER DATA (+) GMLAN SER DATA (-) BCM 3 FUSE BLK WIRE BLK/ORG WIRE BRAKE FLUID LEVEL SWITCH (ON BRAKE MASTER CYLINDER RESERVOIR) BRAKE IND BREAKOUT) BRK FLUID LVL COMPUTER DATA LINES SYSTEM DISPLAY DK BLU WIRE DK BLU/YEL WIRE DLIS FUSE DRIVER SEAT BELT SWITCH DRIVER SEAT BELT BUCKLE DRIVER SEAT POSITION SENSOR ELECTRONIC BRAKE CONTROL MODULE (ON LEFT SIDE OF FRAME ASSEMBLY) HI SPD GMLAN SERIAL DATA (-) (1) HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED IGNITION SWITCH INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE (UNDER DRIVER'S SEAT) INSTRUMENT CLUSTER INSTRUMENT PANEL JUNCTION BLOCK IPC IGN/SDM IGN FUSE KEY-IN IGNITION SWITCH LEFT INSTRUMENT PANEL FUSE BLOCK (LOWER LEFT LO SPD GMLAN SERIAL DATA LOGIC LOW TIRE PRESSURE IND LT GRN WIRE LT GRN/GRY WIRE NCA WIRE OFF ORG/BLU WIRE ORG/BRN WIRE ORG/GRN WIRE ORG/VIO WIRE PASS SEAT BELT IND PASSENGER AIR BAG DISABLE INDICATOR PASSENGER SEAT BELT SWITCH PASSENGER SEAT BELT BUCKLE PASSENGER SEAT POSITION SENSOR RED/BLU WIRE RED/GRY WIRE RUN WIRE RUN/CRANK SEAT BELT IND SEAT BELT ON IND SIDE OF DASH) VIO/BLK WIRE VIO/WHT WIRE WHT WIRE WHT/VIO WIRE

1 2 MOST SER DATA (-) MOST SER DATA (+) 14 25 RF DR AJAR SW SIG LF DR AJAR SW SIG 24 25 GMLAN SERIAL DATA (-) GMLAN SERIAL DATA (+) 2500 2501 COMPUTER DATA LINES SYSTEM AJAR SW SIG BATT POS VOLT BLK WIRE BODY CONTROL MODULE (LOWER LEFT SIDE OF DASH) COMPUTER DATA LINES SYSTEM DK BLU WIRE DK BLU/VIO WIRE DRIVER DOOR LATCH ASSEMBLY (IN REAR OF DRIVER FRONT DOOR) DRIVER WINDOW MOTOR (INSIDE DRIVER'S DOOR) GRN/YEL WIRE GRY WIRE GRY/VIO WIRE HEAD PARK AUTO OFF HEADLAMP SWITCH INSTRUMENT PANEL JUNCTION BLOCK LEFT REAR DOOR LATCH ASSEMBLY (CREW CAB: REAR OF LEFT REAR DOOR) LEFT REAR WINDOW SWITCH LF DOOR AJAR SW SIG LIN BUS 3 LIN BUS 4 LOGIC LR DR LR DR AJAR SW SIG LT GRN/BRN WIRE LT GRN/GRY WIRE OFF/RUN/CRANK VOLT PARK BRAKE SW SIG PARK BRAKE SWITCH (ON PARK BRAKE PEDAL ASSEMBLY) PASSENGER DOOR LATCH ASSEMBLY (IN REAR OF PASSENGER FRONT DOOR) PASSENGER WINDOW SWITCH RADIO RED/GRY WIRE RF DR RIGHT REAR DOOR LATCH ASSEMBLY (CREW CAB: REAR OF RIGHT REAR DOOR) RIGHT REAR WINDOW SWITCH RR DR AJAR SW SIG W/ POWER OPERATED WINDOW W/O POWER OPERATED WINDOW WHT WIRE WHT/GRN WIRE WHT/VIO WIRE