Chevrolet Silverado GMT K2XX facelift (2015-2019) sens low ref Wiring diagrams

4.3L FLEX FUEL 5 VOLT REF 5.3L FLEX FUEL, 6.2L 6.6L TURBO DIESEL ABS IND. BASE EQUIPMENT BLK WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/WHT WIRE BLU/VIO WIRE BLU/YEL WIRE BODY CONTROL MODULE BPP SENS LO REF BPP SENS SIG BRAKE IND BRAKE PEDAL POSITION SENSOR (BEHIND BRAKE PEDAL ASSEMBLY) COMPUTER DATA LINES SYSTEM DESCENT SW DK BLU WIRE DK BLU/VIO WIRE DRIVER INFORMATION CENTER DISPLAY ENGINE CONTROL MODULE EQUIPMENT) ESC IND ESC OFF IND EXCEPT BASE EXCEPT BASE EQUIPMENT GMLAN DATA GMLAN DATA - (1) GRN/GRY WIRE GRY/BRN WIRE GRY/RED WIRE GRY/YEL WIRE HILL DESCENT CONTROL SWITCH HOT AT ALL TIMES INSTRUMENT CLUSTER INSTRUMENT PANEL JUNCTION BLOCK INSTRUMENT PANEL MULTI- FUNCTION SWITCH IPC FUSE LEFT INSTRUMENT PANEL FUSE BLOCK LOGIC NCA WIRE PARK BRAKE SWITCH PRK BRK SW SIG RED/GRY WIRE RIGHT FRONT WHEEL SPEED SENSOR RIGHT REAR WHEEL SPEED SENSOR SENS LOW REF STOP LP SW SIG TRACTION CONTROL OFF IND TRACTION CONTROL OFF SWITCH TRACTION SW VIO WIRE WHT WIRE WHT/GRN WIRE YEL WIRE

6.0L 6.6L A/C COMPRESSOR A/C COMPRESSOR CLUTCH A/C COMPRESSOR SOLENOID VALVE AIR INLET DOOR ACTUATOR AIR TEMP DOOR CONTROL AIR TEMP DOOR POSITION SIG AMBIENT AIR TEMPERATURE SENSOR BLK WIRE BLK/BLU WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BRN WIRE BLU/GRY WIRE BLU/YEL WIRE BRN/BLU WIRE BRN/GRN WIRE COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY ENGINE COOLANT LEVEL SWITCH ENGINE COOLANT TEMPERATURE GAUGE EVAP CORE TEMP SENSOR SIG GRN WIRE GRY WIRE GRY/BLK WIRE GRY/GRN WIRE GRY/RED WIRE GRY/VIO WIRE HVAC CONTROL MODULE (BEHIND UPPER GLOVE BOX) INSTRUMENT CLUSTER LEFT AIR TEMPERATURE DOOR ACTUATOR LEFT MODE DOOR ACTUATOR LOGIC LOW COOLANT LEVEL IND LOWER LEFT AIR TEMP SENS SIG LOWER RIGHT AIR TEMP SENS SIG MODE 1 VALVE POSITION SENSOR SIG MODE DOOR CONTROL MOST SERIAL DATA (+) PASS AIR TEMP DOOR CTRL PASS AIR TEMP DOOR POSITION SIG PASS AIR TEMP MOTOR CTRL RECIRCULATION DOOR CONTROL RECIRCULATION DOOR POSITION SIG RED WIRE RIGHT AIR TEMPERATURE DOOR ACTUATOR SENS LOW REF TEMP TEMP SENS SENS LOW SIG REF UPPER LEFT AIR TEMP SENS SIG UPPER RIGHT AIR TEMP SENS SIG VIO/GRN WIRE WHT WIRE WHT/BLK WIRE WHT/GRN WIRE WHT/LT GRN WIRE YEL WIRE YEL/BLK WIRE YEL/BRN WIRE

5 VOLT REF 5 VOLT REF (1) TRACTION CTRL SW SIG AMBIENT LIGHT SENS SIG ANTI-LOCK BRAKES SYSTEM ANTI-LOCK BRAKES, CRUISE CONTROL, EXTERIOR LIGHTS SYSTEMS ANTI-LOCK BRAKES, HEADLIGHTS, INSTRUMENT CLUSTER SYSTEMS BACKUP LAMP RLY CTRL BATT POSITIVE VOLT BATTERY POSITIVE VOLTAGE BCM 1 FUSE BCM 2 FUSE BCM 3 FUSE BCM 4 FUSE BCM 5 FUSE BCM 6 FUSE BCM 7 FUSE BCM 8 FUSE BLK WIRE BLK/GRN WIRE BLK/VIO WIRE BLK/YEL WIRE BLU WIRE BLU/BRN WIRE BLU/GRY WIRE BLU/RED WIRE BLU/VIO WIRE BLU/WHT WIRE BODY CONTROL MODULE (LOWER LEFT SIDE OF DASH) BRN WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE CARGO LAMP SW SIG CHILD LOCKOUT INDICATOR CTRL COMPUTER DATA LINES SYSTEM CRUISE CONTROL SYSTEM CRUISE/ETC/TCC BRAKE SIG CURRENT SENS LOW REF DIMMER SW LOW REF DIMMER SW SIG DK BLU WIRE DK BLU/VIO WIRE DOOR LOCKS, ANTI-THEFT SYSTEMS DRV DR LOCK SW LOCK SIG DRV DR LOCK SW UNLCK SIG EXHAUST BRAKE SW SIG SECURITY LOCK RLY CTRL EXTERIOR LIGHTS SYSTEM HEADLIGHTS SYSTEM EXTERIOR LIGHTS, INTERIOR LIGHTS SYSTEMS DOOR LOCKS, ANTI-THEFT SYSTEMS FOG LAMP RLY CTRL FRONT FOG LAMP SW SIG GRN/BRN WIRE GRN/GRY WIRE GRN/WHT WIRE GROUND GRY WIRE GRY/GRN WIRE GRY/RED WIRE GRY/WHT WIRE HAZARD SWITCH SIG HEADLAMP OFF SIG CTRL HEADLAMP SW ON SIG HEADLAMP SW PARK LAMP SIG HEADLIGHTS SYSTEM HIGH BEAM RLY CTRL HORN RLY CTRL HORNS SYSTEM HOT AT ALL TIMES INDICATOR DIMMING CTRL INTERIOR LAMP DEFEAT SW SIG LED BACKLIGHT DIMMING CTRL LEFT INSTRUMENT PANEL FUSE BLOCK LEFT TRAILER TURN SIG LAMP LIGHTING CONTROL 2 LT GRN/GRY WIRE NETWORK BUS 4 OUT OF PARK SIG PARK BRK SW SIG PARK LAMP RLY CTRL POWER DISTRIBUTION SYSTEM INTERIOR LIGHTS SYSTEM RED/BRN WIRE RED/DK BLU WIRE RED/GRY WIRE RED/LT GRN WIRE RED/VIO WIRE RED/WHT WIRE REMOTE FUNCTION ACTR CTRL REMOTE FUNCTION ACTR RTN REMOTE FUNCTION ACTR TRANSMIT SIG RIGHT FRONT DRL CTRL RIGHT INSTRUMENT PANEL FUSE BLOCK RIGHT TRAILER TURN SIG LAMP RUN IGNITION 3 VOLT SEATS SYSTEM SECURITY INDICATOR CONTROL SENS LOW REF SERIAL DATA (+) (1) REMOTE FUNC ACTR RECEIVE SIG SERIAL DATA (-) (1) STARTING/CHARGING SYSTEM STOP LAMP SW SIG STOP/TURN LAMP CTRL TRAILER BRAKE APPLY SIG TURN SIGNAL LAMP CTRL VIO/BRN WIRE VIO/GRN WIRE VIO/YEL WIRE WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/VIO WIRE WIPER SW HIGH SIG WIPER/WASHER SYSTEM YEL WIRE YEL/BLU WIRE YEL/GRN WIRE YEL/GRY WIRE

12 VOLT REF 5 VOLT REF 6.0L 6.6L TURBO DIESEL EXCEPT 6.6L TURBO DIESEL 4.3L, 5.3L, 6.2L 6.0L ACCEL PEDAL POS LOW REF 1 ACCEL PEDAL POS SIG 1 ACCELERATOR PEDAL POSITION SENSOR ACCL PEDAL POS 5 VOLT REF 1 ACCL PEDAL POS 5 VOLT REF 2 ACCL PEDAL POS LOW REF 2 ACCL PEDAL POS SIG 2 ADAP CRUISE CTRL UP DWN SW SIG BCM 1 FUSE BLK WIRE BLK/BRN WIRE BLK/DK BLU WIRE BLK/GRN WIRE BLK/LT GRN WIRE BLK/VIO WIRE BLK/WHT WIRE BODY CONTROL MODULE (LOWER LEFT SIDE OF DASH) BPP SENS 5 CTRL BPP SENS LOW REF BPP SENS SIG BRN/BLU WIRE BRN/GRN WIRE BRN/RED WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM CRUISE CTRL SET/COAST/ RES/ACC SW SIG CRUISE/ETC/TCC/BRK SIG DK BLU WIRE DK BLU/WHT WIRE DK BLU/YEL WIRE ENGINE CONTROL MODULE GMLAN DATA - (1) GRY/GRN WIRE GRY/RED WIRE HOT AT ALL TIMES LEFT INSTRUMENT PANEL FUSE BLOCK LOW REF LT GRN/WHT WIRE RED/WHT WIRE RUN/CRANK IGNITION 1 VOLT SENS LOW REF SIG GND STOP LAMP SW SIG THRTL ACTR CTRL CLOSE THRTL ACTR CTRL OPEN THRTL POS SENS 5 VOLT REF THRTL POS SENS SIG 1 THRTL POS SENS SIG 2 VEHICLE SPEED SENSOR VIO/LT GRN WIRE VIO/WHT WIRE VSS LOW REF VSS SIG WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/WHT WIRE

A/C EVAPORATOR TEMPERATURE SENSOR A/C IND A/C SWITCH AIR TEMP DOOR CONTROL AIR TEMP DOOR POSITION SIG BLK WIRE BLK/YEL WIRE BLU WIRE BLU/BRN WIRE BLU/YEL WIRE BRN/GRN WIRE COMPUTER DATA LINES SYSTEM DEFROST IND DEFROST SWITCH DEFROST, LOWER AIR OUTLET IND DEFROST, LOWER AIR OUTLET SWITCH DUCT LEFT LOWER AIR TEMPERATURE SENSOR DUCT LEFT UPPER AIR TEMPERATURE SENSOR DUCT RIGHT LOWER AIR TEMPERATURE SENSOR DUCT RIGHT UPPER AIR TEMPERATURE SENSOR EVP CORE TEMP SENS SIG GMLAN GRN WIRE GRN/YEL WIRE GRY WIRE GRY/GRN WIRE HVAC CONTROL MODULE (BEHIND UPPER GLOVE BOX) INFO DISPLAY MODULE LOGIC LOWER AIR OUTLET IND LOWER AIR OUTLET SWITCH LOWER LEFT AIR TEMP SENS SIG LOWER RIGHT AIR TEMP SENS SIG MODE 1 VALVE POSITION SENSOR SIG MODE DOOR CONTROL REAR DEFOGGER IND REAR DEFOGGER SWITCH RECIRCULATION DOOR CONTROL RECIRCULATION DOOR POSITION SIG RECIRCULATION IND RECIRCULATION SWITCH RED WIRE RED/GRY WIRE SENS LOW REF START/ STOP SWITCH TEMPERATURE CONTROL SWITCH UPPER AIR OUTLET IND UPPER AIR OUTLET SWITCH UPPER LEFT AIR TEMP SENS SIG UPPER RIGHT AIR TEMP SENS SIG UPPER, LOWER AIR OUTLET IND UPPER, LOWER AIR OUTLET SWITCH VENTILATION FAN SWITCH VIO/GRN WIRE W/ ELECTRIC REINFORCED HEATING/DEFROSTER SYSTEM W/O ELECTRIC REINFORCED HEATING/DEFROSTER SYSTEM WHT WIRE WHT/GRN WIRE YEL WIRE YEL/BLK WIRE YEL/BRN WIRE

BATT POS VOLT BLK WIRE BLK/DK BLU WIRE BLK/GRY WIRE BLK/WHT WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY GRN/BRN WIRE GRY/GRN WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER INSTRUMENT PANEL JUNCTION BLOCK INSTRUMENT PANEL MULTI- FUNCTION SWITCH LED DISABLE SIG LEFT MIDDLE FRONT PARKING ASSIST SENSOR LEFT MIDDLE REAR PARKING ASSIST SENSOR LEFT OUTER FRONT PARKING ASSIST SENSOR LEFT OUTER REAR PARKING ASSIST SENSOR LEFT/RIGHT/MID SENS LF CORNER PARKING CORNER SENS LF MIDDLE SENS SIG LO SPEED GMLAN SERIAL DATA CENTER DISPLAY 2 LOGIC LOW SPD GMLAN SERIAL DATA LR CORNER SENS SIG LR MIDDLE SENS SIG LT GRN WIRE PARKING ASSIST CONTROL MODULE PARKING ASSIST DISABLE IND PARKING ASSIST DISABLE SWITCH RED/GRN WIRE RF CORNER SENS SIG RF MIDDLE SENS SIG RIGHT INSTRUMENT PANEL FUSE BLOCK RIGHT MIDDLE FRONT PARKING ASSIST SENSOR RIGHT MIDDLE REAR PARKING ASSIST SENSOR RIGHT OUTER FRONT PARKING ASSIST SENSOR RIGHT OUTER REAR PARKING ASSIST SENSOR RR CORNER SENS SIG RR MIDDLE SENS SIG SENS LOW REF SENS OBJECT CTRL SIG GND REAR PARK ASSIST DISABLE SIG USB/OBS DET FUSE VIO/GRY WIRE VIO/WHT WIRE WHT WIRE WHT/GRY WIRE YEL WIRE YEL/DK BLU WIRE YEL/GRN WIRE YEL/GRY WIRE YEL/VIO WIRE YEL/WHT WIRE

5 VOLT REF 6.2L BASE EQUIPMENT EXCEPT BASE EQUIPMENT BCM 6 FUSE BLK WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/WHT WIRE BLU WIRE BODY CONTROL MODULE (LOWER LEFT SIDE OF DASH) COMPUTER DATA LINES SYSTEM DATA BUS 1 DK BLU WIRE DLIS FUSE GMLAN SERIAL GRY/RED WIRE HI SPEED HI SPEED GMLAN SERIAL DATA (-) 1 HOT AT ALL TIMES IGNITION SWITCH INSTRUMENT PANEL JUNCTION BLOCK KEY-IN SWITCH LEFT INSTRUMENT PANEL FUSE BLOCK LOW REF OFF OFF RUN/CRANK VOLT PPL/BLK WIRE RED/BLU WIRE RED/DK BLU WIRE RED/WHT WIRE RIGHT INSTRUMENT PANEL FUSE BLOCK RUN WIRE SENS LOW REF SERIAL DATA BUS (-) IMS MODE SW RETURN SERIAL DATA BUS- SHIFT INTERLOCK SOL CTRL STOP LAMP SW SIG TRANSMISSION CONTROL MODULE TRANSMISSION FLUID PRESSURE SWITCH TRANSMISSION INTERNAL MODE SWITCH AUTOMATIC TRANSMISSION ASSEMBLY TRANSMISSION SHIFT LOCK CONTROL SOLENOID ACTUATOR WHT WIRE WHT/GRN WIRE WHT/GRY WIRE WHT/VIO WIRE YEL/WHT WIRE

ACTUATOR HI CTRL ACTUATOR LOW REF BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/DK BLU WIRE BLK/GRY WIRE BLK/LT GRN WIRE BLK/VIO WIRE BLK/YEL WIRE BLU WIRE BLU/GRY WIRE BRN WIRE BRN/DK BLU WIRE CAMSHAFT POSITION ACTUATOR SOLENOID VALVE CKP SENS SIG DK BLU WIRE DK BLU/VIO WIRE DK BLU/WHT WIRE DOOR LOCKS SYSTEM ECT SENS SIG ENGINE CONTROL MODULE ENGINE OIL PRESSURE SENSOR GRN WIRE GRY/BLU WIRE GRY/BRN WIRE HIGH PRESSURE FUEL PUMP HIGH VOLT CTRL CYLINDER 1 HIGH VOLT CTRL CYLINDER 2 HIGH VOLT CTRL CYLINDER 3 HIGH VOLT CTRL CYLINDER 4 HIGH VOLT CTRL CYLINDER 5 HIGH VOLT CTRL CYLINDER 6 IGN CTRL (1) IGN CTRL (2) IGN CTRL (3) IGN CTRL (4) IGN CTRL (5) IGN CTRL (6) IGNITION COIL 1 IGNITION COIL 2 IGNITION COIL 3 IGNITION COIL 4 IGNITION COIL 5 IGNITION COIL 6 INTAKE SENS 1 INTAKE SOLENOID LOW REF LT GRN WIRE LT GRN/DK BLU WIRE NCA WIRE OIL PRESS SENS SIG SENS CTRL 1 SENS LOW REF SPARK PLUG VIO/BLK WIRE VIO/BLU WIRE VIO/BRN WIRE VIO/DK BLU WIRE VIO/GRN WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/BRN WIRE YEL/DK BLU WIRE YEL/VIO WIRE YEL/WHT WIRE

A/C COMPRESSOR CLUTCH RELAY CTRL A/C REFRIGERANT PRESSURE SENS SIG A/C REFRIGERANT PRESSURE SENSOR ACCELERATOR PEDAL POSITION SENSOR ACCESSORY WAKEUP SERIAL DATA AIR CONDITIONING SYSTEM AMBIENT AIR TEMP SENS SIG APP LOW REF 1 APP LOW REF 2 APP SENS SIG (2) APP SENS SIG 1 BATTERY POSITIVE VOLT BLK WIRE BLK/BRN WIRE BLK/DK BLU WIRE BLK/LT GRN WIRE BLK/VIO WIRE BLK/YEL WIRE BLU/BLK WIRE BLU/GRY WIRE BLU/VIO WIRE BLU/YEL WIRE BRAKE APPLY SENS SIG BRAKE APPLY SENS SPLY VOLT BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE CHECK ENGINE INDICATOR CTRL COMPUTER DATA LINES SYSTEM COOLING FANS SYSTEM CRUISE CONTROL SYSTEM CRUISE/ETC/TCC BRAKE SIG DATA OUT SIG DK BLU WIRE DK BLU/WHT WIRE DOOR LOCKS SYSTEM ENGINE CONTROL MODULE EVAP CANISTER VENT SOL CTRL EVAPORATIVE EMISSION VENT SOLENOID VALVE FOUR WHEEL DRIVE LOW SIG FOUR WHEEL DRIVE WHEEL LOCK IND FUEL LEVEL SENS SIG FUEL LINE PRESSURE SENS LOW REF FUEL LINE PRESSURE SENS SIG FUEL RAIL PRESSURE SENS SIG FUEL TANK PRESSURE SENS SIG FUEL TANK PRESSURE SENSOR FUEL TEMP/COMPOSITION SIG FUSED SPLY 3 BRAKE APPLY SENS LOW REF GMLAN SERIAL DATA (-) 3 GMLAN SERIAL DATA - 1 GRN WIRE GRN/VIO WIRE GRY WIRE GRY/BLK WIRE HIGH SPD COOLING FAN RELAY CTRL HOOD OPEN SW SIG LT GRN WIRE LT GRN/WHT WIRE POWERTRAIN RELAY COIL CTRL PRESSURE SENS LOW REF PRESSURE SENS SIG RED/BRN WIRE RED/LT GRN WIRE RELAY FUSED SPLY 1 RELAY FUSED SPLY 2 RUN/CRANK IGNITION 1 VOLT SENS LOW REF STARTER ENABLE RELAY CTRL STARTING/CHARGING SYSTEM TRANSMISSIONS SYSTEM UNDERHOOD FUSE BLOCK VIO/DK BLU WIRE VIO/GRN WIRE VIO/YEL WIRE WHT WIRE WHT/BLU WIRE WHT/GRY WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE YEL/RED WIRE YEL/WHT WIRE

ACTUATOR HI CONTROL ACTUATOR LOW REF BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/DK BLU WIRE BLK/GRY WIRE BLK/LT GRN WIRE BLK/PPL WIRE BLK/VIO WIRE BLK/YEL WIRE BRN WIRE BRN/DK BLU WIRE CAMSHAFT POSITION ACTUATOR SOLENOID VALVE CKP SENS SIG CYLINDER 1 CYLINDER 2 CYLINDER 3 CYLINDER 4 CYLINDER 5 CYLINDER 6 CYLINDER 7 CYLINDER 8 DK BLU WIRE DK BLU/GRY WIRE DK BLU/VIO WIRE DK BLU/WHT WIRE DOOR LOCKS SYSTEM ECT SENS SIG ENGINE CONTROL MODULE ENGINE OIL PRESSURE SENSOR GRY WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/DK BLU WIRE HIGH PRESSURE FUEL PUMP IGN CONTROL (1) IGN CONTROL (2) IGN CONTROL (3) IGN CONTROL (5) IGN CONTROL (6) IGN CONTROL (7) IGN CONTROL (8) IGN CONTROL 4 IGN CONTROL LOW REF IGNITION COIL 1 IGNITION COIL 2 IGNITION COIL 3 IGNITION COIL 4 IGNITION COIL 5 IGNITION COIL 6 INTAKE SENS 1 INTAKE SOLENOID LOW REF LT GRN WIRE LT GRN/DK BLU WIRE LT GRN/GRY WIRE NCA WIRE OIL PRESS SENS SIG PPL/LT GRN WIRE PRESS SENS LOW REF SENS LOW REF SPARK PLUG SPLY VOLT TEMP SENS LOW REF VIO/BLK WIRE VIO/BLU WIRE VIO/BRN WIRE VIO/DK BLU WIRE VIO/WHT WIRE WHT/LT GRN WIRE WHT/RED WIRE YEL WIRE YEL/BRN WIRE YEL/DK BLU WIRE YEL/GRY WIRE YEL/VIO WIRE YEL/WHT WIRE