Chevrolet Tahoe IV (2014-2021) engine control module Wiring diagrams

5.3L, 6.2L 6.0L A/C COMPRESSOR CLUTCH RELAY A/C COMPRESSOR CLUTCH RLY CTRL A/C CONTROL FUSE A/C PRESS SENS 5 VOLT REF A/C REFRIGERANT PRESS SENS LO REF A/C REFRIGERANT PRESS SENS SIG A/C REFRIGERANT PRESSURE SENSOR AMBIENT AIR TEMP SENS SIG AMBIENT AIR TEMPERATURE SENSOR B+ VOLT BATT+ VOLT BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/WHT WIRE BLU WIRE BLU/GRY WIRE BRN WIRE BRN/GRN WIRE BRN/RED WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM COOL FAN LT FUSE COOL FAN RT FUSE ENG COOLANT TEMP SENS SIG ENGINE CONTROL MODULE ENGINE CONTROLS IGNITION RELAY ENGINE COOLANT TEMPERATURE SENSOR GRN WIRE HI SPD COOLING FAN RLY CTRL HI SPD GMLAN SERIAL DATA (-) (1) HOT AT ALL TIMES LEFT COOLING FAN MOTOR LO REF RED/BRN WIRE RED/GRY WIRE RED/WHT WIRE RIGHT COOLING FAN MOTOR TCM/ECM FUSE UNDERHOOD FUSE BLOCK WHT WIRE WHT/GRY WIRE

AMP FUSE AUDIO AMPLIFIER (LEFT REAR QUARTER PANEL TRIM) BATTERY POSITIVE VOLTAGE SUBWOOFER SPEAKER (-) RF SPEAKER SIGNAL (-) (1) BLK WIRE BLU WIRE BLU/BLK WIRE BLU/GRY WIRE BLU/YEL WIRE BRN/BLU WIRE BRN/GRN WIRE COMPUTER DATA LINES SYSTEM ENGINE CONTROL MODULE GRN WIRE GRN/BLK WIRE GRN/BRN WIRE GROUND GRY/BLK WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/GRN WIRE GRY/VIO WIRE HOT AT ALL TIMES LEFT FRONT DOOR SPEAKER LEFT FRONT RADIO VOLUME COMPENSATOR INTERIOR NOISE MICROPHONE LEFT INSTRUMENT PANEL SPEAKER LEFT REAR DOOR SPEAKER LEFT REAR TRIM PANEL SPEAKER LEFT SPEAKER (-) LF SPEAKER (+) (1) LF SPEAKER SIGNAL (-) (1) LO SPD GMLAN SERIAL DATA LR SPEAKER (+) LR SPEAKER SIGNAL (-) MIC LOW REF 1 MIC LOW REF 2 MIC LOW REF 3 MOST CONTROL MOST SERIAL DATA (+) NCA WIRE NOISE REDUCTION MIC SIG 1 NOISE REDUCTION MIC SIG 2 NOISE REDUCTION MIC SIG 3 REAR RADIO VOLUME COMPENSATOR INTERIOR NOISE MICROPHONE RED/YEL WIRE REPLICATED SIGNAL RF SPEAKER (+) (1) RF SPEAKER (+) (1) SUBWOOFER SPEAKER (+) RF SPEAKER SIGNAL (-) (1) RIGHT FRONT DOOR SPEAKER RIGHT FRONT RADIO VOLUME COMPENSATOR INTERIOR NOISE MICROPHONE RIGHT INSTRUMENT PANEL FUSE BLOCK RIGHT INSTRUMENT PANEL SPEAKER RIGHT REAR DOOR SPEAKER RIGHT SPEAKER (+) RR SPEAKER (+) RR SPEAKER SIGNAL (-) SUBWOOFER SPEAKER VIO/BLU WIRE VIO/BRN WIRE W/O FRONT COMPARTMENT CONSOLE W/ FRONT COMPARTMENT CONSOLE WHT WIRE WHT/GRN WIRE WHT/VIO WIRE YEL WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/GRY WIRE

AMP FUSE AUDIO AMPLIFIER (LEFT REAR QUARTER PANEL TRIM) BATTERY POSITIVE VOLTAGE BLK WIRE BLU WIRE BLU/BLK WIRE BLU/GRY WIRE BLU/YEL WIRE BRN/BLU WIRE BRN/GRN WIRE CENTER INSTRUMENT PANEL SPEAKER COMPUTER DATA LINES SYSTEM ENGINE CONTROL MODULE FRONT CENTER SPEAKER (+) GRN WIRE GRN/BLK WIRE GRN/BRN WIRE GROUND GRY/BLK WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/GRN WIRE GRY/VIO WIRE HOT AT ALL TIMES LEFT FRONT DOOR TWEETER SPEAKER LEFT FRONT DOOR WOOFER SPEAKER LEFT FRONT RADIO VOLUME COMPENSATOR INTERIOR NOISE MICROPHONE LEFT INSTRUMENT PANEL SPEAKER LEFT REAR DOOR SPEAKER LEFT REAR TWEETER SPEAKER LF SPEAKER (+) (1) LF SPEAKER SIGNAL (-) (1) LF TWEETER SPEAKER (+) LO SPD GMLAN SERIAL DATA LR MIDRANGE SPEAKER (-) LR SPEAKER (+) LR SPEAKER SIGNAL (-) MIC LOW REF 1 MIC LOW REF 2 MIC LOW REF 3 MOST CONTROL MOST SERIAL DATA (+) NCA WIRE NOISE REDUCTION MIC SIG 1 NOISE REDUCTION MIC SIG 2 NOISE REDUCTION MIC SIG 3 REAR RADIO VOLUME COMPENSATOR INTERIOR NOISE MICROPHONE RED/YEL WIRE REPLICATED SIGNAL RF SPEAKER (+) (1) RF SPEAKER SIGNAL (-) (1) RF TWEETER SPEAKER (+) RIGHT FRONT RADIO VOLUME COMPENSATOR INTERIOR NOISE MICROPHONE RIGHT INSTRUMENT PANEL FUSE BLOCK RIGHT INSTRUMENT PANEL SPEAKER RIGHT REAR DOOR SPEAKER RIGHT REAR TWEETER SPEAKER RR SPEAKER (+) RR SPEAKER SIGNAL (-) SUBWOOFER SPEAKER VIO/BLU WIRE VIO/BRN WIRE WHT WIRE WHT/BLK WIRE WHT/GRN WIRE WHT/VIO WIRE YEL WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRY WIRE YEL/WHT WIRE

AMP FUSE AUDIO AMPLIFIER (LEFT REAR QUARTER PANEL TRIM) BATTERY POSITIVE VOLTAGE SUBWOOFER SPEAKER (-) RF SPEAKER SIGNAL (-) (1) BLK WIRE BLU WIRE BLU/BLK WIRE BLU/GRY WIRE BLU/YEL WIRE BRN/BLU WIRE BRN/GRN WIRE CENTER INSTRUMENT PANEL SPEAKER CENTER SPEAKER COMPUTER DATA LINES SYSTEM ENGINE CONTROL MODULE GRN WIRE GRN/BLK WIRE GRN/BRN WIRE GROUND GRY/BLK WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/GRN WIRE GRY/VIO WIRE HOT AT ALL TIMES LEFT FRONT DOOR SPEAKER LEFT FRONT RADIO VOLUME COMPENSATOR INTERIOR NOISE MICROPHONE LEFT INSTRUMENT PANEL SPEAKER LEFT REAR DOOR SPEAKER LEFT REAR TRIM PANEL SPEAKER LEFT SPEAKER (-) LF SPEAKER (+) (1) LF SPEAKER SIGNAL (-) (1) LO SPD GMLAN SERIAL DATA LR SPEAKER (+) LR SPEAKER SIGNAL (-) LR TRIM PANEL SPEAKER (-) MIC LOW REF 1 MIC LOW REF 2 MIC LOW REF 3 MOST CONTROL MOST SERIAL DATA (+) NCA WIRE NOISE REDUCTION MIC SIG 1 NOISE REDUCTION MIC SIG 2 NOISE REDUCTION MIC SIG 3 REAR RADIO VOLUME COMPENSATOR INTERIOR NOISE MICROPHONE RED/YEL WIRE REPLICATED SIGNAL RF SPEAKER (+) (1) RF SPEAKER (+) (1) SUBWOOFER SPEAKER (+) RF SPEAKER SIGNAL (-) (1) RIGHT FRONT DOOR SPEAKER RIGHT FRONT RADIO VOLUME COMPENSATOR INTERIOR NOISE MICROPHONE RIGHT INSTRUMENT PANEL FUSE BLOCK RIGHT INSTRUMENT PANEL SPEAKER RIGHT REAR DOOR SPEAKER RIGHT SPEAKER (+) RR SPEAKER (+) RR SPEAKER SIGNAL (-) SUBWOOFER SPEAKER VIO/BLU WIRE VIO/BRN WIRE W/O FRONT COMPARTMENT CONSOLE W/ FRONT COMPARTMENT CONSOLE WHT WIRE WHT/BLK WIRE WHT/GRN WIRE WHT/VIO WIRE YEL WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRY WIRE YEL/WHT WIRE

5.3L, 6.2L 6 SPEED A/T 6.0L 6.0L 5.3L, 6.2L 8 SPEED A/T A/C COMPRESSOR CLUTCH RELAY A/C CONTRL FUSE ABS PUMP FUSE ABS VLV FUSE AERO SHUTTER FUSE AHA RVC FUSE ALC RUN/ CRANK FUSE AUXILIARY CHASSIS CONTROL MODULE BLK WIRE BODY CONTROL MODULE COOL FAN LT FUSE COOL FAN RT FUSE ECM IGN FUSE ECM/TCM FUSE ELECTRONIC BRAKE CONTROL MODULE ENGINE CONTROL MODULE ENGINE CONTROLS IGNITION RELAY ENGINE CONTROLS MODULE WAKE-UP RELAY EVAPORATIVE EMISSION VENT SOLENOID VALVE FPPM FUSE FROM BATTERY FUSE BLOCK (DIAGRAM 1 OF 10) FRONT AXLE ENGAGEMENT ACTUATOR FRONT FOG LAMP RELAY FUEL PUMP DRIVER CONTROL MODULE FUEL PUMP FUSE FUEL PUMP RELAY GRN/VIO WIRE HEADLAMP HIGH BEAM RELAY HEADLAMP LOW BEAM RELAY HORN RELAY ICCM FUSE IGNITION MAIN RELAY INT HTR AUX FUSE LEFT COOLING FAN MOTOR LEFT TRAILER STOP/TURN SIGNAL LAMP RELAY MISC IGN SPARE FUSE PARK LAMPS RELAY POLICE PROVISION (BLUNT CUT) REAR WINDOW WASHER PUMP RELAY RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE RIGHT COOLING FAN MOTOR RIGHT TRAILER STOP/TURN SIGNAL LAMP RELAY SEC FUEL PUMP FUSE SECONDARY FUEL PUMP RELAY STARTER RELAY STRTR FUSE TO AUXILIARY BATTERY RELAY 2 (DIAGRAM 10 OF 10) TO CONFIGURABLE PROVISION RELAY 4 (DIAGRAM 10 OF 10) TO LEFT INSTRUMENT PANEL FUSE BLOCK (DIAGRAM 1 OF 10) TO LEFT INSTRUMENT PANEL FUSE BLOCK (DIAGRAM 3 OF 10) TO RC UPFIT 3, 4 FUSE (DIAGRAM 10 OF 10) TO REAR BODY FUSE BLOCK (DIAGRAM 9 OF 10) TRAILER BACKUP LAMPS RELAY TRANS IGN FUSE TRANSMISSION CONTROL MODULE UNDERHOOD FUSE BLOCK VEHICLE LEVEL CONTROL COMPRESSOR RELAY VIO/BLK WIRE VIO/GRN WIRE VIO/WHT WIRE W/ HID WINDSHIELD WASHER PUMP RELAY WINDSHIELD WIPER RELAY WINDSHIELD WIPER SPEED CONTROL RELAY WPR FUSE

AMP FUSE AUDIO AMPLIFIER (LEFT REAR QUARTER PANEL TRIM) BLK WIRE BLU WIRE BLU/BLK WIRE BLU/GRY WIRE BLU/YEL WIRE BRN/BLU WIRE BRN/GRN WIRE CENTER INSTRUMENT PANEL SPEAKER CENTER SPEAKER COMPUTER DATA LINES SYSTEM ENGINE CONTROL MODULE GRN WIRE GRN/BLK WIRE GRN/BRN WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/GRN WIRE GRY/VIO WIRE HOT AT ALL TIMES LEFT FRONT DOOR SPEAKER LEFT FRONT RADIO VOLUME COMPENSATOR INTERIOR NOISE MICROPHONE LEFT INSTRUMENT PANEL SPEAKER LEFT REAR DOOR SPEAKER LEFT REAR TRIM PANEL SPEAKER LEFT SPEAKER (-) LF SPEAKER (+) (1) BATTERY POSITIVE VOLTAGE LF SPEAKER SIGNAL (-) (1) GROUND LO SPD GMLAN SERIAL DATA LR SPEAKER (+) LR SPEAKER SIGNAL (-) LR TRIM PANEL SPEAKER (-) MIC LOW REF 1 MIC LOW REF 2 MIC LOW REF 3 MOST CONTROL MOST SERIAL DATA (+) NCA WIRE NOISE REDUCTION MIC SIG 1 NOISE REDUCTION MIC SIG 2 NOISE REDUCTION MIC SIG 3 REAR RADIO VOLUME COMPENSATOR INTERIOR NOISE MICROPHONE RED/YEL WIRE REPLICATED SIGNAL RF SPEAKER (+) (1) RF SPEAKER (+) (1) SUBWOOFER SPEAKER (+) RF SPEAKER SIGNAL (-) (1) RIGHT FRONT DOOR SPEAKER RIGHT FRONT RADIO VOLUME COMPENSATOR INTERIOR NOISE MICROPHONE RIGHT INSTRUMENT PANEL FUSE BLOCK RIGHT INSTRUMENT PANEL SPEAKER RIGHT REAR DOOR SPEAKER RIGHT SPEAKER (+) RR SPEAKER (+) RR SPEAKER SIGNAL (-) SUBWOOFER SPEAKER SUBWOOFER SPEAKER (-) RF SPEAKER SIGNAL (-) (1) VIO/BLU WIRE VIO/BRN WIRE W/O FRONT COMPARTMENT CONSOLE W/ FRONT COMPARTMENT CONSOLE WHT WIRE WHT/BLK WIRE WHT/GRN WIRE WHT/VIO WIRE YEL WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRY WIRE YEL/WHT WIRE

5.3L, 6.2L 5.3L, 6.2L 6.0L 6 SPEED A/T 6.0L 8 SPEED A/T AUTOMATIC TRANSMISSION ASSEMBLY BCM 7 FUSE BLK WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/WHT WIRE BLU WIRE BLU/GRN WIRE BLU/YEL WIRE BODY CONTROL MODULE BRAKE PEDAL POSITION SENSOR COMPUTER DATA LINES SYSTEM CONTROL SOLENOID VALVE ASSEMBLY DATA ECM FUSE ENGINE CONTROL MODULE GM LAN HI SPD SER GRN WIRE GRN/WHT WIRE GRY WIRE GRY/RED WIRE HI SPD SER DATA (-) 1 HOT AT ALL TIMES HOT W/ ENGINE CONTROLS IGNITION RELAY ENERGIZED IGN MODE IGNITION MODE SWITCH (W/ KEYLESS ACCESS) IGNITION SWITCH IMS MODE SW RETURN INSTRUMENT PANEL JUNCTION BLOCK KEY-IN IGNITION SWITCH LOW REF OFF OFF/ RUN/ CRANK/ VOLT P/N SIG PARK POSITION SWITCH PARK SOL SIG CTRL RED WIRE RELAY FUSED SPLY 1 RIGHT INSTRUMENT PANEL FUSE BLOCK RUN WIRE SEN SIG SEN SPLY VOLT STOP LAMP TRANSMISSION CONTROL MODULE TRANSMISSION INTERNAL MODE SWITCH TRANSMISSION SHIFT LEVER TRANSMISSION SHIFT LOCK CONTROL SOLENOID ACTUATOR UNDERHOOD FUSE BLOCK VIO WIRE VIO/BLU WIRE W/ KEYLESS ACCESS W/O KEYLESS ACCESS WHT WIRE WHT/GRN WIRE WHT/GRY WIRE WHT/VIO WIRE YEL WIRE YEL/WHT WIRE

ACTU HI CTRL BATT+ VOLT BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/VIO WIRE BLK/WHT WIRE BLU WIRE BLU/GRY WIRE BLU/VIO WIRE BLU/WHT WIRE BRN WIRE BRN/BLU WIRE BRN/WHT WIRE BUS 12 CAMSHAFT LO REF 1 COMPUTER DATA LINES SYSTEM COOLANT TEMP LO REF CRANK SENS SIG CRANK SENS VOLT CRANK SHAFT LO REF CTRL 1 CTRL CYLINDER 1 CTRL CYLINDER 2 CTRL CYLINDER 3 CTRL CYLINDER 4 CTRL CYLINDER 5 CTRL CYLINDER 6 CTRL CYLINDER 7 CTRL CYLINDER 8 DRIVER INFORMATION CENTER DISPLAY ENGINE CONTROL MODULE FUEL IND FUEL PUMP LO CTRL GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/GRY WIRE GRN/VIO WIRE GRY WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/GRN WIRE IGN 1 VOLT IGN CTRL (1) IGN CTRL (2) IGN CTRL (3) IGN CTRL (4) IGN CTRL (5) IGN CTRL (6) IGN CTRL (7) IGN CTRL (8) IND CTRL INSTRUMENT CLUSTER INSTRUMENT PANEL JUNCTION BLOCK INTAKE SENSOR 1 INTAKE SOL (1) LO REF BANK 1 LO REF BANK 2 LOGIC MALFUNCTION LAMP IND NCA WIRE NETWORK OIL LEVEL IND OIL PRESS LO REF OIL PRESS SENS SIG RED/GRY WIRE RUN/CRANK SER DATA SIG GND SOLENOID CTRL 3 SOLENOID CTRL 4 SPARK PLUG TEMP SENS SIG VIO/BLK WIRE VIO/BLU WIRE VIO/BRN WIRE VIO/WHT WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRY WIRE YEL/VIO WIRE YEL/WHT WIRE

BLK/BRN WIRE BLK/GRN WIRE BLK/VIO WIRE BLK/WHT WIRE BLU WIRE BLU/GRY WIRE BLU/WHT WIRE BRN WIRE BRN/GRN WIRE BRN/WHT WIRE CAM SHAFT LO REF CAMSHAFT POSITION ACTUATOR SOLENOID VALVE CAMSHAFT POSITION SENSOR CRANKSHAFT POSITION SENSOR ENGINE CONTROL MODULE EVAPORATIVE EMISSION PURGE SOLENOID VALVE FUEL INJECTOR 2 FUEL INJECTOR 7 FUEL INJECTOR 8 GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/WHT WIRE GRY WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/WHT WIRE LOW REF SENS SIG SENS VOLT SIG SIG GND SOLENOID CTRL 1 SOLENOID CTRL 2 SPLY CYLINDER 1 SPLY CYLINDER 2 SPLY CYLINDER 3 SPLY CYLINDER 4 SPLY CYLINDER 5 SPLY CYLINDER 6 SPLY CYLINDER 7 SPLY CYLINDER 8 VIO WIRE VIO/BLU WIRE VIO/BRN WIRE WHT/GRN WIRE WHT/RED WIRE WHT/YEL WIRE YEL/GRY WIRE YEL/VIO WIRE YEL/WHT WIRE

ABSOLUTE PRESS SENS SIG AIR CONDITIONING SYSTEM AIR FLOW SENS SIG AIR TEMP SENS SIG AMBIENT SENS LO REF BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/GRN WIRE BRN/RED WIRE BRN/WHT WIRE CHARGE INDICATOR CTRL DUTY CYCLE SIG ENGINE CONTROL MODULE ENGINE OIL LEVEL SWITCH FUEL PRESSURE/TEMPERATURE SENSOR GRN WIRE GRN/BLU WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/RED WIRE GRY/WHT WIRE HI INPUT SIG HI SIG BANK 1 SENS (1) HI SIG BANK 1 SENS (2) HI SIG BANK 2 SENS 1 HI SIG BANK 2 SENS 2 HUMIDITY SENS SIG KNOCK SENS LO REF 1 KNOCK SENS LO REF 2 KNOCK SENS SIG 1 KNOCK SENS SIG 2 KNOCK SENSOR #2 KNOCK SENSOR 1 LO CTRL BANK 1 SENS (1) LO CTRL BANK 1 SENS (2) LO CTRL BANK 2 SENS 1 LO CTRL BANK 2 SENS 2 LO REF LO SIG BANK 1 SENS 1 LO SIG BANK 1 SENS 2 LO SIG BANK 2 SENS 1 LO SIG BANK 2 SENS 2 LOGIC LOW REF MANIFOLD ABSOLUTE PRESSURE SENSOR OIL PUMP COMMAND SIG OIL LEVEL SW SIG PARK/NEUTRAL SIG (1) PURGE SOLENOID CTRL REPLICATED SIG SIG GND SOUND SYSTEMS STARTING/CHARGING SYSTEM THROTTLE BODY (FRONT OF INTAKE MANIFOLD) THROTTLE CTRL CLOSE THROTTLE CTRL OPEN THROTTLE SENS LOW REF THROTTLE SENS SIG TRANSMISSIONS SYSTEM VEH SPD SENS LO REF VEH SPD SENS SIG VEHICLE SPEED SENSOR VIO WIRE VIO/BLU WIRE VIO/GRN WIRE VIO/GRY WIRE VIO/WHT WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/BRN WIRE WHT/GRY WIRE WHT/YEL WIRE YEL WIRE YEL/BLU WIRE YEL/WHT WIRE