Chevrolet Tahoe III (2006-2014) tan/blk Wiring diagrams

27 28 GMLAN SERIAL DATA BUS - GMLAN SERIAL DATA BUS + 68 18 1 MIL CTRL WAKE UP SERIAL DATA PARK/NEUTRAL SIG 71 72 REPLICATED TOS SIG SIGNAL RETURN AUTOMATIC TRANSMISSION AUTOMATIC TRANSMISSION FLUID TEMPERATURE (TFT) SENSOR AUX HVAC-IGN FUSE 48 B+ GND BRAKE SW SIG BLK/WHT WIRE BRN/WHT WIRE CADILLAC GMC, CHEVROLET COMPUTER DATA LINES SYSTEM COMPUTER DATA LINES SYSTEM PNK WIRE CONTROL SOLENOID VALVE ASSEMBLY DK BLU WIRE DK GRN WIRE DRIVER INFORMATION CENTER DISPLAY (DIC) ENGINE CONTROL MODULE (ECM) (LEFT SIDE OF ENGINE COMPT) FUSE 19 GROUND DISTRIBUTION SYSTEM HOT AT ALL TIMES HOT W/ RUN/CRANK RELAY ENERGIZED IGN IGN VOLTAGE INSTRUMENT PANEL CLUSTER (IPC) LEFT I/P JUNCTION BLOCK (LEFT END OF DASH) LOGIC LOW REFERENCE LT BLU/WHT WIRE LT GRN/BLK WIRE MIL IND MISC-IGN FUSE 43 ORG/BLK WIRE PC SOLENOID 1 CONTROL PC SOLENOID 3 CONTROL PC SOLENOID 4 CONTROL PC SOLENOID 5 CONTROL PNK WIRE PPL/WHT WIRE PRESSURE CONTROL (PC) SOLENOID VALVE 1 PRESSURE CONTROL (PC) SOLENOID VALVE 2 PRESSURE CONTROL (PC) SOLENOID VALVE 3 PRESSURE CONTROL (PC) SOLENOID VALVE 4 PRESSURE CONTROL (PC) SOLENOID VALVE 5 RED/WHT WIRE REPLICATED TOS SIG SER DATA SHIFT SOLENOID (SS) 1 CONTROL SHIFT SOLENOID (SS) 2 CONTROL SHIFT SOLENOID (SS) VALVE 1 SHIFT SOLENOID (SS) VALVE 2 STOP LAMP SWITCH (TOP OF BRAKE PEDAL BRACKET) TAN WIRE TAN/BLK WIRE TCM- BATT FUSE 14 TO CONTROL SOLENOID VALVE ASSEMBLY (DIAGRAM 2 OF 2) TORQUE CONVERTER CLUTCH (TCC) PRESSURE CONTROL (PC) SOLENOID VALVE TORQUE CONVERTER CLUTCH PRESSURE CONTROL SOLENOID CONTROL TOW/ HAUL IND TRANSMISSION CONTROL MODULE (TCM) TRANSMISSION FLUID TEMPERATURE (TFT) SENSOR SIGNAL UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) VEHICLE SPEED SENSOR (VSS) (RIGHT REAR OF TRANSMISSION) W/ ACTIVE CONTROL TRANSFER CASE W/O ACTIVE CONTROL TRANSFER CASE

ACCESSORY WAKE UP SERIAL DATA AUTOMATIC TRANSMISSION AUTOMATIC TRANSMISSION FLUID PRESSURE (TFP) MANUAL VALVE POSITION SWITCH AUTOMATIC TRANSMISSION INTERNAL MODE SWITCH (IMS) AUTOMATIC TRANSMISSION MANUAL SHIFT SWITCH AUTOMATIC TRANSMISSION SHIFT LEVER BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (LEFT SIDE OF DASH) COMPUTER DATA LINES SYSTEM CRUISE CONTROL SYSTEM DK BLU WIRE FROM CONTROL SOLENOID VALVE ASSEMBLY (DIAGRAM 1 OF 2) GMLAN GMLAN SERIAL SERIAL DATA DATA BUS - BUS + GMLAN SERIAL DATA BUS + GRN WIRE GROUND GRY WIRE INPUT SPEED SENSOR (ISS) INPUT SPEED SENSOR (ISS) SIGNAL ISS/OSS CTRL LT BLU WIRE NCA WIRE OUTPUT SPEED SENSOR (OSS) OUTPUT SPEED SENSOR (OSS) SIGNAL PNK WIRE PPL RED WIRE TAN WIRE TAN/BLK WIRE TAP TOW/ UP/ HAUL TAP SW DOWN SIG SW SIG TFP SWITCH 1 VOLTAGE TFP SWITCH 3 VOLTAGE TFP SWITCH 4 VOLTAGE TFP SWITCH 5 VOLTAGE TOW/ HAUL SWITCH TRANSMISSION CONTROL MODULE (TCM) CONTROL SOLENOID VALVE ASSEMBLY TRANSMISSION RANGE SWITCH SIG A TRANSMISSION RANGE SWITCH SIG B TRANSMISSION RANGE SWITCH SIG C TRANSMISSION RANGE SWITCH SIG P WHT WIRE YEL WIRE

2 HI 2-HI IND 4 HI 4 LO 4-HI IND 4-LO IND 5 VOL REF ENCODER SIG 8 VOL REF LOW REF SW SIG PPL AUTO AUX HVAC-IGN FUSE 48 B+ GND BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (LEFT SIDE OF DASH) BRAKE CONTROL BRN WIRE BRN/WHT WIRE CADILLAC GMC, CHEVROLET COMPUTER DATA LINES SYSTEM DATA SER DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE ENCODER TRANSFER CASE ENCODER MOTOR (LEFT SIDE OF TRANSFER CASE) FRONT AXLE ACTUATOR (FRONT AXLE HOUSING) FRONT PROPSHAFT SPEED SENSOR (LEFT SIDE OF TRANSFER CASE) FUSE 19 GROUND DISTRIBUTION SYSTEM GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT W/ RUN/CRANK RELAY ENERGIZED IGN VOLT ILLUMINATION INSTRUMENT PANEL CLUSTER (IPC) LAMP LEFT I/P JUNCTION BLOCK (LEFT END OF DASH) LOCK SOL CTRL LOGIC LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE MISC-IGN FUSE 43 MOTOR CTRL B MOTOR CTRL A NCA WIRE NEUT NEUTRAL IND NEUTRAL IND CTRL ORG/ WIRE ORG/WHT WIRE PNK AWD IND CTRL AXLE ACTUATOR CTRL WIRE PNK WIRE PNK/WHT WIRE POWER DISTRIBUTION SYSTEM PPL PPL/WHT WIRE REAR PROPSHAFT SPEED SENSOR (TRANSFER CASE EXTENSION HOUSING) RED/BLK WIRE TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TRANSFER CASE SHIFT CONTROL MODULE (LEFT END OF DASH) TRANSFER CASE SHIFT CONTROL SWITCH TREC FUSE 67 UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) VIO WIRE W/ ACTIVE TWO SPEED TRANSFER CASE CONTROL W/ HEATED STEERING WHEEL WAKE UP SIG WHT WIRE WHT/LT GRN WIRE YEL WIRE YEL/BLK WIRE

10 16 17 LOW SPD GMLAN DATA BUS+ DATA BUS- 10 9 8 LOW REF SNS SIG SNS CTRL 23 25 32 61 GEN SIG CHG IND 2500 2501 28 27 DATA BUS+ DATA BUS- BATTERY BATTERY CURRENT SENSOR (LEFT SIDE OF ENGINE COMPT) BLK WIRE BODY CONTROL MODULE (BCM) BRN WIRE CHARGE IND COMPUTER DATA LINES SYSTEM DK GRN WIRE DRIVER INFORMATION CENTER (DIC) DISPLAY ENGINE CONTROL MODULE (ECM) (LEFT SIDE OF ENGINE COMPT) FUSE HOLDER (ON POSITIVE BATTERY POST) COMPUTER DATA LINES SYSTEM GENERATOR GMC, CHEVROLET CADILLAC GRY WIRE HOT AT ALL TIMES INSTRUMENT PANEL CLUSTER (IPC) IPC FUSE 46 LOGIC PNK WIRE POWER DISTRIBUTION SYSTEM POWER DISTRIBUTION SYSTEM 5060 2500 2501 POWER DISTRIBUTION SYSTEM 5077 5075 5076 RED WIRE RED/BLK WIRE RED/WHT WIRE STARTING CIRCUIT TAN WIRE TAN/BLK WIRE VOLT WHT WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 L AUD + R AUD + DRAIN WIRE 1 2 3 4 5 6 7 8 9 L AUD - L AUD + R AUD + R AUD - GMLAN 1 2 3 B+ LF SPK+ RF SPK+ 4 5 PNK VOICE SIG LOW REF WIRE 6 7 8 9 10 11 12 13 14 REM SIG LED CTRL GND LF SPK- RF SPK- 7066 6817 2550 INTERIOR LIGHTS SYSTEM ANTENNA AUD SIG BLK WIRE BRN WIRE BRN/WHT WIRE CELLULAR TELEPHONE MICROPHONE CELLULAR, NAVIGATION ANTENNA (IF EQUIPPED) (LEFT FRONT OF ROOF) CELLULAR, NAVIGATION, DIGITAL RADIO ANTENNA (LEFT FRONT OF ROOF) COAX COAX ANT SIG COAX COAX COAX NAV SIG COAX W/ RADIO ANTENNA COAX W/O RADIO ANTENNA COMPUTER DATA LINES COMPUTER DATA LINES SYSTEM DIGITAL RADIO RECEIVER (IF EQUIPPED) DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE DRAIN WIRE GMLAN GND (PINS: 10-15 NOT USED) GREEN LED GRN WIRE GRY WIRE HOT AT ALL TIMES HOT AT ALL TIMES I/P FUSE BLOCK REAR (LEFT END SEAT OF DASH) ENT FUSE INFO FUSE KEY CTRL KEYPAD SIG L AUD - R AUD - DRAIN WIRE LEFT I/P JUNCTION BLOCK (LEFT END OF DASH) LEFT I/P JUNCTION BLOCK (W/O LUXURY) (LEFT END OF DASH) LOW REF LR AUD + RR AUD + VOICE SIG LR AUD - RR AUD - LOW REF VID MDE 2 LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE NCA WIRE PNK WIRE PNK/BLK WIRE RADIO RADIO ANTENNA MODULE RADIO REAR WINDOW ANTENNA RDO FUSE 42 RED LED WIRE RED/WHT WIRE RIGHT I/P JUNCTION BLOCK (RIGHT END OF DASH) SYSTEM TAN WIRE TAN/BLK WIRE TAN/WHT WIRE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) VEHICLE COMMUNICATION INTERFACE MODULE (VCIM) (CENTER OF DASH) VOICE SIG W/ ONE PIECE LIFTGATE W/ ONSTAR W/O ONSTAR W/ LUXURY W/O LUXURY WHT RED/ WIRE WHT WIRE YEL WIRE YEL/BLK WIRE

AMP FUSE 41 ANTENNA AUD SIG AUD SIG (-) AUD SIG (-) BK COAX COAX BLK WIRE BLUETOOTH WIRELESS COMMUNI- CATION ANTENNA BRN WIRE BRN/WHT WIRE CELLULAR CELLULAR TELEPHONE MICROPHONE COAX COAX ANT SIG COAX PU NAV SIG COAX W/ RADIO ANTENNA COAX W/O RADIO ANTENNA COMPUTER DATA LINES COMPUTER DATA LINES SYSTEM CTRL DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE DRAIN WIRE GMLAN GND RF AUD (+) LF AUD (+) RR AUD (-) LR AUD (+) ENABLE SIG BATT GREEN LED GRN WIRE GRY WIRE HOT AT ALL TIMES HOT AT ALL TIMES I/P FUSE BLOCK REAR (LEFT END SEAT OF DASH) ENT FUSE HOT AT ALL TIMES UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) INFO FUSE KEYPAD SIG LEFT I/P JUNCTION BLOCK (LEFT END OF DASH) LOW REF LOW REF (PINS: 7 TO 19 NOT USED) LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE NAVIGATION ANTENNA (IF EQUIPPED) (LEFT FRONT OF ROOF) NCA WIRE ORG/BLK WIRE PNK WIRE PNK/BLK WIRE RADIO RADIO ANTENNA MODULE RADIO REAR WINDOW ANTENNA RDO FUSE 42 RED LED WIRE RED/WHT WIRE RIGHT I/P JUNCTION BLOCK (RIGHT END OF DASH) RR AUD - LR AUD - SYSTEM TAN WIRE TAN/BLK WIRE VEHICLE COMMUNICATION INTERFACE MODULE (VCIM) (CENTER OF DASH) VID MDE 2 VIDEO SPLITTER CIRCUIT VOICE SIG W/ ONSTAR W/O LUXURY EDITION W/O ONSTAR WHT WIRE YEL/BLK WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 L AUD + R AUD + DRAIN WIRE 1 2 3 4 5 6 7 8 9 L AUD - L AUD + R AUD + R AUD - GMLAN 1 2 3 B+ LF AUD + RF AUD + 4 5 PNK VOICE SIG LOW REF WIRE 6 7 8 9 10 11 12 13 14 REM SIG LED CNTRL GND LF AUD - RF AUD - DRAIN WIRE 7066 6817 2550 1947 1546 2011 INTERIOR LIGHTS SYSTEM AMP FUSE 41 ANTENNA AUD SIG BLK WIRE BRN WIRE BRN/WHT WIRE CELLULAR TELEPHONE MICROPHONE CELLULAR, NAVIGATION ANTENNA (IF EQUIPPED) (LEFT FRONT OF ROOF) CELLULAR, NAVIGATION, DIGITAL RADIO ANTENNA (LEFT FRONT OF ROOF) COAX COAX ANT SIG COAX COAX COAX NAV SIG COAX W/ RADIO ANTENNA COAX W/O RADIO ANTENNA COMPUTER DATA LINES COMPUTER DATA LINES SYSTEM CTRL DIGITAL RADIO RECEIVER (IF EQUIPPED) DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE DRAIN WIRE GMLAN GND (PINS: 10-15 NOT USED) GREEN LED GRN WIRE GRY WIRE HOT AT ALL TIMES HOT AT ALL TIMES I/P FUSE BLOCK REAR (LEFT END SEAT OF DASH) ENT FUSE INFO FUSE KEYPAD SIG L AUD - R AUD - DRAIN WIRE LEFT I/P JUNCTION BLOCK (LEFT END OF DASH) LOW REF LR AUD + RR AUD + VOICE SIG LR AUD - RR AUD - LOW REF VID MDE 2 LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE NCA WIRE ORG/BLK WIRE PNK WIRE PNK/BLK WIRE RADIO RADIO ANTENNA MODULE RADIO REAR WINDOW ANTENNA RDO FUSE 42 RED LED WIRE RED/WHT WIRE RIGHT I/P JUNCTION BLOCK (RIGHT END OF DASH) SYSTEM TAN WIRE TAN/BLK WIRE TAN/WHT WIRE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) VEHICLE COMMUNICATION INTERFACE MODULE (VCIM) (CENTER OF DASH) VOICE SIG W/ ONE PIECE LIFTGATE W/ ONSTAR W/O ONSTAR WHT WIRE YEL WIRE YEL/BLK WIRE

13 14 39 GMLAN HI-SPD (-) GMLAN HI-SPD (+) SW GND 2500 2501 COMPUTER DATA LINES SYSTEM 28 27 1 GMLAN HI-SPD (+) GMLAN HI-SPD (-) P/N SIGNAL 8 9 GMLAN HI-SPD (+) GMLAN HI-SPD (-) AUTOMATIC TRANSMISSION (2-MODE HYBRID RWD) AUTOMATIC TRANSMISSION (6 SPEED A/T) AUTOMATIC TRANSMISSION INTERNAL MODE SWITCH (IMS) AUTOMATIC TRANSMISSION SHIFT LOCK BLK WIRE BLOCK BODY CONTROL MODULE (BCM) (LEFT SIDE OF DASH) BRK SW SIG COMPUTER DATA LINES SYSTEM CONTROL SOLENOID (STEERING COLUMN) CONTROL SOLENOID VALVE ASSEMBLY DRIVE MOTOR GENERATOR POWER INVERTER MODULE (RIGHT SIDE OF ENGINE COMPT) ENGINE CONTROL MODULE (ECM) (LEFT SIDE OF ENGINE COMPT) GROUND GRY WIRE HOT AT ALL TIMES LT BLU/WHT WIRE MISC-IGN FUSE 43 ORG/BLK WIRE PNK PNK PNK PNK WIRE PNK WIRE POWER DISTRIBUTION SYSTEM RUN/ CRNK RELAY RUN/CRANK RELAY CTRL SHIFT LOCK SOL SUPPLY VOLT STOP LAMP SWITCH TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TRANSMISSION CONTROL MODULE (TCM) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) WHT WIRE YEL WIRE

16 17 DATA BUS+ DATA BUS- 4 2 PNK RUN/CRK WIRE 52 1 28 27 STRT RLY P/N SIG DATA BUS+ DATA BUS- 6 SPEED A/T AUTOMATIC TRANSMISSION AUTOMATIC TRANSMISSION INTERNAL MODE SWITCH (IMS) BATTERY BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (LEFT SIDE OF DASH) COMPUTER DATA LINES SYSTEM CONTROL SOLENOID VALVE ASSEMBLY ENGINE CONTROL MODULE (ECM) (LEFT SIDE OF ENGINE COMPT) FUSE HOLDER (ON POSITIVE BATTERY POST) GRY WIRE IGNITION SWITCH OFF ORG/BLK WIRE PNK WIRE POWER DISTRIBUTION SYSTEM PPL RED WIRE RED/BLK WIRE RUN WIRE STARTER MOTOR STARTER RELAY STRTR FUSE 62 TAN WIRE TAN/BLK WIRE TRANSMISSION CONTROL MODULE (TCM) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) WHT WIRE YEL/BLK WIRE

1 1 RH ROOF RAIL MOD HIGH CTRL RH ROOF RAIL MOD LOW CTRL 13-14, 15-16, 17-18, 37-38, 39-40, 53-54) BLK/WHT WIRE CADILLAC, GMC, CHEVROLET EXCEPT HYBRID DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE GMC/ CHEVROLET, HYBRID GRY WIRE GRY/BLK WIRE INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE (SDM) (UNDER CENTER CONSOLE) LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE MANUAL LIFT GATE W/ LIFT GLASS MANUAL LIFT GATE W/O LIFT GLASS NCA WIRE ORG/ WIRE PASSENGER INFLATABLE RESTRAINT SEAT POSITION SENSOR PASSENGER SEAT BELT SWITCH PIN SHORTING BARS ENGAGED WHEN MODULE CONNECTOR IS DISCONNECTED FROM HARNESS: PNK WIRE PNK/BLK WIRE PPL PPL/WHT WIRE RIGHT FRONT INFLATABLE RESTRAINT ROOF RAIL MODULE (TOP OF RIGHT "C" PILLAR) SHORTING BAR TAN/BLK WIRE TAN/ORG WIRE TAN/WHT WIRE W/O NON-BUCKET INDIVIDUAL W/ NON-BUCKET INDIVIDUAL WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE