Chevrolet Tahoe III (2006-2014) low ref Wiring diagrams

1 4 5 6 3 GND GND B+ B+ 10 11 PNK SENS SIG WIRE 5060 5285 COMPUTER DATA LINES SYSTEM 9 10 PPL MTR CNTL MTR CNTL ADJUSTABLE PEDAL POSITION SENSOR BLK WIRE BRN/WHT WIRE CADILLAC CHEVROLET/GMC COMPUTER DATA LINES SYSTEM DIMMING CTRL DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE DRIVER DOOR LOCK/ WINDOW SWITCH DRIVER MEMORY SEAT MODULE (UNDER DRIVER'S SEAT) DRIVER SEAT 2 CIRCUIT BREAKER DRIVER'S MEMORY SEAT CIRCUIT ELECTRONIC ADJUSTABLE PEDAL ASSEMBLY (BRAKE PEDAL ASSEMBLY) EXIT GMLAN GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT AT ALL TIMES I/P FUSE BLOCK (LEFT END OF DASH) DSM FUSE I/P MULTI-FUNCTION SWITCH LEFT I/P JUNCTION BLOCK LEFT I/P JUNCTION BLOCK (LEFT END OF DASH) LO REF LOW REF LT GRN WIRE ORG/ WIRE ORG/BLK WIRE PNK WIRE POWER DISTRIBUTION SYSTEM PPL PPL SW SIG PPL/WHT WIRE RED/WHT WIRE SERIAL DATA SW SIG 16 5 SW SIG TAN WIRE WHT WIRE YEL WIRE YEL/BLK WIRE

B+ SERIAL DATA BLK WIRE BLK/WHT WIRE BLU WIRE BRN WIRE COMPUTER DATA LINES SYSTEM COURTESY LAMP DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE DRIVER DOOR LOCK/ WINDOW SWITCH DRIVER OUTSIDE REARVIEW MIRROR EXCEPT 6.0L (VIN J) EXCEPT HYBRID HYBRID EXTERIOR COURTESY LAMP DRIVER OUTSIDE REARVIEW MIRROR EXTERIOR ILLUMINATION LAMP PASSENGER OUTSIDE REARVIEW MIRROR FROM LEFT TAIL/STOP LAMP (DIAGRAM FROM LT PRK FUSE 26 (DIAGRAM 1 OF 2) GRD GRN WIRE GRY WIRE HOT AT ALL TIMES I/P FUSE BLOCK (LEFT END OF DASH) INSTRUMENT PANEL CLUSTER IPC FUSE 46 LEFT I/P JUNCTION BLOCK (LEFT END OF DASH) LEFT TURN IND LEFT TURN SIGNAL REPEATER LAMP LOGIC LOW REF LOWER RIGHT TAIL/STOP, TURN SIGNAL LAMP LT BLU WIRE LT BLU/WHT WIRE MIRROR MJR RIGHT TAIL/ TURN SIGNAL LAMP MNR MNR MJR RIGHT TAIL/ STOP LAMP ORG/ WIRE PASSENGER DOOR LOCK/ WINDOW SWITCH LOW REF PASSENGER OUTSIDE REARVIEW POWER DISTRIBUTION SYSTEM RED/WHT WIRE RIGHT BACKUP LAMP RIGHT END OF DASH) RIGHT FRONT SIDE MARKER LAMP RIGHT I/P JUNCTION BLOCK RIGHT PARK/ TURN SIGNAL LAMP RIGHT REAR SIDE MARKER LAMP RIGHT REAR TURN SIGNAL LAMP RIGHT TAIL/ STOP LAMP RIGHT TURN IND RIGHT TURN SIGNAL REPEATER LAMP RT PRK FUSE 27 SERIAL DATA TRAILER PROVISION (BLUNT CUT) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) UPPER RIGHT TAIL/STOP, TURN SIGNAL LAMP W/ ENLARGED TURN SIGNAL LAMP W/ HEATED FOLDING MIRROR W/ ONE PIECE LIFTGATE W/ W/O HEATED HEATED FOLDING FOLDING MIRROR MIRROR W/O HEATED FOLDING MIRROR W/O ONE PIECE LIFTGATE WHT WIRE YEL WIRE YEL/BLK WIRE

1546 1947 1946 1999 FL AUD - LF AUD - 2099 7396 DRAIN WIRE 6978 2550 512 511 546 599 7066 340 LR AUD - GND RF AUD + LF AUD + AMP FUSE 41 ANTENNA AUD SIG BLK WIRE BLUETOOTH WIRELESS COMUNICATION INTERFACE ANTENNA BRN WIRE BRN/WHT WIRE CELLULAR TELEPHONE MICROPHONE CELLULAR, NAVIGATION ANTENNA (IF EQUIPPED) (LEFT FRONT OF ROOF) COAX COAX COAX COMPUTER DATA GMLAN LINES SYSTEM DRAIN WIRE COMPUTER DATA LINES COMPUTER DATA LINES SYSTEM CTRL DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE DRAIN WIRE GMLAN GREEN LED GRN WIRE GRY WIRE HOT AT ALL TIMES HOT AT ALL TIMES I/P FUSE BLOCK (LEFT END OF DASH) INFO FUSE HOT AT ALL TIMES UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) KEYPAD SIG LEFT I/P JUNCTION BLOCK (LEFT END OF DASH) LOW REF LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE NCA WIRE ORG/ WIRE ORG/BLK WIRE PNK WIRE PNK/BLK WIRE RADIO RADIO ANTENNA MODULE RADIO REAR WINDOW ANTENNA RDO FUSE 42 REAR SEAT ENT FUSE RED LED WIRE RED/WHT WIRE RIGHT I/P JUNCTION BLOCK (RIGHT END OF DASH) RR AUD + LR AUD + E SIG B+ RR AUD - LR AUD - SYSTEM TAN WIRE TAN/BLK WIRE VEHICLE COMMUNICATION INTERFACE MODULE (VCIM) (CENTER OF DASH) VID MDE 2 VOICE SIG W/ ONSTAR W/O ONSTAR W/ RADIO ANTENNA W/O RADIO COAX ANTENNA COAX ANT SIG COAX W/ RADIO ANTENNA COAX NAV SIG WHT 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

1272 890 PPL LOW REF PRESS SENS SIG 14 13 15 LOW REF 5 VOLT REF BRK SENS SIG 5985 439 440 PNK WIRE ACCELERATOR PEDAL POSITION (APP) SENSOR (ACCELERATOR PEDAL ASSEMBLY) AIR CONDITIONING SYSTEM AIR CONDITIONING SYSTEM 1274 472 2760 BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (LEFT SIDE OF ENGINE COMPT) BRAKE PEDAL POSTION (BPP) SENSOR BRAKE SW SIG BANK 1 SENS 2 BANK 1 SENS 2 PRESS SENS SIG LOW REF BRN WIRE COMPUTER DATA LINES SYSTEM COOLING FANS SYSTEM COMPUTER DATA LINES SYSTEM DATA BUS - DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE ENGINE CONTROL MODULE (ECM) (LEFT SIDE OF ENGINE COMPT) EXCEPT 6.0L 6.0L EXTENSION FLOW CONTROL MODULE) FRONT FUEL PUMP, SENDER ASSEMBLY (EXCEPT 6.0L) (PRIMARY FUEL PUMP ASSEMBLY) FUEL PRESSURE SENSOR GRY WIRE GRY/WHT WIRE IAT SENS SIG LOW REF IGN VOLT LOW REF LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE MAF NCA WIRE ORG/BLK WIRE PNK W/O INTEGRATED TRAILER BRAKE PNK PNK W/ INTEGRATED TRAILER BRAKE WIRE PNK WIRE PPL PPL 6.0L PPL PPL EXCEPT 6.0L PPL LEVEL SENS SIG FAN RLY CTRL SERIAL DATA IGN VOLTAGE B+ PPL/WHT WIRE PUMP CTRL RED/WHT WIRE REF VOLT RELAY CTRL SENS SIG SERIAL DATA SHLD TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TRANSMISSIONS SYSTEM W/ ACTIVE 2 SPEED PUSH BUTTON CONTROL TRANSFER CASE W/O ACTIVE 2 SPEED PUSH BUTTON CONTROL TRANSFER CASE WHT WIRE WHT/BLK WIRE YEL WIRE

18 19 PNK PNK WIRE 6.0L 6.0L 6.0L AIR CONDITIONING SYSTEM AUX HVAC-IGN FUSE 48 BANK 1 SENS 2 BANK 2 SENS 2 BLK/WHT WIRE BRN WIRE BRN/WHT WIRE CLUTCH RLY CTRL DK GRN WIRE DK GRN/WHT WIRE ECM BATT FUSE 12 ECM-IGN FUSE 56 ECM/THROT CONT FUSE 5 ENABLE RLY CTRL ENG FUSE 4 ENGINE CONTROL MODULE (ECM) (LEFT SIDE OF ENGINE COMPT) EVAPORATIVE EMISSION (EVAP) CANISTER VENT SOLENOID VALVE (ON EVAP CANISTER) EXCEPT 6.0L FAN RLY CTRL FSCM FUSE 21 GROUND GRY/WHT WIRE HEATED OXYGEN SENSOR HOT AT ALL TIMES HOT W/ RUN/ CRANK RELAY ENERGIZED IGN INJ-A FUSE 24 INJ-B FUSE 13 IPC FUSE 46 LOW REF LT BLU WIRE LT GRN/BLK WIRE LVL SENS SIG MAF SENS SIG MIL CTRL NCA WIRE ORG/WHT WIRE PNK PNK PNK WIRE PNK PNK WIRE PNK WIRE PNK/BLK WIRE PNK/WHT WIRE POWER DISTRIBUTION SYSTEM PPL PPL/WHT WIRE PUMP RLY CTRL PWR/ TRN RELAY RED/WHT WIRE RLY COIL CTRL SENSOR 2 (UNDER LEFT SIDE OF ENGINE COMPT, IN EXHAUST) SENSOR 2 (UNDER RIGHT SIDE OF ENGINE COMPT, IN EXHAUST) SIG RETURN SNSR FUSE 18 SNSR FUSE 8 SPEED SIG STARTING/ CHARGING SYSTEM TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TCM- BATT FUSE 14 TOS SIG TRANSMISSIONS, CRUISE CONTROL SYSTEMS VENT SOL CTRL W/ HYDRAULIC POWER BRAKE WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

18 19 PNK WIRE BANK 1 SENS 1 BANK 2 SENS 1 BLK WIRE BRN WIRE CAMSHAFT POSITION (CMP) SENSOR (LOWER FRONT OF ENGINE) CRANKSHAFT POSITION (CKP) SENSOR (RIGHT REAR OF ENGINE) DK BLU WIRE DK BLU/WHT WIRE DK GRN/WHT WIRE DUTY CYCLE SIG ECT SENS SIG ENGINE COOLANT TEMPERATURE (ECT) SENSOR (FRONT OF LEFT CYLINDER HEAD) ENGINE OIL PRESSURE (EOP) SENSOR (TOP REAR OF ENGINE) GRY WIRE GRY/BLK WIRE GRY/WHT WIRE HEATED OXYGEN SENSOR INJ 1 CTRL INJ 2 CTRL INJ 3 CTRL INJ 4 CTRL INJ 5 CTRL INJ 6 CTRL INJ 7 CTRL INJ 8 CTRL KNOCK SENSOR (KS) 1 (LEFT SIDE OF ENGINE) KNOCK SENSOR (KS) 2 (RIGHT SIDE OF ENGINE) LOW REF LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR (TOP REAR OF ENGINE) NCA WIRE ORG/ WIRE ORG/BLK WIRE PNK GRY/WHT WIRE PNK PNK WIRE PNK WIRE PNK/BLK WIRE PNK/WHT WIRE PPL PPL/WHT WIRE PURGE SOL CTRL SENS 1 SIG SENS 2 SIG SENSOR 1 (UNDER LEFT SIDE OF ENGINE COMPT, IN EXHAUST) SENSOR 1 (UNDER RIGHT SIDE OF ENGINE COMPT, IN EXHAUST) SOL CTRL SOL CTRL 1 SOL CTRL 2 SOL CTRL 3 SOL CTRL 4 STARTING/ CHARGING SYSTEM TAC MTR CTRL 1 TAC MTR CTRL 2 TAN PPL/WHT WIRE TAN WIRE TAN/WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

BLK WIRE BODY MOUNT) BRN WIRE COMPUTER DATA LINES SYSTEM DATA BUS - DK GRN WIRE DK GRN/WHT WIRE EXTENSION GRY WIRE GRY/WHT WIRE IGN VOLT IGNITION COILS (LEFT SIDE OF ENGINE) LINES SYSTEM COMPUTER DATA LOW REF LT BLU WIRE NCA WIRE ORG/ WIRE PNK PNK PNK WIRE PNK PPL WIRE PNK WIRE PPL PUMP CTRL RED/WHT WIRE REF VOLT RELAY CTRL SENS SIG SERIAL DATA SHIELD SPARK PLUG TAN WIRE TAN/BLK WIRE W/O TRAIL BRAKE, 20 SERIES YEL WIRE

BANK 1 SENS 1 BANK 2 SENS 1 BLK WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE ECM/THROT CONT FUSE 5 ENG FUSE 4 ENGINE CONTROL MODULE (ECM) (LEFT FRONT OF ENGINE COMPT) GRY WIRE GRY/BLK WIRE GRY/WHT WIRE HOT AT ALL TIMES IAT SENS SIG IGN COIL 2 CTRL IGN COIL 3 CTRL IGN COIL 4 CTRL IGN COIL 5 CTRL IGN COIL 6 CTRL IGN COIL 7 CTRL IGN COIL 8 CTRL IGN VOLT INJ-A FUSE 24 INJ-B FUSE 13 INJECTOR 1 CTRL INJECTOR 2 CTRL INJECTOR 3 CTRL INJECTOR 4 CTRL INJECTOR 5 CTRL INJECTOR 6 CTRL INJECTOR 7 CTRL INJECTOR 8 CTRL LOW REF LT BLU WIRE LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN/BLK WIRE MAF SENS SIG ORG/ WIRE ORG/BLK WIRE ORG/WHT WIRE PNK PNK PNK PNK WIRE PNK PNK PNK WIRE PNK PNK WIRE PNK WIRE PNK/BLK WIRE PNK/WHT WIRE POS SENS SIG PPL PPL/WHT WIRE PRESS SENS SIG PWR/ TRN RELAY SENS 1 SIG SENS 2 SIG SNSR FUSE 18 SNSR FUSE 8 TAN WIRE TAN/BLK WIRE TAN/WHT WIRE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) WHT/BLK WIRE YEL WIRE YEL/BLK WIRE