Chevrolet Tahoe II (1999-2006) wht Wiring diagrams

1 14 26 SUPPLY VOLTAGE SUPPLY VOLTAGE LOW REF BACK ONLY IND BACK ONLY INDICATOR BACK ONLY SELECT BACK, CUSHION SELECT BATT + BCK, CSH SELECT BLK WIRE BLU WIRE BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DDM FUSE DK BLU WIRE DK LT DK PNK WIRE DRIVER BACK HEATED SEAT ELEMENT DRIVER CUSHION HEATED SEAT ELEMENT DRIVER DOOR MODULE FRONT PASSENGER BACK HEATED SEAT ELEMENT FRONT PASSENGER CUSHION HEATED SEAT ELEMENT FRONT PASSENGER DOOR MODULE GRN WIRE GROUND HI HEAT IND HI HEAT INDICATOR HOT AT ALL TIMES I/P RELAY BLOCK LEFT I/P FUSE BLOCK LOW HEAT IND LOW HEAT INDICATOR LT BLU WIRE LT DOORS CIRCUIT BREAKER LT GRN WIRE MED HEAT IND MED HEAT INDICATOR MEMORY SEAT MODULE (UNDERSIDE OF LEFT FRONT SEAT) MEMORY/HEATED SEAT SWITCH NCA WIRE ORG/ WIRE PDM FUSE PNK WIRE PPL RED WIRE RED/WHT WIRE RIGHT I/P FUSE BLOCK RT DOORS CIRCUIT BREAKER SEATS CIRCUIT BREAKER SERIAL DATA SWITCH POWER TAN WIRE WHT WIRE YEL WIRE

12 11 10 9 8 7 6 5 4 3 2 1 COM AUD SIG 1851 372 GROUND AUD OUT - DRAIN WIRE 3 4 5 6 7 8 9 10 11 12 13 14 15 16 RT AUD + BARE BLK WIRE BLK/WHT WIRE BRN/WHT WIRE COAX ANTENNA COMPUTER DATA LINES SYSTEM DATA LINES DIGITAL RADIO ANTENNA DIGITAL RADIO RECEIVER (IF EQUIPPED) DK GRN/WHT WIRE GROUND LT AUD SIG RT AUD SIG HOT AT ALL TIMES I/P RELAY BLOCK (BELOW LOWER LEFT SIDE OF DASH) INFO FUSE LF AUD + LT GRN WIRE LT GRN/BLK WIRE NCA WIRE ORG/ WIRE REAR SEAT ENTERTAINMENT ASSEMBLY (IF EQUIPPED) SERIAL DATA SPLICE PACK UNDERHOOD FUSE BLOCK (AT LEFT SIDE OF ENGINE COMPARTMENT) WHT WIRE

12 11 10 9 8 7 6 5 4 3 2 1 COM AUD SIG 1851 372 GROUND AUD OUT - DRAIN WIRE 3 4 5 6 7 8 9 10 11 12 13 14 15 16 RT AUD + BARE BLK WIRE BLK/WHT WIRE BRN/WHT WIRE COAX ANTENNA COMPUTER DATA LINES SYSTEM DATA LINES DIGITAL RADIO ANTENNA DIGITAL RADIO RECEIVER (IF EQUIPPED) DK GRN/WHT WIRE GROUND LT AUD SIG RT AUD SIG HOT AT ALL TIMES I/P RELAY BLOCK (BELOW LOWER LEFT SIDE OF DASH) INFO FUSE LF AUD + LT GRN WIRE LT GRN/BLK WIRE ORG/ WIRE REAR SEAT ENTERTAINMENT ASSEMBLY (IF EQUIPPED) SERIAL DATA SPLICE PACK UNDERHOOD FUSE BLOCK (AT LEFT SIDE OF ENGINE COMPARTMENT) WHT WIRE

BLK WIRE BLU WIRE FRONT PASSENGER LUMBAR/ BOLSTER SWITCH FRONT PASSENGER SEAT BOLSTER MOTOR FRONT PASSENGER SEAT LUMBAR MOTOR HOT AT ALL TIMES I/P RELAY BLOCK LT DK ORG/ WIRE OUT OUT IN PNK WIRE SEATS CIRCUIT BREAKER WHT WIRE

AIR TEMPERATURE ACTUATOR (AUXILIARY) AIR TEMPERATURE ACTUATOR (LEFT) AUTO A/C AUTOMATIC LEVEL CONTROL RELAY AUTOMATIC TRANSMISSION BODY CONTROL MODULE BRAKE FUSE BRN WIRE CRANK FUSE CRUISE CONTROL ON/OFF SWITCH ELECTRONIC BRAKE CONTROL MODULE ELECTRONIC SUSPENSION CONTROL MODULE ESCALADE EXT EXCEPT ESCALADE EXT FROM IGN A FUSE (DIAGRAM 1 OF 6) FRONT AXLE ACTUATOR FUSE HTR/AC FUSE CRUISE FUSE HVAC 1 FUSE HVAC CONTROL MODULE HVAC CONTROL PROCESSOR (AUXILIARY) HVAC CONTROL ASSEMBLY (REAR AUXILIARY) IGN 0 FUSE IGN 3 FUSE IGNITION SWITCH LEFT I/P FUSE BLOCK (BEHIND LOWER LEFT SIDE OF DASH) LOCK OFF MAN A/C MANUAL A/C AUTO A/C MODE ACTUATOR (AUXILIARY) AUTOMATIC LEVEL CONTROL RELAY MODE ACTUATOR RECIRCULATION ACTUATOR AIR TEMPERATURE ACTUATOR (RIGHT) ORG/ WIRE PNK PNK WIRE PNK WIRE POWERTRAIN CONTROL MODULE PPL PNK WIRE REAR WHEEL STEERING CONTROL MODULE RED WIRE RIGHT I/P FUSE BLOCK (LOWER RIGHT SIDE OF DASH) RUN WIRE STEERING WHEEL SPEED/ POSITION SENSOR STOPLAMP SWITCH TRACTION CONTROL SWITCH TBC IGN 0 FUSE THEFT DETERRENT CONTROL MODULE TRANSFER CASE SHIFT CONTROL SWITCH TURN SIGNAL/ MULTIFUNCTION SWITCH UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT, NEAR BATTERY) W/ VSES W/O ULT W/ ULT WHT WIRE YEL WIRE

AUTOMATIC LEVEL RELAY AUXILIARY POWER CENTER FUSE/ RELAY BLOCK B/U LP FUSE BLK WIRE BODY CONTROL MODULE BRN WIRE CLIMATE CONTROL SEAT MODULE (DRIVER) CLIMATE CONTROL SEAT MODULE (FRONT PASSENGER) CLIMATE CONTROL SEAT MODULE (LEFT REAR) CLIMATE CONTROL SEAT MODULE (RIGHT REAR) CONVERTER) DEFOG RELAY DK BLU WIRE DRIVER, PASSENGER SWITCH ELECTRONIC SUSPENSION CONTROL MODULE EXC 8.L W/O CALIFORNIA LEV FROM IGN 3 FUSE (DIAGRAM 5 OF 6) FROM IGN B FUSE (DIAGRAM 1 OF 6) FUSE HEATED OXYGEN SENSOR BANK 1 SENSOR 1 HEATED OXYGEN SENSOR BANK 2 SENSOR 1 HEATED OXYGEN SENSOR BANK 1 SENSOR 2 HEATED OXYGEN SENSOR BANK 2 SENSOR 2 HEATED/ COOLED CUP HOLDER RELAY I/P RELAY BLOCK (UNDER LEFT SIDE OF DASH, NEAR KICK PANEL) IGN E FUSE A/C COMP RELAY IGNITION SWITCH INFLATABLE RESTRAINT PASSENGER PRESENCE MODULE INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE INSIDE REARVIEW MIRROR INSTRUMENT PANEL CLUSTER REAR OBJECT SENSOR CONTROL MODULE INSTRUMENT PANEL CLUSTER TURN SIGNAL/ MULTI- FUNCTION SWITCH LEFT I/P FUSE BLOCK (BEHIND LOWER LEFT SIDE OF DASH) LEFT REAR SWITCH LOCK LOCK OFF LOGIC LT BLU WIRE NCA WIRE OFF ORG/ WIRE PARK/NEUTRAL POSITION SWITCH PNK PNK PNK PNK PNK PNK WIRE PNK PNK PNK WIRE PNK PNK WIRE PNK WIRE REAR WIPER/ WASHER SWITCH RED WIRE RELAY A RELAY B RIGHT REAR SWITCH RR WPR FUSE RUN WIRE SEO ACCY FUSE SEO IGN FUSE SIR FUSE TAN WIRE TBC ACCY FUSE TBC IGN 1 FUSE TO IGN 1 RELAY (DIAGRAM 3 OF 6) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT, NEAR BATTERY) WHT WIRE WINDSHIELD WIPER MOTOR MODULE WS WPR FUSE YEL WIRE

2 14 15 20 21 22 KEY SW BATTERY KEY SW SIG UNLOCK CTRL LOCK CTRL SERIAL DATA 2 3 BATTERY GROUND 2 4 BATTERY GROUND 6 10 11 14 22 24 KEY SW LOCK CTRL UNLOCK CTRL BATTERY SERIAL DATA KEY SW SIG BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (ON LOWER LEFT SIDE OF DASH, BELOW STEERING COLUMN) BODY RELAY BLOCK (UNDER LEFT SIDE OF DASH) BRN WIRE CARGO DOOR CONTACT PLATE CARGO/LIFTGATE DOOR LOCK ACTUATOR DDM FUSE PDM FUSE DK BLU WIRE DRIVER DOOR MODULE (INSIDE DRIVER DOOR) FRONT PASSENGER DOOR MODULE (INSIDE FRONT PASSENGER DOOR) GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES IGN KEY SW IGNITION KEY ALARM SWITCH (ON IGNITION KEY CYLINDER) LEFT I/P FUSE BLOCK LEFT I/P FUSE BLOCK (BEHIND LEFT SIDE OF DASH) LEFT I/P FUSE BLOCK (ON LOWER LEFT SIDE OF DASH) LEFT REAR DOOR LOCK ACTUATOR LOCK RELAY LOCKS FUSE LT BLU WIRE LT DOORS CIRCUIT BREAKER LT GRN WIRE ORG/ WIRE POWERTRAIN CONTROL MODULE (LEFT FRONT SIDE OF ENGINE COMPARTMENT) RIGHT I/P FUSE BLOCK (LOWER RIGHT SIDE OF DASH) RIGHT REAR DOOR LOCK ACTUATOR SERIAL DATA TAN WIRE TAN/BLK WIRE UNLOCK CTRL LOCK CTRL BATTERY SERIAL DATA LFTGATE LK REL UNLOCK RELAY W/ CARGO DOORS W/ CARGO DOORS W/O CARGO DOORS WHT WIRE YEL WIRE

BLK WIRE BODY RELAY BLOCK (UNDER LEFT SIDE OF DASH) BRN WIRE CARGO DOOR KEY SWITCH DK BLU WIRE DOOR CONTACT PLATE DRIVER MINI-WEDGE DOOR JAMB SWITCH ECC FUSE FRONT PASSENGER MINI-WEDGE DOOR JAMB SWITCH GRY WIRE HOT AT ALL TIMES INSTRUMENT PANEL CLUSTER KEY SW LEFT I/P FUSE BLOCK (BEHIND LOWER LEFT SIDE OF DASH) LIFTGATE ACTUATOR LIFTGATE KEY SWITCH LIFTGATE LOCK RELAY LOCK LT BLU WIRE LT GRN WIRE ORG/ WIRE RIGHT I/P FUSE BLOCK RIGHT I/P FUSE BLOCK (LOWER RIGHT SIDE OF DASH) RT DOOR CIRCUIT BREAKER SPLICE PACK TAN WIRE TBC BATT FUSE UNDERHOOD FUSE BLOCK (AT LEFT SIDE OF ENGINE COMPT) W/ CARGO DOORS W/O CARGO DOORS WHT WIRE

2 3 1340 1050 BATTERY GROUND 22 14 1046 4140 CLASS 2 SERIAL DATA BATTERY 22 14 1047 4240 CLASS 2 SERIAL DATA BATTERY 4 2 1050 1240 GROUND BATTERY 8 7 4 3 PNK LOW REF MIR SIGNAL MIR SENS LOW REF MIR HTR LOW REF WIRE BLK WIRE BRN WIRE CLASS 2 SERIAL DATA COMPUTER DATA LINES SYSTEM DDM FUSE DK BLU WIRE DK GRN WIRE DOWN DRIVER DOOR MODULE (IN DRIVER'S DOOR) DRIVER MIRROR DRIVER OUTSIDE REARVIEW MIRROR ELECTRO- CHROMIC FOLDING/ TELESCOPING MOTOR FOLDING/ TELESCOPING MOTOR HORIZONTAL FRONT PASSENGER OUTSIDE REARVIEW MIRROR FRONT PASSENGER DOOR MODULE (IN RIGHT FRONT DOOR) GRY WIRE HEATING ELEMENT HEATING ELEMENT (NEAR RIGHT "A" PILLAR) HOT AT ALL TIMES HOT AT ALL TIMES LEFT I/P FUSE BLOCK (LOWER LEFT SIDE OF DASH) HVAC CONTROL MODULE (IN CENTER OF DASH) I/P RELAY BLOCK (NEAR LEFT KICK PANEL) LEFT LEFT I/P FUSE BLOCK (LOWER LEFT SIDE OF DASH) LEFT UP HORIZONTAL LEFT UP VERTICAL LT BLU WIRE LT DOORS CIRCUIT BREAKER LT GRN WIRE ORG/ WIRE PASS- ENGER MIRROR PDM FUSE PNK WIRE PPL PPL/WHT WIRE RED WIRE RIGHT RIGHT I/P FUSE BLOCK (LOWER RIGHT SIDE OF DASH) RT DOOR CIRCUIT BREAKER SWITCH POWER TAN WIRE VERTICAL WHT WIRE WHT/RED WIRE YEL WIRE

B+ PWR WND LOCKOUT LR SIGNAL B+ PWR WND LOCKOUT RR SIGNAL B+ VOLT BCM CLASS 2 SERIAL DATA BLK WIRE BLU WIRE BODY CONTROL MODULE (LEFT SIDE OF DASH) BODY RELAY BLOCK BRN WIRE BRN/WHT WIRE DDM CLASS 2 SERIAL DATA DK BLU WIRE DK GRN WIRE DRIVER DOOR MODULE DRIVER WINDOW MOTOR FRONT PASSENGER DOOR MODULE FRONT PASSENGER WINDOW MOTOR GROUND GRY/BLK WIRE HOT AT ALL TIMES ILLUMINATION ILLUMINATION PWR WND MOTOR RR REAR DOWN CNTRL LEFT FRONT WINDOW LEFT I/P FUSE BLOCK (LEFT SIDE OF DASH) LEFT REAR WINDOW MOTOR LEFT REAR WINDOW SWITCH LOGIC LR WINDOW LT BLU WIRE LT DOORS CIRCUIT BREAKER LT GRN WIRE ORG/ WIRE PWR WND LOCKOUT LR SIG PWR WND LOCKOUT RR SIG PWR WND MOTOR LEFT REAR WINDOW LR REAR UP CNTRL PWR WND MOTOR LF DOWN CNTRL PWR WND MOTOR LF UP CNTRL PWR WND MOTOR LR REAR DOWN CNTRL PWR WND MOTOR RF DOWN CNTRL PWR WND MOTOR RF UP CNTRL PWR WND MOTOR RR REAR UP CNTRL RIGHT REAR WINDOW PWR WND SW LR DOWN SIG PWR WND SW LR UP SIG PWR WND SW RR DOWN SIG PWR WND SW RR UP SIG PWR WND SWITCH LR DOWN SIGNAL PWR WND SWITCH LR UP SIGNAL PWR WND SWITCH RR DOWN SIGNAL PWR WND SWITCH RR UP SIGNAL RIGHT I/P FUSE BLOCK (RIGHT SIDE OF DASH) RIGHT REAR WINDOW MOTOR RIGHT REAR WINDOW SWITCH RR WINDOW RT DOORS CIRCUIT BREAKER SPLICE PACK SWITCH POWER TAN WIRE WHT WIRE WINDOW DOWN WINDOW RIGHT FRONT WINDOW UP YEL WIRE