Chevrolet Tahoe I (1995-1999) hot in run, bulb test or start Wiring diagrams

29 30 VSS VSS 5 15 4 MIL IND UPSHIFT IND SPEEDO ACCY AIR BAG DAYTIME RUNNING LAMPS ANTI-LOCK BRAKES ANTI-LOCK BRAKES SYSTEM BALANCE FUEL GAGE SENDER (IN REAR FUEL TANK) BLK WIRE BLK/WHT WIRE BRAKE IND IN BRAKE PRESSURE MODULATOR VALVE (LEFT FRONT WHEELHOUSE) BRAKE PRESSURE WARNING SWITCH (ON REAR OF BRAKE PRESSURE MODULATOR VALVE BODY) BRAKE/ BRN WIRE BRN/WHT WIRE BULB TEST CHECK GAUGES CHECK GAUGES LAMP DRIVER DAYTIME RUNNING LAMPS MODULE (LEFT SIDE OF I/P) DIODE 1 DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE ENGINE CONTROLS SYSTEM (FUEL PUMP BALANCE RELAY) ENGINE COOLANT TEMPERATURE SENDER (LEFT CYLINDER HEAD) FUEL GAUGE FUEL PUMP BALANCE MODULE (NEAR TRANSMISSION CROSSMEMBER) FUEL PUMP, SENDER (IN FRONT FUEL TANK) FUEL PUMP, SENDER (IN FUEL TANK) FUEL PUMP/ OIL PRESSURE SWITCH, SENDER (LEFT REAR SIDE OF ENGINE) GRY WIRE HEADLIGHTS SYSTEM HI BEAM HOT IN RUN OR START HOT IN RUN, BULB TEST OR START I/P FUSE BLOCK (BEHIND LEFT SIDE OF I/P) IGN IGN E MINI FUSE IGNITION COIL (RIGHT REAR SIDE OF ENGINE) IGNITION SWITCH ILLUM ILLUMINATION INSTRUMENT CLUSTER LED DIMMING LEFT TURN LOCK OFF LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE M/T A/T PNK WIRE OIL GAUGE PARITY PRNDL PARK BRAKE WARNING SWITCH (LEFT SIDE OF I/P) PNK WIRE PPL PPL PPL PPL/WHT WIRE PRNDL PRNDL A PRNDL B PRNDL C RIGHT TURN RUN WIRE SAFETY BELT SERVICE ENGINE SOON STARTING/CHARGING SYSTEM SUPPLEMENTAL RESTRAINTS SYSTEM TACH TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TEMP GAUGE TRANS FUSE 20 GAUGES FUSE 4 TRANSMISSION RANGE SELECTOR (LEFT SIDE OF TRANSMISSION) TWISTED PAIR UNDERHOOD FUSE-RELAY CENTER UNDERHOOD FUSE-RELAY CENTER (LEFT REAR OF ENGINE COMPT) UPSHIFT (M/T ONLY) VEHICLE CONTROL MODULE (LEFT FRONT WHEELHOUSE) VEHICLE SPEED SENSOR (LEFT REAR OF TRANSMISSION) VOLTMETER SPEEDOMETER W/ DUAL FUEL TANKS W/O DUAL FUEL TANKS WARNING SYSTEMS WHT TAN/ WIRE WHT WIRE YEL WIRE

ACCY ANTI-LOCK BRAKES SYSTEM BALANCE FUEL GAGE SENDER (IN REAR FUEL TANK) BLK WIRE BLK/WHT WIRE BRAKE IND IN BRAKE PRESSURE MODULATOR VALVE (LEFT FRONT WHEELHOUSE) BRAKE PRESSURE WARNING SWITCH (ON REAR OF BRAKE PRESSURE MODULATOR VALVE BODY) BRN WIRE BULB TEST DAYTIME RUNNING LAMPS MODULE (LEFT SIDE OF I/P) DIODE 1 DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE ENG-1 MINI FUSE ENGINE CONTROLS SYSTEM (FUEL PUMP BALANCE RELAY) ENGINE CONTROLS SYSTEM TRANSMISSION SYSTEM ENGINE CONTROLS SYSTEM FUEL GAGE SENDER FUEL PUMP/ SENDER GAUGES FUSE 4 HOT IN RUN, BULB TEST OR START I/P FUSE BLOCK (BEHIND LEFT SIDE OF I/P) IGN E MINI FUSE IGNITION SWITCH LOCK OFF LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE M/T A/T PARK BRAKE WARNING SWITCH (LEFT SIDE OF I/P) PNK PNK WIRE PNK WIRE PPL PPL/WHT WIRE RADIO RUN WIRE TAN/WHT WIRE TRANS FUSE 20 TWISTED PAIR UNDERHOOD FUSE-RELAY CENTER (LEFT REAR OF ENGINE COMPT) VEHICLE SPEED SENSOR (LEFT REAR OF TRANSMISSION) VEHICLE SPEED SENSOR BUFFER (BEHIND RIGHT SIDE OF I/P) W/ DUAL FUEL TANKS W/O DUAL FUEL TANKS WHT TAN/ WIRE WHT WIRE

1-2 SHIFT SOL 1-2 SHIFT SOLENOID 2-3 SHIFT SOL 2-3 SHIFT SOLENOID A/T ISS SENS HI IN A/T ISS SENS IN A/T ISS SENS LO IN A/T ISS SENSOR OUT ACCELERATOR PEDAL POSITION MODULE (PART OF ACCELERATOR PEDAL) APP 1 SIGNAL IN APP 2 SIGNAL IN APP 3 SIGNAL IN AUTOMATIC TRANSMISSION AUTOMATIC TRANSMISSION INPUT SHAFT SPEED SENSOR (LEFT FRONT OF TRANSMISSION) BATTERY IN BLK WIRE BLK/WHT WIRE BLU/WHT WIRE BRAKE FUSE 18 BRAKE SWITCH ASSEMBLY (ON BRAKE PEDAL BRACKET) BRAKE SWITCH IN BRN WIRE BRN/WHT WIRE CLASS II DATA DK BLU WIRE DK GRN WIRE ECM-B FUSE ECT SENSOR IN ENGINE COOLANT TEMP SENSOR (NEAR THERMOSTAT HOUSING) FRONT WHEEL LOCK FUEL PUMP, OIL PRESS SWITCH/ SENDER, FUEL PUMP RELAY GAUGES FUSE 4 GROUND GRY WIRE GRY/BLK WIRE HI PPL HOT AT ALL TIMES HOT IN RUN HOT IN RUN OR START HOT IN RUN OR START UNDERHOOD FUSE/RELAY CENTER ECM 1 FUSE HOT IN RUN, BULB TEST OR START I/P FUSE BLOCK IGNITION IN INSTRUMENT CLUSTER LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE MALFUNCTION INDICATOR LAMP MIL CONTROL ORG/ WIRE PCM GROUND PCS SOL HI OUT PCS SOL LO OUT PNK PNK WIRE PNK WIRE POWER POWERTRAIN CONTROL MODULE (RIGHT SIDE OF DASH NEAR BLOWER MOTOR) PPL PPL DATA LINK CONNECTOR (UNDER LEFT SIDE OF DASH) PPL/WHT WIRE PRESS CTRL SOLENOID LO RED WIRE RED/BLK WIRE SENSOR GROUND STOP/HAZ FUSE 1 STOPLAMP SWITCH IN TAN WIRE TAN/WHT WIRE TCC PWM SOL TCC PWM SOLENOID TFT SENSOR IN TRANS FLUID TEMP SENSOR TRANS FUSE 20 TRANS RANGE "A" TRANS RANGE "B" TRANS RANGE "C" TRANS RANGE PRESSURE SWITCH ASSEMBLY TRANS RANGE SWITCHES TRANSFER CASE CIRCUIT PNK WIRE TRANSFER CASE, AXLE SWITCHES TURN/ HAZARD SWITCH, CHIME MODULE VEHICLE SPEED SENSOR VEHICLE SPEED SENSOR (VSS) ADAPTOR VEHICLE SPEED SENSOR BUFFER (RIGHT SIDE OF DASH) VSS HI IN VSS IN VSS LO IN VSS OUT WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

A/T PNK WIRE BACKUP LAMPS SIGNAL (TRAILER TOW PACKAGE) (WIRE CUT AND TAPED TO HARNESS) BLK WIRE CONVENIENCE CENTER (UNDER LEFT SIDE OF DASH) FROM LICENSE LAMP BREAKOUT) HOT IN RUN, BULB TEST OR START I/P FUSE BLOCK LEFT BACKUP LAMP LT GRN WIRE M/T MIRRORS SYSTEM PARK/NEUTRAL POSITION SWITCH (LEFT TOP OF TRANS) PNK WIRE RIGHT BACKUP LAMP TURN B/U FUSE 16

4-DOOR TRUCKS ONLY BLK WIRE CARGO DOOR JAMB SWITCH (SUBURBAN, TAHOE, YUKON) CONVENIENCE CENTER (LEFT SIDE OF I/P) CTRL CTSY FUSE 3 DOME DEFEAT DOOR JAMB FRONT DOME LAMP GAGES FUSE 4 GRY WIRE HEADLAMP AND PANEL DIMMER SWITCH DOME LAMP DEFEAT COURTESY LAMPS HOT AT ALL TIMES HOT IN RUN, BULB TEST OR START I/P COMPARTMENT BOX LAMP I/P FUSE BLOCK IGN SW INTERIOR LAMP CONTROL MODULE (UNDER CENTER OF I/P) LAMP OUT LEFT FRONT DOOR JAMB SWITCH LEFT I/P COURTESY LAMP LEFT ILLUMINATED VANITY MIRROR LEFT REAR DOOR JAMB SWITCH MIRRORS SYSTEM ORG/ WIRE PNK WIRE PPL PPL (I/P HARN, ARRROX 8 CM IN CROSSBODY HARN BREAKOUT) REAR DOME LAMP REMOTE CONTROL DOOR LOCK RECEIVER (UNDER CENTER OF I/P) RIGHT FRONT DOOR JAMB SWITCH RIGHT I/P COURTESY LAMP RIGHT ILLUMINATED VANITY MIRROR RIGHT REAR DOOR JAMB SWITCH UNDERHOOD FUSE-RELAY CENTER HORN MINI FUSE UNDERHOOD LAMP PPL UNDERHOOD REEL LAMP W/ RKE W/O RKE WHT WIRE

AUXILIARY LEAD (TAPED TO HARNESS) BACKUP LIGHTS CIRCUIT BLK WIRE BLU WIRE BRN WIRE CAB CLEARANCE LAMPS CARGO LAMP CR LP CARGO LAMP SWITCH CENTER HIGH MOUNT STOP LAMP CH- MSL LP CLUSTER BREAKOUT) COLUMN HARNESS BREAKOUT) CONVENIENCE CENTER (UNDER LEFT SIDE OF DASH) CRUISE CONTROL SYSTEM CTSY FUSE 3 DK BLU WIRE DK GRN WIRE GRN WIRE GRY WIRE HARNESS BREAKOUT) (W/ TRAILER PKG) HAZARD NORMAL HEADLAMP, PANEL DIMMER SWITCH HEADLIGHTS SYSTEM HOT AT ALL TIMES HOT AT ALL TIMES UNDER- HOOD FUSE- RELAY CENTER (LEFT REAR OF ENGINE COMPT.) HOT IN RUN, BULB TEST OR START I/P FUSE BLOCK INSTRU- MENT CLUSTER RIGHT TURN INDIC INTERIOR LIGHTS SYSTEM CONVENIENCE CENTER (UNDER LEFT SIDE OF DASH) LEFT LEFT FRONT PARK/ TURN LAMPS LEFT HEADLAMP BREAKOUT) LEFT LICENSE LAMP TOWARD TAILLAMP BREAKOUT) LEFT TAIL/ STOP/ TURN LAMP LEFT TURN INDIC LH RH LICENSE LAMP LICENSE LAMP BREAKOUT) LICENSE LAMPS LT BLU WIRE LT GRN WIRE MAXI FUSE 2 NCA WIRE OFF ORG/ WIRE PARK PARK LPS FUSE 9 PICKUP PLATFORM HITCH GROUND PNK WIRE PPL REAR CLEARANCE LAMPS CIRCUIT RED WIRE RHEO- REAR CLEARANCE LAMPS CIRCUIT STAT RIGHT RIGHT FRONT MARKER LAMP RIGHT FRONT PARK/ TURN LAMPS RIGHT HEADLAMP BREAKOUT) RIGHT TAIL/ STOP/ TURN LAMP STOP- LAMP RELAY (EXCEPT SUBUR- BAN/ UTILITY) STOP/ HAZ FUSE 1 SUBURBAN/ UTILITY TCC/ STOP LAMP SWITCH (TOP OF BRAKE PEDAL) TRAILER HARNESS BREAKOUT) TRAILER TOWING ADAPTER (WIRES ARE CUT AND TAPED TO HARNESS) TURN B/U FUSE 16 TURN PWR HAZ PWR FLSHR OUT GND TURN/ HAZARD SWITCH TURN/HAZARD FLASHER (CONVENIENCE CENTER: UNDER LEFT SIDE OF DASH) UNDER- HOOD FUSE RELAY CENTER (LEFT REAR OF ENGINE COMPT.) W/ DUAL REAR WHEELS W/ STEP BUMPER W/O STEP BUMPER WHT WIRE YEL WIRE

1134 1134 39 10 10 PARK BRAKE SIG IND BULB CHK IGNITION LAMP FEED PNK WIRE 33 33 BRAKE IND CTRL BRAKE WARN IN 592 592 150 DRL RELAY CTRL BLK WIRE BLK/WHT WIRE BRN WIRE BULB TEST CLUSTER BREAKOUT; 1998 DIESEL) CONVENIENCE CENTER (UNDER LEFT SIDE OF DASH) DAYTIME RUNNING LAMPS MODULE (BEHIND LEFT SIDE OF DASH) DAYTIME RUNNING LAMPS RELAY DIODE 203 (I/P HARNESS, RIGHT SIDE OF STEERING COLUMN) DRL INDICATOR DRL-FOG FUSE 15 FOG LAMP RELAY FOG LAMP SWITCH GAGES FUSE 4 GRN WIRE GROUND GRY WIRE HEAD OFF PARK HEAD- LAMP DIMMER SWITCH HEADLAMP AND PANEL DIMMER SWITCH HEADLAMP BREAKOUT) PPL HIGH BEAM INDICATOR HOT AT ALL TIMES HOT IN RUN, BULB TEST OR START I/P FUSE BLOCK (LEFT SIDE OF DASH, IGNITION SWITCH ILLUM LAMP INSTRUMENT CLUSTER INSTRUMENT CLUSTER SYSTEM (BRAKE WARNING INDICATOR) LEFT FOG LAMP LEFT LOW BEAM HEAD- LAMP LEFT HIGH BEAM HEAD- LAMP RIGHT HIGH BEAM HEAD- LAMP LIGHTING FUSE 8 LOCK OFF LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE NCA WIRE OFF ON INDICATOR ORG/ WIRE PARK BRAKE WARNING SWITCH PK LPS FUSE 9 PNK WIRE PPL RED WIRE RIGHT FOG LAMP RIGHT LOW BEAM HEAD- LAMP RUN WIRE TAN WIRE TAN/WHT WIRE UNDERHOOD FUSE/RELAY CENTER (LEFT REAR OF ENGINE COMPT) W/ FOG LAMPS YEL WIRE

1134 1134 39 10 10 PARK BRAKE SIG IND BULB CHK IGNITION LAMP FEED PNK WIRE 33 33 BRAKE IND CTRL BRAKE WARN IN 592 592 150 DRL RELAY CTRL BLK WIRE BLK/WHT WIRE BRN WIRE BULB TEST CLUSTER BREAKOUT; 1998 DIESEL) CONVENIENCE CENTER (UNDER LEFT SIDE OF DASH) DAYTIME RUNNING LAMPS MODULE (BEHIND LEFT SIDE OF DASH) DAYTIME RUNNING LAMPS RELAY DIODE 203 (I/P HARNESS, RIGHT SIDE OF STEERING COLUMN) DRL INDICATOR DRL-FOG FUSE 15 FOG LAMP RELAY FOG LAMP SWITCH GAGES FUSE 4 GRN WIRE GROUND GRY WIRE HEAD OFF PARK HEAD- LAMP DIMMER SWITCH HEADLAMP AND PANEL DIMMER SWITCH HEADLAMP BREAKOUT) PPL HIGH BEAM INDICATOR HOT AT ALL TIMES HOT IN RUN, BULB TEST OR START I/P FUSE BLOCK (LEFT SIDE OF DASH, IGNITION SWITCH ILLUM LAMP INSTRUMENT CLUSTER INSTRUMENT CLUSTER SYSTEM (BRAKE WARNING INDICATOR) LEFT FOG LAMP LEFT HEAD- LAMP RIGHT HEAD- LAMP LIGHTING FUSE 8 LOCK OFF LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE NCA WIRE OFF ON INDICATOR ORG/ WIRE PARK BRAKE WARNING SWITCH PK LPS FUSE 9 PNK WIRE PPL RED WIRE RIGHT FOG LAMP RUN WIRE TAN WIRE TAN/WHT WIRE UNDERHOOD FUSE/RELAY CENTER (LEFT REAR OF ENGINE COMPT) W/ FOG LAMPS YEL WIRE

260 (CROSS BODY HARNESS, BELT SWITCH BREAKOUT) BLK (OR BLK/WHT) WIRE BLK WIRE BLK/WHT WIRE CIG LTR FUSE 13 CONVENIENCE CENTER (LEFT SIDE OF DASH) DATA LINK INTERIOR CONNECTOR LAMPS (UNDER LEFT SYSTEM SIDE OF DASH) DOOR LOCK RELAY (UNDER CENTER OF DASH, NEAR REMOTE CONTROL DOOR LOCK RECEIVER) GAUGES FUSE 4 GROUND DOOR JAMB SW LOCK SIG UNLOCK SIG PPL GRY WIRE HOT AT ALL TIMES HOT IN RUN, BULB TEST OR START I/P FUSE BLOCK (LEFT SIDE OF DASH, LEFT DOOR LOCK SWITCH LEFT FRONT DOOR LOCK ACTUATOR LEFT REAR DOOR LOCK ACTUATOR LOCK LT BLU WIRE NCA WIRE ORG/ WIRE PNK WIRE PPL PWR ACCY C.B. REAR CARGO DOOR LOCK ACTUATOR (CARGO DOORS) REAR DOOR JAMB SWITCH REAR DOOR LOCK SWITCH (CARGO DOORS) REMOTE CONTROL DOOR LOCK RECEIVER (UNDER CENTER OF DASH PANEL) RIGHT DOOR LOCK SWITCH RIGHT FRONT DOOR LOCK ACTUATOR RIGHT REAR CARGO DOOR CONTACTOR (RIGHT REAR DOOR JAMB) RIGHT REAR DOOR LOCK ACTUATOR RR DOOR SW BATT (B+) SEAT BELT SWITCH BREAKOUT) TAN WIRE TRUNK, TAIL- GATE, FUEL DOORS SYSTEM UNLOCK UTILITY W/ REAR CARGO DOORS UTILITY W/ REAR LIFT GATE/WINDOW W/O POWER WINDOWS W/ POWER WINDOWS WHT WIRE

AIR BAG FUSE 10 AIR BAG WARNING INDICATOR BLK WIRE BLK/WHT WIRE BRN WIRE DATA LINK CONNECTOR (UNDER LEFT SIDE OF I/P) DK GRN WIRE DK GRN/WHT WIRE FRONT END DISCRIMINATING SENSOR (FRONT CENTER OF ENGINE COMPT) GAUGES FUSE GRY WIRE HOT IN PARK OR HEADLAMP HOT IN RUN, BULB TEST OR START I/P FUSE BLOCK ILLUM FUSE 14 INFLATABLE RESTRAINT I/P MODULE ENABLE SWITCH (CENTER OF I/P) INFLATABLE RESTRAINT SENSING AND DIAGNOSTIC MODULE (BELOW RIGHT SEAT) INFLATABLE RESTRAINT STEERING WHEEL MODULE INSTRUMENT CLUSTER INTERIOR LIGHTS (DIMMER SWTCH) LT BLU WIRE NCA WIRE PASSENGER INFLATOR MODULE (RIGHT I/P) PNK WIRE PPL/WHT WIRE SHORTING BAR SIR COIL ASSEMBLY SHORTING BAR SOLID STATE TAN WIRE WARNING SYSTEMS (SEAT BELT SWITCH) WHT WIRE WHT/BLK WIRE YEL WIRE