Chevrolet Blazer S15 facelift (1998-2005) 4.3l Wiring diagrams

2.2L 4.3L ABS FUSE ANTI-LOCK INDICATOR AXLE SWITCH SIG VSS LF WHL SPD SENS SIG RF WHL SPD SENS REF AXLE SWITCH SIGNAL BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (UNDER DASH, ON HEATER CASE) BRAKE FLUID LEVEL SWITCH (ON MASTER CYLINDER) BRAKE FLUID LVL SIG BRAKE WARNING INDICATOR BRN WIRE CLASS 2 COMPUTER DATA LINES SYSTEM CRUISE CONTROL SYSTEM DK GRN WIRE FRONT AXLE INDICATOR SWITCH (AT FRONT AXLE, TO RIGHT OF DIFFERENTIAL) GROUND BATTERY GRY WIRE HOT AT ALL TIMES HOT IN RUN ABS FUSE 22 I/P FUSE BLOCK (ON LEFT END OF DASH) IGNITION 3 LF WHL SPD SENS REF RF WHL SPD SENS SIG INSTRUMENT CLUSTER LEFT FRONT WHEEL SPEED SENSOR LT BLU WIRE LT GRN WIRE NCA WIRE ORG/ WIRE POWERTRAIN CONTROL MODULE (PCM) (ON RIGHT FRONT OF ENGINE COMPT) PPL PUMP MOTOR RDO BATT FUSE 19 RED WIRE RIGHT FRONT WHEEL SPEED SENSOR SPLICE PACK STOPLIGHT SWITCH (ON BRAKE PEDAL SUPPORT BRACKET) TAN WIRE TCC BRAKE SWITCH SIG SERIAL DATA UNDERHOOD FUSE BLOCK UNDERHOOD FUSE BLOCK (ON TOP OF LEFT FRONT INNER WHEELWELL) VEHICLE SPEED SIGNAL W/ ELECTRIC SHIFT CONTROL (2 SPEED) WIPER/ WASHER SYSTEM YEL WIRE YEL/BLK WIRE

4.3L 4.3L ONLY BATTERY BLK WIRE CHARGE INDICATOR CLASS 2 CLASS II DATA DK GRN WIRE FUSE HOLDER (ON LOWER RIGHT SIDE OF RADIATOR SUPPORT, BELOW BATTERY) FUSIBLE LINK (10 GA-RUST) GENERATOR GENERATOR CONTROL/ MONITORING GRY WIRE HOT AT ALL TIMES I/P FUSE BLOCK (ON LEFT END OF DASH) INSTRUMENT PANEL CLUSTER NOT USED ORG/ WIRE RDO BATT FUSE 19 RED WIRE SOUND SYSTEMS SPLICE PACK STARTER SOLENOID VOLTAGE REGULATOR SOLID STATE

2.2L 4.3L 59 58 58 59 CLASS 2 SERIAL DATA CLASS 2 SERIAL DATA BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (UNDER DASH, ON HEATER CASE) BODY RELAY BLOCK (BEHIND LEFT SIDE OF DASH, NEAR DASH FUSE BLOCK) BRN/WHT WIRE CIGAR LTR FUSE CLASS 2 SERIAL DATA DATA LINK CONNECTOR (DLC) (UNDER LEFT SIDE OF DASH) DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE DRIVER INFORMATION CENTER GROUND DISTRIBUTION SYSTEM GRY WIRE HOT AT ALL TIMES I/P FUSE BLOCK (ON LEFT END OF DASH) INSTRUMENT PANEL CLUSTER LT BLU WIRE LT GRN WIRE MEMORY SEAT MODULE (UNDER LEFT FRONT SEAT) (IF EQUIPPED) ORG/ WIRE POWERTRAIN CONTROL MODULE (PCM) (ON RIGHT SIDE OF ENGINE COMPARTMENT) PPL PPL 2 1 RADIO TRANSFER CASE SHIFT CONTROL MODULE UNDERHOOD FUSE BLOCK (ON TOP OF LEFT FRONT INNER WHEELWELL) W/ TRIP COMPUTER W/ TWO SPEED ELECTRONIC CONTROL YEL WIRE

2-SPEED PUSH BUTTON CONTROL 2.2L 4.3L ABS FUSE 22 ANTILOCK BRAKE SYSTEM BARE BARE (NEAR TOP RIGHT REAR OF TRANSMISSION) BLK WIRE BLK/WHT WIRE BODY COMPUTER SYSTEM BODY RELAY BLOCK (BEHIND LEFT SIDE OF DASH) BRN WIRE BRN/WHT WIRE CRUISE CONTROL MODULE (ON LEFT SIDE OF FIREWALL) CRUISE FUSE 3 CRUISE STATUS CRUISE STATUS VEHICLE SPEED INPUT DK BLU WIRE DK GRN/WHT WIRE GRY WIRE GRY/BLK WIRE HOT IN RUN I/P FUSE BLOCK (LEFT END OF DASH) INSTRUMENT CLUSTER SYSTEM LT BLU WIRE LT BLU/BLK WIRE LT GRN/BLK WIRE M/T A/T MULTIFUNCTION SWITCH OFF OFF ON POWERTRAIN CONTROL MODULE (RIGHT FRONT OF ENGINE COMPT) PPL PPL PPL PPL/WHT WIRE R/A SET SW STOPLAMP SWITCH (BRAKE PEDAL SUPPORT BRACKET) UNDERHOOD FUSE BLOCK (ON TOP OF LEFT FRONT INNER WHEELWELL) VEHICLE SPEED SENSOR (VSS) (ON REAR OF TRANSMISSION) VSS VSS HIGH VSS LOW WHT WIRE

2.2L: ENG HARN, 25 CM FROM BREAKOUT TO PCM) 20 CM FROM AIR PUMP CONNECTOR) 4.3L 4.3L 4.3L 4.3L A/C COMPRESSOR CLUTCH A/C COMPRESSOR CLUTCH DIODE A/T AMBIENT TEMPERATURE SENSOR (W/ OVERHEAD CONSOLE) BANK 1 SENSOR 2 BARE BARE 2.2L 4.3L BARE BARE BATTERY BLK WIRE BLK/WHT WIRE BODY RELAY BLOCK BRN WIRE CRUISE CONTROL MODULE DATA LINK CONNECTOR (DLC) DAYTIME RUNNING LAMPS (DRL) RELAY DIAGNOSTIC MODULE DRIVER INFORMATION CENTER (DIC) (UTILITY) ELECTRONIC BRAKE CONTROL MODULE FUEL PUMP RELAY HEADLAMP POWER RELAY HEATED OXYGEN SENSOR IGNITION CONTROL MODULE POWERTRAIN CONTROL MODULE (PCM) INFLATABLE RESTRAINT SENSING INSTRUMENT PANEL CLUSTER IPC LEFT FRONT FOG LAMP SIGNAL LAMP LEFT FRONT PARK/ TURN LEFT HORN M/T NCA WIRE POWERTRAIN CONTROL MODULE (PCM) REAR WINDOW WASHER PUMP MOTOR BRAKE FLUID LEVEL SWITCH REMOTE CONTROL DOOR LOCK RECEIVER RIGHT FRONT FOG LAMP RIGHT FRONT PARK/ TURN RIGHT HORN SECONDARY AIR INJECTION REACTOR (AIR) PUMP SIGNAL LAMP STARTER RELAY UNDERHOOD FUSE BLOCK UTILITY 4.3L VEHICLE SPEED SENSOR (VSS) SHIELD VEHICLE SPEED SENSOR SHIELD 4.3L A/T W/ A/C W/ A/C 4.3L W/ RKE WHT WIRE WINDSHIELD WASHER FLUID PUMP

* - INFORMATION NOT AVAILABLE 1356 705 278 192 FTP IN 4.3L AMBIENT LIGHT SENSOR (TOP LEFT SIDE OF DASH) AUTO PARK HEAD BATTERY FUSE BLK WIRE BODY CONTROL MODULE (UNDER DASH, ON HEATER CASE) BODY RELAY BLOCK (LEFT SIDE OF DASH) BRN WIRE DK BLU WIRE DK GRN/WHT WIRE FOG LAMP RELAY FOG LAMP SWITCH FOG LP FUSE FOG LP IND FTP GRY WIRE HEADLAMP POWER RELAY HEADLAMP SWITCH HIGH BEAM/ FLASH-TO- PASS SWITCH HOT AT ALL TIMES HOT IN RUN I/P FUSE BLOCK HDLP SW FUSE 7 IGN E FUSE ILLUM LEFT FOG LAMP LEFT HIGH BEAM HEADLAMP LEFT LOW BEAM HEADLAMP LIGHT SENSOR FOG SW IN HEADLAMP CTRL LT BLU WIRE LT GRN/BLK WIRE LT HDLP FUSE MULTIFUNCTION SWITCH NCA WIRE ORG/ WIRE PARK BRAKE SW DRL RELAY CTRL PARK BRAKE SWITCH (BASE OF PARK BRAKE ASSEMBLY) PARK LAMP RELAY PARK LP FUSE PARK RLY CTRL FOG RLY CTRL HEADLAMP CTRL HIGH BEAM IN PNK WIRE PPL PPL HIGH PPL PPL PPL/WHT WIRE RED WIRE RIGHT FOG LAMP RIGHT HIGH BEAM HEADLAMP RIGHT LOW BEAM HEADLAMP RT HDLP FUSE SPLICE PACK TBC FUSE UNDERHOOD FUSE BLOCK UNDERHOOD FUSE BLOCK (TOP OF LEFT FRONT FENDER) WHT WIRE YEL WIRE YEL/BLK WIRE

2.2L 20 21 VSS LOW VSS HIGH 4.3L 46 10 17 MIL IND TACH OUT VSS OUT 54 29 69 72 73 63 ECT SENSOR IN PRNDL A PRNDL B PRNDL C PRNDL P VSS HIGH BARE BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE BRN WIRE BRN/WHT WIRE CRUISE CONTROL SYSTEM DK GRN WIRE DK GRN/ WHT WIRE DK GRN/WHT WIRE ECT SENSR GRD ENGINE CONTROLS SYSTEM ENGINE COOLANT TEMPERATURE SENSOR (IN COOLANT PIPING, FRONT OF ENGINE, ENGINE COOLANT TEMPERATURE SENSOR (IN COOLANT PIPING, ON FRONT OF ENGINE) FUEL LEVEL SENS GRD FUEL PUMP/ SENDER (TOP OF FUEL TANK) FUEL PUMP/ SENSDER (TOP OF FUEL TANK) GRY WIRE LT GRN WIRE LT GRN/BLK WIRE MIL IND CTRL SERIAL DATA VSS SIG OUT ORG/BLK WIRE PARK/NEUTRAL POSITION, BACK-UP LAMP SWITCH (LEFT SIDE OF TRANSMISSION) POWERTRAIN CONTROL MODULE (2.2L ONLY) (RIGHT FRONT OF ENGINE COMPT) POWERTRAIN CONTROL MODULE (4.3L ONLY) (RIGHT FRONT OF ENGINE COMPT) PPL PPL (ENGINE HARN, NEAR BREAKOUT TO POWERTRAIN CONTROL MODULE) PPL FUEL LEVEL SIG IN PPL FUEL LVL IN PPL/WHT WIRE PRNDL C SIG PRNDL P SIG SERIAL DATA SPLICE SPLICE PACK TACH OUT TRANSMISSION VEHICLE SPEED SENSOR (RIGHT REAR OF VEHICLE SPEED SENSOR (RIGHT REAR OF TRANSMISSION) VSS LOW VSS SIG OUT WHT DK GRN/ WIRE WHT WIRE YEL WIRE

1850 1140 GROUND BATTERY SERIAL DATA GROUND SENSOR PWR 2.2L 4.3L 710 1057 SERIAL DATA SENSOR RET SENSOR SIG BLK WIRE BODY CONTROL MODULE (UNDER DASH, ON HEATER CASE) DATA LINK CONNECTOR (UNDER LEFT SIDE OF DASH) DK GRN/WHT WIRE ENGINE CONTROLS SYSTEM (FUEL PUMP RELAY) HOT AT ALL TIMES LT GRN WIRE ORG/ WIRE ORG/BLK WIRE PASSLOCK SENSOR (AT IGNITION SWITCH) POWERTRAIN CONTROL MODULE (ON RIGHT FRONT OF ENGINE COMPT) PPL RED WIRE RED/WHT WIRE REMOTE CONTROL DOOR LOCK RECEIVER (BEHIND LOWER LEFT SIDE OF DASH) SPLICE PACK TBC FUSE UNDERHOOD FUSE BLOCK (ON TOP OF LEFT FRONT INNER WHEELWELL) W/ REMOTE KEYLESS ENTRY WHT WIRE YEL WIRE

4.3L 4.3L ONLY AIR FUSE AIR INJECTION REACTOR FUSE BLOCK AIR RELAY AIR SOL FUSE BATTERY BATTERY FUSE BLK WIRE CALIFORNIA ONLY CENTRAL SEQUENTIAL FUEL INJECTION (4.3L) ECM 1 FUSE ENG 1 FUSE EVAPORATIVE EMISSIONS (EVAP) CANISTER PURGE SOLENOID EVAPORATIVE EMISSIONS (EVAP) CANISTER VENT SOLENOID FROM ECM 1 FUSE DIAGRAM 1 OF 5) FUEL INJECTORS FUEL INJECTR 1 FUEL INJECTR 2 FUEL INJECTR 3 FUEL INJECTR 4 FUSIBLE LINK GAUGES FUSE 4 GENERATOR GRY WIRE HEATED OXYGEN SENSOR HEATED OXYGEN SENSOR HEATED OXYGEN SENSOR I/P FUSE BLOCK IGN A FUSE TO ENG 1 FUSE (DIAGRAM 1 OF 5) IGNITION COIL POWERTRAIN CONTROL MODULE (PCM) IGNITION CONTROL MODULE (ICM) IGNITION SWITCH INSTRUMENT PANEL CLUSTER (IPC) BODY CONTROL MODULE LOCK OFF MASS AIR FLOW (MAF) SENSOR (4.3L) NCA WIRE OXYGEN FUSE PICKUP PNK 2.2L WIRE PNK PNK PNK WIRE PNK PNK WIRE PNK WIRE RED WIRE RUN WIRE SECONDARY AIR INJECTION REACTOR PUMP SIR FUSE 16 STARTER SWITCH TO B/U LP FUSE (DIAGRAM 2 OF 5) TO ENG HARN, 5 CM FROM BREAKOUT TO ENG HARN) TO IGN C FUSE (DIAGRAM 2 OF 5) TURN FUSE 10 UNDERHOOD FUSE BLOCK UNDERHOOD FUSE BLOCK STARTER RELAY YEL WIRE

2.2L 4.3L ABS FUSE AIR TEMPERATURE ACTUATOR HVAC CONTROL ASSEMBLY BLK WIRE BODY CONTROL MODULE BODY RELAY BLOCK BRN WIRE CLUTCH CRUISE CONTROL MODULE CRUISE FUSE DK BLU WIRE DK GRN WIRE DRIVER DOOR LOCK WINDOW LOCKOUT SWITCH (4 DOOR) DRIVER INFORMATION DISPLAY MODULE RADIO DRIVER SEAT LUMBAR SWITCH ELECTRONIC BRAKE CONTROL MODULE (EBCM) ELECTRONIC BRAKE CONTROL MODULE (EBCM) ENDGATE/ LIFTGATE WINDOW RELEASE SWITCH (UTILITY) EXCEPT BASE PICKUP FROM IGNITION FROM POWER SEATS CIRCUIT BREAKER (DIAGRAM 3 OF 5) FRONT AXLE INDICATOR SWITCH FRONT AXLE VACUUM SOLENOID FRONT PAS- SENGER SEAT LUMBAR SWITCH FRONT PASSENGER DOOR LOCK FRT WPR FUSE FUSE FUSE (DIAGRAM 5 OF 5) HVAC FUSE HVAC 1 FUSE HVAC CONTROL ASSEMBLY (W/O ELECTRONIC CLIMATE CONTROL) I/P FUSE BLOCK INSIDE REAR VIEW MIRROR (W/ AUTOMATIC DAY/NIGHT MIRROR) INSTRUMENT PANEL CLUSTER MULTI- FUNCTION SWITCH MULTIFUNCTION SWITCH NCA WIRE POWER WINDOW CIRCUIT BREAKER RDO IGN FUSE REAR WIPER/ WASHER SWITCH RED WIRE RETAINED ACCESSORY POWER (RAP) RELAY RR WPR FUSE STR WHL RDO IGN FUSE STEERING WHEEL CONTROLS (IF EQUIPPED) STOP LAMP SWITCH SUNROOF MODULE SUNROOF SWITCH STOP- LAMP SWITCH SWITCH TO HVAC FUSE (DIAGRAM 5 OF 5) TRANSFER CASE SELECT SWITCH TRANSFER CASE SHIFT CONTROL MODULE UTILITY W/O W/O MEMORY WINDOW SWITCH WINDOW SWITCH (2 DOOR) WINDSHIELD WIPER MOTOR YEL WIRE