Chevrolet Blazer S15 facelift (1998-2005) run Wiring diagrams

1 2 6 8 16 19 20 21 24 40 42 46 47 48 51 62 63 GND TCC PWM PC SOL HI PC SOL LO 1 8 17 18 19 20 32 33 34 40 53 57 58 59 63 72 74 75 79 80 GND 1-2 SHIFT SOLENOID 2-3 SHIFT SOLENOID 3-2 SHIFT SOLENOID A/T FLUID PRESSURE MANUAL VALVE POSITION SWITCH ABS FUSE 22 AUTOMATIC TRANSMISSION BARE BLK WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE CLSTR FUSE 11 CRUISE CONTROL, ANTI-LOCK BRAKES SYSTEMS DK BLU WIRE DK GRN WIRE ECM-B FUSE ELECTRONIC BRAKE CONTROL MODULE ENGINE COOLANT TEMPERATURE SENSOR (ON LEFT CYLINDER HEAD, BETWEEN REAR PLUGS) FLUID TEMP SENSOR GAUGES FUSE 4 GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT IN HOT IN OFF, RUN OR START HOT IN RUN OR START I/P FUSE BLOCK (ON LEFT END OF DASH) INSTRUMENT CLUSTER A/T SHIFT LOCK SOLENOID INSTRUMENT PANEL CLUSTER (IPC) LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE MIL (SERVICE ENGINE SOON IND) ORG/ WIRE PARK/NEUTRAL POSITION SWITCH (LEFT SIDE OF TRANSMISSION) PNK PNK PNK WIRE PNK PNK UTILITY W/ FLOOR SHIFT WIRE PNK PNK WIRE PNK WIRE POWERTRAIN CONTROL MODULE (RIGHT FRONT OF ENGINE COMPT) PPL PPL DATA LINK CONNECTOR (UNDER LEFT SIDE OF DASH) PPL/WHT WIRE PRESS CTRL SOLENOID RED WIRE RED/BLK WIRE REV, LO RUN WIRE SOLID STATE SPLICE PACK STOPLAMP SWITCH (ON BRAKE PEDAL SUPPORT BRACKET) TAN WIRE TAN/BLK WIRE TCC PWM SOLENOID TCC SOLENOID THROTTLE POSITION SENSOR (ON THROTTLE BODY ASSEMBLY) UNDERHOOD FUSE BLOCK (ON TOP OF LEFT FRONT FENDER) ECM I FUSE VEHICLE SPEED SENSOR (RIGHT REAR OF TRANS) VSS ADAPTER WHT WIRE YEL WIRE YEL/BLK WIRE

2-HI IND 4-HI IND 4-LO IND ATC FUSE B+ GROUND MOTOR FEED B MOTOR FEED A BARE BARE BLK WIRE BLK/WHT WIRE BODY RELAY BLOCK (BEHIND LEFT SIDE OF DASH) BRN WIRE BRN/WHT WIRE CLASS II DATA CRANK FUSE DECODER LOGIC DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE ENCODER SIG RTN FRONT AXLE INDICATOR SWITCH (ON FRONT AXLE, RIGHT OF DIFF) FRONT AXLE VACUUM SOLENOID (ON FIREWALL, NEAR WINDSHIELD WIPER MOTOR) FRONT PROPSHAFT SPEED SENSOR FUSE 15 GAUGES FUSE 4 GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT IN HOT IN RUN OR START I/P FUSE BLOCK (ON LEFT END OF DASH) INSTRUMENT PANEL CLUSTER INTERIOR LIGHTS SYSTEM ILLUM LAMPS LOCK SOL OUT LT BLU WIRE LT GRN/BLK WIRE MOTOR LOCK ENCODER MOTOR NCA WIRE NEUTRAL IND ORG/ WIRE PNK BODY CONTROL MODULE WIRE PNK WIRE POWERTRAIN CONTROL MODULE (RIGHT FRONT OF ENGINE COMPT) PPL PPL DATA LINK CONNECTOR (DLC) (PARTIAL) (UNDER LEFT SIDE OF DASH) PPL/WHT WIRE PWR REAR PROPSHAFT SPEED SENSOR RED WIRE RED/WHT WIRE REF RUN WIRE SERVICE SOLID STATE SPLICE PACK SPLICE PACK PPL STARTING/ CHARGING SYSTEM TAN WIRE TAN/BLK WIRE TRANSFER CASE ENCODER MOTOR TRANSFER CASE SHIFT CONTROL MODULE (BEHIND RIGHT FRONT KICK PANEL) TRANSFER CASE SHIFT CONTROL SWITCH UNDERHOOD FUSE BLOCK UNDERHOOD FUSE BLOCK (ON TOP OF LEFT FRONT FENDER) YEL WIRE YEL/BLK WIRE

4 DOOR 4 LO REQUEST 2 HI REQUEST 4 HI REQUEST 4 LO STATUS LAMP ANTI-LOCK BRAKES SYSTEM ATC FUSE AXLE SW BLK LT GRN/ WIRE BLK WIRE BLK/WHT WIRE BODY RELAY BLOCK (BEHIND LEFT SIDE OF DASH) BRN WIRE BRN/WHT WIRE BTSI FUSE CRANK FUSE CRUISE CONTROL SYSTEM CTSY LP FUSE 8 DATA LINK CONNECTOR (DLC) (PARTIAL) (UNDER LEFT SIDE OF DASH) DK BLU/WHT WIRE DK GRN/WHT WIRE ENCODER CHANNEL A ENCODER CHANNEL B ENCODER CHANNEL C ENCODER CHANNEL P ENCODER GROUND ENCODER SIG GROUND GROUND 2 HI STATUS LAMP 4 HI STATUS LAMP FRONT AXLE INDICATOR FUSE 15 GROUND GROUND BATTERY BATTERY GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT IN HOT IN PARK OR NEUTRAL I/P FUSE BLOCK (ON LEFT END OF DASH) IGNITION ILLUMINATION LAMP INDICATOR INSTRUMENT CLUSTER, SOUND SYSTEMS LT GRN WIRE LT GRN/ BLK WIRE LT GRN/BLK WIRE MOTOR CONTROL A ORG/ WIRE PPL PPL/WHT WIRE RED WIRE RED/WHT WIRE RUN WIRE SHIFT MOTOR SOLID STATE SPLICE PACK STARTING/ CHARGING SYSTEM STOPLIGHT SWITCH SWITCH SWITCH (ON FRONT AXLE, RIGHT OF DIFF) TAN/BLK WIRE TRANSFER CASE ENCODER MOTOR TRANSFER CASE SHIFT CONTROL MODULE (BEHIND RIGHT FRONT KICK PANEL) TRANSFER CASE SHIFT CONTROL SWITCH UNDERHOOD FUSE BLOCK (ON TOP OF LEFT FRONT FENDER) VS SIGNAL WHT WIRE YEL/BLK WIRE

1 2 6 8 16 19 20 21 24 40 42 46 47 48 51 62 63 GND TCC PWM PC SOL HI PC SOL LO 1 8 17 18 19 20 32 33 34 40 53 57 58 59 63 72 74 75 79 80 GND 1-2 SHIFT SOLENOID 2-3 SHIFT SOLENOID 3-2 SHIFT SOLENOID A/T FLUID PRESSURE MANUAL VALVE POSITION SWITCH ABS FUSE 22 AUTOMATIC TRANSMISSION BARE BLK WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE CLSTR FUSE 11 CRUISE CONTROL, ANTI-LOCK BRAKES SYSTEMS DK BLU WIRE DK GRN WIRE ECM-B FUSE ELECTRONIC BRAKE CONTROL MODULE ENGINE COOLANT TEMPERATURE SENSOR (ON LEFT CYLINDER HEAD, BETWEEN REAR PLUGS) FLUID TEMP SENSOR GAUGES FUSE 4 GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT IN HOT IN OFF, RUN OR START HOT IN RUN OR START I/P FUSE BLOCK (ON LEFT END OF DASH) INSTRUMENT CLUSTER A/T SHIFT LOCK SOLENOID INSTRUMENT PANEL CLUSTER (IPC) LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE MIL (SERVICE ENGINE SOON IND) ORG/ WIRE PARK/NEUTRAL POSITION SWITCH (LEFT SIDE OF TRANSMISSION) PNK PNK PNK WIRE PNK PNK UTILITY W/ FLOOR SHIFT WIRE PNK PNK WIRE PNK WIRE POWERTRAIN CONTROL MODULE (RIGHT FRONT OF ENGINE COMPT) PPL PPL DATA LINK CONNECTOR (UNDER LEFT SIDE OF DASH) PPL/WHT WIRE PRESS CTRL SOLENOID RED WIRE RED/BLK WIRE REV, LO RUN WIRE SOLID STATE SPLICE PACK STOPLAMP SWITCH (ON BRAKE PEDAL SUPPORT BRACKET) TAN WIRE TAN/BLK WIRE TCC PWM SOLENOID TCC SOLENOID THROTTLE POSITION SENSOR (ON THROTTLE BODY ASSEMBLY) UNDERHOOD FUSE BLOCK (ON TOP OF LEFT FRONT FENDER) ECM I FUSE VEHICLE SPEED SENSOR (RIGHT REAR OF TRANS) VSS ADAPTER WHT WIRE YEL WIRE YEL/BLK WIRE

2-HI IND 4-HI IND 4-LO IND ATC FUSE B+ GROUND MOTOR FEED B MOTOR FEED A BARE BARE BLK WIRE BLK/WHT WIRE BODY RELAY BLOCK (BEHIND LEFT SIDE OF DASH) BRN WIRE BRN/WHT WIRE CLASS II DATA CRANK FUSE DECODER LOGIC DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE ENCODER SIG RTN FRONT AXLE INDICATOR SWITCH (ON FRONT AXLE, RIGHT OF DIFF) FRONT AXLE VACUUM SOLENOID (ON FIREWALL, NEAR WINDSHIELD WIPER MOTOR) FRONT PROPSHAFT SPEED SENSOR FUSE 15 GAUGES FUSE 4 GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT IN HOT IN RUN OR START I/P FUSE BLOCK (ON LEFT END OF DASH) INSTRUMENT PANEL CLUSTER INTERIOR LIGHTS SYSTEM ILLUM LAMPS LOCK SOL OUT LT BLU WIRE LT GRN/BLK WIRE MOTOR LOCK ENCODER MOTOR NCA WIRE NEUTRAL IND ORG/ WIRE PNK BODY CONTROL MODULE WIRE PNK WIRE POWERTRAIN CONTROL MODULE (RIGHT FRONT OF ENGINE COMPT) PPL PPL DATA LINK CONNECTOR (DLC) (PARTIAL) (UNDER LEFT SIDE OF DASH) PPL/WHT WIRE PWR REAR PROPSHAFT SPEED SENSOR RED WIRE RED/WHT WIRE REF RUN WIRE SERVICE SOLID STATE SPLICE PACK SPLICE PACK PPL STARTING/ CHARGING SYSTEM TAN WIRE TAN/BLK WIRE TRANSFER CASE ENCODER MOTOR TRANSFER CASE SHIFT CONTROL MODULE (BEHIND RIGHT FRONT KICK PANEL) TRANSFER CASE SHIFT CONTROL SWITCH UNDERHOOD FUSE BLOCK UNDERHOOD FUSE BLOCK (ON TOP OF LEFT FRONT FENDER) YEL WIRE YEL/BLK WIRE

4 DOOR 4 LO REQUEST 2 HI REQUEST 4 HI REQUEST 4 LO STATUS LAMP ANTI-LOCK BRAKES SYSTEM ATC FUSE AXLE SW BLK LT GRN/ WIRE BLK WIRE BLK/WHT WIRE BODY RELAY BLOCK (BEHIND LEFT SIDE OF DASH) BRN WIRE BRN/WHT WIRE BTSI FUSE CRANK FUSE CRUISE CONTROL SYSTEM CTSY LP FUSE 8 DATA LINK CONNECTOR (DLC) (PARTIAL) (UNDER LEFT SIDE OF DASH) DK BLU/WHT WIRE DK GRN/WHT WIRE ENCODER CHANNEL A ENCODER CHANNEL B ENCODER CHANNEL C ENCODER CHANNEL P ENCODER GROUND ENCODER SIG GROUND GROUND 2 HI STATUS LAMP 4 HI STATUS LAMP FRONT AXLE INDICATOR FUSE 15 GROUND GROUND BATTERY BATTERY GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT IN HOT IN PARK OR NEUTRAL I/P FUSE BLOCK (ON LEFT END OF DASH) IGNITION ILLUMINATION LAMP INDICATOR INSTRUMENT CLUSTER, SOUND SYSTEMS LT GRN WIRE LT GRN/ BLK WIRE LT GRN/BLK WIRE MOTOR CONTROL A ORG/ WIRE PPL PPL/WHT WIRE RED WIRE RED/WHT WIRE RUN WIRE SHIFT MOTOR SOLID STATE SPLICE PACK STARTING/ CHARGING SYSTEM STOPLIGHT SWITCH SWITCH SWITCH (ON FRONT AXLE, RIGHT OF DIFF) TAN/BLK WIRE TRANSFER CASE ENCODER MOTOR TRANSFER CASE SHIFT CONTROL MODULE (BEHIND RIGHT FRONT KICK PANEL) TRANSFER CASE SHIFT CONTROL SWITCH UNDERHOOD FUSE BLOCK (ON TOP OF LEFT FRONT FENDER) VS SIGNAL WHT WIRE YEL/BLK 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

4 DOOR A/C COMPRESSOR CLUTCH RELAY A/T ABS FUSE AIR RELAY AUTOMATIC TRANSMISSION SHIFT LOCK (BTSI) SOLENOID (W/ FLOOR SHIFT A/T) B/U LP FUSE BACK-UP LAMP SWITCH BLK WIRE BLOWER MOTOR RELAY BODY RELAY BLOCK BRN WIRE BTSI FUSE DAYTIME RUNNING LAMP (DRL) RELAY ELECTRONIC BRAKE CONTROL MODULE (EBCM) FROM B/U LP FUSE DIAGRAM 2 OF 5) FROM IGN A FUSE DIAGRAM 1 OF 5) FROM OXYGEN FUSE DIAGRAM 1 OF 5) GRN WIRE GRY WIRE HEADLAMP GROUNDING RELAY HVAC FUSE IGN B FUSE IGN C FUSE IGN E FUSE IGNITION SWITCH INSIDE REAR VIEW MIRROR (UTILITY) (PICKUP) LEFT BACK-UP LAMP (PICKUP) LEFT BACK-UP LAMP (UTILITY) LOCK LOCK OFF OFF LOCK OFF LT GRN WIRE LT LT M/T MULTI- FUNCTION SWITCH ORG/ WIRE PARK LAMP RELAY HEADLAMP SWITCH PARK/ NEUTRAL POSITION (PNP) SWITCH PNK WIRE REAR DEFOGGER RELAY (EXCEPT BASE PICKUP) RED WIRE RED/WHT WIRE RIGHT BACK-UP LAMP RIGHT BACK-UP LAMP (UTILITY) RUN WIRE SECONDARY AIR INJECTION REACTOR FUSE BLOCK (CALIF) STOP LAMP SWITCH STUD 2 FUSE HAZ LP FUSE PARK LP FUSE TO CRANK FUSE (DIAGRAM 4 OF 5) TO CLSTR FUSE (DIAGRAM 4 OF 5) TO IGN E FUSE (DIAGRAM 2 OF 5) TO RAP MAXI FUSE (DIAGRAM 3 OF 5) TO RAP RELAY (DIAGRAM 5 OF 5) TO TRAILER WIRING PROVISIONS TRAILER WIRING PROVISIONS (UTILITY W/ M/T) TRANSFER CASE SHIFT CONTROL MODULE TRL B/U FUSE UNDERHOOD FUSE BLOCK VEH B/U FUSE WHT WIRE YEL WIRE

B STUD BATTERY BATTERY FUSE BLK WIRE FUSE HOLDER (ON LOWER RIGHT SIDE OF RADIATOR SUPPORT, BELOW BATTERY) FUSIBLE LINK (10 GA-RUST) GENERATOR BATT HOLD- IN COIL PULL- IN COIL HOT AT ALL TIMES IGN A FUSE IGNITION SWITCH LOCK M/T A/T OFF ORG/ WIRE P/N SWITCH (ON CLUTCH PEDAL SUPPORT BRACKET) PARK/NEUTRAL POSITION (PNP) SWITCH (ON LEFT SIDE OF TRANSMISSION) CLUTCH POWER DISTRIBUTION SYSTEM PPL PPL A/T M/T PPL PPL PPL/WHT WIRE RED WIRE RUN WIRE STARTER MOTOR STARTER RELAY STARTER SOLENOID UNDERHOOD FUSE BLOCK (ON TOP OF LEFT FRONT INNER WHEELWELL) CRANK FUSE UNDERHOOD FUSE BLOCK (ON TOP OF LEFT FRONT INNER WHEELWELL) IGN C FUSE W/4.3L ENGINE WHT WIRE YEL WIRE