Chevrolet Blazer S15 facelift (1998-2005) (behind upper left end of dash) Wiring diagrams

AMBIENT LIGHT SENSOR (ON TOP LEFT SIDE OF DASH) ANTI-THEFT SYSTEM ANTI-THEFT SYSTEM REMOTE KEYLESS ENTRY CIRCUIT BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (UNDER DASH, ON HEATER CASE) BRN WIRE COURTESY LAMP SW SIG FLASH-TO-PASS SW SIG CRUISE FUSE 3 DK BLU WIRE DK BLU/WHT WIRE DK GRN/WHT WIRE DOOR LOCKS SYSTEM DOOR LOCKS SYSTEM DRL RELAY CTRL CLASS 2 SERIAL DATA SIGNAL GROUND IGNITION 1 VOLTAGE EXTERIOR LIGHTS SYSTEM EXTERIOR LIGHTS SYSTEM EXTERIOR PARK LAMPS SUPPLY VOLTAGE GAUGES FUSE 4 GMCM SERIAL DATA GROUND BATTERY POSITIVE VOLTAGE DOOR UNLOCK CTRL DOOR LOCK CTRL GRY WIRE GRY/BLK WIRE HEADLAMP HI BEAM RELAY CTRL HLP DIMMER SW HI BEAM SIG HEADLAMP OFF SIG HEADLAMP RELAY COIL SUPPLY VOLTAGE LED DIMMING SIGNAL VEHICLE SPEED SENSOR SIG HEADLIGHTS SYSTEM HEADLIGHTS SYSTEM COMPUTER DATA LINES SYSTEM HEADLIGHTS SYSTEM INTERIOR LIGHTS SYSTEM ENGINE CONTROLS SYSTEM HOT AT ALL TIMES HOT IN RUN HOT IN RUN OR START HOT WITH HEADLAMP SWITCH IN HEAD OR PARK I/P FUSE BLOCK (LEFT END OF DASH) I/P LAMP FUSE SUPPLY VOLTAGE AMBIENT LIGHT SENSOR SIG IGNITION KEY ALARM SWITCH (PART OF IGNITION SWITCH) INSTRUMENT CLUSTER SYSTEM INTERIOR LIGHTS SYSTEM INTERIOR LIGHTS SYSTEM INTERIOR LIGHTS SYSTEM HEADLIGHTS SYSTEM LEFT FRONT TURN SW SIG RIGHT FRONT TURN SW SIG LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE ORG/ WIRE ORG/BLK WIRE PARK BRAKE SWITCH (AT BASE OF PARK BRAKE ASSEMBLY) PARK LP FUSE 5 PNK WIRE PNK/BLK WIRE POWER DISTRI- BUTION SYSTEM (W/ REMOTE KEYLESS ENTRY) POWER DISTRIBUTION SYSTEM (RAP) INTERIOR LIGHTS SYSTEM HORNS SYSTEM PPL PPL/WHT WIRE RAP RELAY COIL CTRL INTERIOR LAMP RELAY COIL CTRL HORN RELAY CTRL RED/WHT WIRE SECURITY SYSTEM SENSOR SIG SPLICE TAN WIRE TBC FUSE (ON TOP OF LEFT FRONT INNER WHEELWELL) UNDERHOOD FUSE BLOCK WARNING SYTEMS TRANSMISSION SYSTEM WHT WIRE YEL WIRE

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

AIR TEMPERATURE ACTUATOR ASHTRAY LAMP AUTOMATIC TRANSMISSION SHIFT LEVEL POSITION INDICATOR LAMP AUTOMATIC TRANSMISSION SHIFT LOCK ACTUATOR BARE BARE BARE BLK WIRE BLOWER MOTOR RELAY (MAN A/C) BLOWER MOTOR (MAN A/C) BODY CONTROL MODULE BODY RELAY BLOCK CIGAR LIGHTER COURTESY LAMP RELAY HEADLAMP GROUND RELAY CREW CAB ONLY DATA LINK CONNECTOR (DLC) DOOR LOCK RELAY DOOR UNLOCK RELAY DRIVER DOOR JAMB SWITCH DRIVER DOOR UNLOCK RELAY ENDGATE/ LIFTGATE WINDOW RELEASE SWITCH EX 4 DOOR UTILITY W/ LIFTGATE FOG LAMP SWITCH FROM FRONT PASSENGER DOOR JAMB SWITCH FUEL PUMP/ SENDER HEADLAMP SWITCH HVAC CONTROL ASSEMBLY IGNITION KEY ALARM SWITCH INFLATABLE RESTRAINT I/P MODULE DISABLE SWITCH INFLATABLE RESTRAINT STEERING WHEEL MODULE INSTRUMENT PANEL CLUSTER (IPC) LEFT LICENSE LAMP LEFT REAR MARKER LAMP LEFT REAR PARK/TURN SIGNAL LAMP (FLEETSIDE) LEFT BACK-UP LAMP LEFT STEERING WHEEL CONTROL SWITCH NCA WIRE PARK SWITCH PICKUP PICKUP, UTILITY W/O AUTO A/C RADIO REAR WIPER/ WASHER SWITCH RIGHT BACK-UP LAMP RIGHT LICENSE LAMP RIGHT REAR PARK/TURN SIGNAL LAMP (FLEETSIDE) RIGHT LICENSE LAMP RIGHT STEERING WHEEL CONTROL SWITCH DRIVER SEAT BELT SWITCH SPLICE PACK) DRIVER DOOR HANDLE SWITCH SPORTSIDE PICKUP TAN WIRE TOW/ HAUL SWITCH TRAILER WIRING PROVISION TRANSFER CASE FRONT PROPSHAFT SPEED SENSOR SHIELD TRANSFER CASE SHIFT CONTROL SWITCH UTILITY UTILITY W/ RADIO CONTROLS PICKUP UTILITY W/O RADIO CONTROLS W/ COLUMN SHIFT W/ FLOOR SHIFT W/ COLUMN SHIFT WHT WIRE WINDSHIELD WIPER MOTOR

AUXILIARY POWER OUTLET AUXILIARY POWER OUTLET AUDIO AMPLIFIER BLK WIRE CENTER HIGH MOUNT STOP LAMP CENTER HIGH MOUNT STOP LAMP DOME LAMP CENTER HIGH MOUNT STOP LAMP RESISTOR CREW CAB DOOR LOCK CYLINDER SWITCH DOOR LOCK, WINDOW SWITCH DRIVER DOOR LOCK CYLINDER SWITCH DRIVER DOOR LOCK, SIDE WINDOW SWITCH DRIVER HEATED SEAT ASSEMBLY DRIVER LUMBAR SWITCH DRIVER MEMORY SEAT MODULE DRIVER SEAT ADJUSTER SWITCH DRIVER SEAT BELT SWITCH DRIVER OUTSIDE REAR- VIEW MIRROR FRONT PASSENGER FRONT PASSENGER DOOR LOCK, SIDE WINDOW SWITCH FRONT PASSENGER FRONT PASSENGER HEATED SEAT ASSEMBLY FRONT PASSENGER OUTSIDE REAR VIEW MIRROR FRONT PASSENGER SEAT ADJUSTER SWITCH FRONT PASSENGER SEAT BELT SWITCH FRONT PASSENGER SEAT LUMBAR SWITCH HAZARD FLASHER MODULE INSIDE AIR TEMPERATURE SENSOR ASSEMBLY SUNROOF CONTROL MODULE INSIDE REAR VIEW MIRROR LEFT BACK-UP LAMP LEFT REAR DOOR JAMB SWITCH RIGHT REAR DOOR JAMB SWITCH LEFT REAR PARK/ TURN SIGNAL LAMP LEFT REAR TAIL/ STOP LAMP LEFT VANITY MIRROR LAMP LIFTGATE RELEASE ACTUATOR NCA WIRE OUTSIDE REAR VIEW FOLDING MIRROR SWITCH OUTSIDE REAR VIEW MIRROR OUTSIDE REAR VIEW MIRROR SWITCH PICKUP EXCEPT CREWCAB PICKUP W/ POWER DOOR LOCKS W/O KEYLESS ENTRY PICKUP: ON RIGHT REAR FRAME RAIL) REAR WINDOW DEFOGGER GRID REAR WINDOW WIPER CUTOUT, LIFTGLASS AJAR JAMB SWITCH REAR WINDOW WIPER MOTOR CONTROLLER RIGHT BACK-UP LAMP RIGHT REAR PARK/ TURN SIGNAL LAMP RIGHT REAR TAIL/ STOP LAMP RIGHT VANITY MIRROR LAMP SPLICE PACK STRAPPED TO BODY HARN, IN CENTER FRONT OF DASH, LEFT OF SP 200) TRANSFER CASE SHIFT CONTROL MODULE TRANSFER CASE SHIFT CONTROL MODULE TURN SIGNAL/ UTILITY UTILITY, CREW CAB UTILITY, CREW CAB, MAXI-CAB UTILITY, CREWCAB W/ ENHANCED PERFORMANCE AUDIO W/ FOLDILNG POWER MIRRORS W/ HEATED SEATS W/ MIRROR LAMPS W/O MIRROR LAMPS W/ POWER DOOR LOCKS EXCEPT PICKUP W/O KEYLESS ENTRY WINDOW LOCKOUT SWITCH

11 9 (W/ TRIP) (W/O TRIP) ASH TRAY LAMP AUTOMATIC TRANSMISSION SHIFT LEVER POSITION INDICATOR BLK WIRE BODY CONTROL MODULE (UNDER DASH, ON HEATER CASE) BODY RELAY BLOCK (BEHIND LEFT SIDE OF DASH) BODY RELAY BLOCK (LEFT SIDE OF DASH, RIGHT OF I/P FUSE BLOCK) BRN WIRE DIMMER DIMMER INPUT DIMMING CONTROL DK GRN WIRE DRIVER DOOR LOCK/ WINDOW SWITCH DRIVER INFORMATION CENTER DRIVER INFORMATION DISPLAY MODULE EXTERIOR LAMPS SYSTEM FOG LAMP SWITCH FRONT PASSENGER DOOR LOCK, WINDOW SWITCH GARAGE DOOR OPENER GRY WIRE HEADLAMP SWITCH HOT AT ALL TIMES PRK LP FUSE HVAC CONTROL ASSEMBLY I/P FUSE BLOCK (LEFT SIDE OF DASH, ILLUM FUSE 12 INFLATABLE RESTRAINT I/P MODULE DISABLE SWITCH INFLATABLE RESTRAINT STEERING WHEEL MODULE COIL INPUT INSTRUMENT CLUSTER LEFT FRONT DOOR HARN, 8 CM FROM RADIO SPEAKER BREAKOUT) LIGHT SWITCH LT BLU WIRE OFF HEAD PARK ORG/ WIRE OUTSIDE REARVIEW MIRROR SWITCH PICKUP PICKUP ONLY PICKUP UTILITY PPL PPL/WHT WIRE PRK LP FUSE 5 PRK LPS RADIO RADIO DIM REAR DEF SWITCH ILLUM SPICE PACK STEERING WHEEL CONTROLS STR WHL ILL FUSE 6 TOW/ HAUL SWITCH TRANSFER CASE SHIFT CONTROL SWITCH UNDERHOOD FUSE BLOCK (TOP OF LEFT INNER WHEELWELL) UTILITY W/ TRIP W/O TRIP WHT WIRE WINDOW LOCKOUT SWITCH (4 DOOR)

A/C A/C COMP RLY CTRL A/C COMPRESSOR CLUTCH A/C COMPRESSOR CLUTCH DIODE A/C COMPRESSOR CLUTCH RELAY A/C COMPRESSOR HIGH PRESSURE SWITCH (ON REAR OF A/C COMPRESSOR) A/C CYCLING SW SIGNAL A/C FUSE A/C LOW PRESSURE SWITCH (AT A/C ACCUMULATOR) A/C REQUEST SIGNAL AIR PUMP, 20 CM FROM AIR PUMP CONNECTOR) AIR TEMPERATURE ACTUATOR (BEHIND RIGHT SIDE OF DASH, ON HEATER CASE) BLEND BLK WIRE BLK/ WHT WIRE BLK/WHT WIRE BLOWER MOTOR (ON RIGHT REAR OF ENGINE COMPARTMENT) BLOWER MOTOR RELAY (ON CENTER REAR OF ENGINE COMPARTMENT) BLOWER MOTOR RESISTOR (ON RIGHT REAR OF ENGINE COMPARTMENT, ON BLOWER MODULE) BLOWER SWITCH BRN WIRE DEF DK BLU WIRE DK GRN WIRE DK GRN/ WHT WIRE DK GRN/WHT WIRE GRY WIRE HEAT BI-LEVEL A/C VENT HEATER, A/C CONTROLLER HOT AT ALL TIMES HOT IN PARK, HEAD HOT IN RUN HOT IN RUN, START HVAC 1 FUSE 21 HVAC FUSE HVAC FUSE 9 I/P FUSE BLOCK (ON LEFT END OF DASH) IGN E FUSE ILLUM ILLUM FUSE 12 LOW HIGH MED 1 MED 2 LT BLU WIRE MODE DOOR SWITCH NCA WIRE OFF DEF MAX A/C BLEND NORM HEAT BI-LEVEL VENT OFF MAX A/C ORG/ WIRE PICKUP UTILITY POWER MIRRORS SYSTEM (AUTOMATIC DAY/NIGHT MIRROR) POWERTRAIN CONTROL MODULE (PCM) (ON RIGHT SIDE OF ENGINE COMPARTMENT) PPL SERVO AMPLIFIER TAN WIRE TEMP CONTROL UNDERHOOD FUSE BLOCK (ON TOP OF LEFT FRONT INNER WHEELWELL)

& SPLICE PACKS) 4 DOOR BLK WIRE BRN WIRE COAXIAL CABLE ANTENNA INPUT COMPUTER DATA LINES SYSTEM DK BLU WIRE DK GRN WIRE GRY WIRE HOT AT ALL TIMES HOT IN ACC OR RUN HOT IN PARK, HEAD I/P FUSE BLOCK (AT LEFT SIDE OF DASH, NEAR DOOR JAMB SWITCH) ILLUM FUSE 12 LAMP SUP VOLT 2 GROUND LEFT FRONT DOOR SPEAKER LEFT REAR DOOR SPEAKER (4 DOOR) LEFT REAR SPEAKER (2 DOOR) LEFT STEERING WHEEL CONTROLS SWITCH LT BLU WIRE LT GRN WIRE MUTE NCA WIRE ORG/ WIRE PPL/WHT WIRE PROGRAM RADIO RADIO ANTENNA RDO BATT FUSE 19 RDO IGN FUSE 24 RIGHT FRONT DOOR SPEAKER RIGHT REAR DOOR SPEAKER (4 DOOR) RIGHT REAR SPEAKER (2 DOOR) RIGHT STEERING WHEEL CONTROLS SWITCH SEEK DOWN SEEK UP SERIAL DATA SPLICE PACK STR WHL ILLUM FUSE 6 SWITCH BACKLIGHTING TAN WIRE VOL DOWN VOL UP WHT WIRE YEL WIRE

1220 126 INST PANEL FUSE LEFT FRONT DR SW HEADLAMP OFF SIG 4.3L 2.2L 58 59 59 58 SERIAL DATA SERIAL DATA BATTERY GROUND BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (UNDER DASH, ON HEATER CASE) BRN WIRE CHIME CRUISE FUSE 3 DK BLU/WHT WIRE DK GRN WIRE DRIVER DOOR JAMB SWITCH DRIVER SEAT BELT SWITCH (OPEN WHEN BUCKLED) GAUGES FUSE 4 GROUND DISTRIBUTION SYSTEM GRY WIRE HEADLAMP SWITCH HOT AT ALL TIMES HOT IN RUN HOT IN RUN, START HOT W/HEADLAMP SWITCH IN PARK OR HEAD HOT W/HEADLAMP SWITCH IN PARK OR HEAD POSITION RHEOSTAT CONTROLLED I/P FUSE BLOCK (ON LEFT END OF DASH) IGNITION 3 VOLT SEAT BELT SWITCH IGNITION KEY ALARM SWITCH (CLOSED W/KEY IN IGNITION SWITCH) ILLUM FUSE 12 INSTRUMENT PANEL CLUSTER (IPC) LT BLU/WHT WIRE LT GRN WIRE NCA WIRE ORG/ WIRE PACKS) PARK HEAD AUTO PARK LPS FUSE 5 PARK LPS VOLT KEY IN IGN SW SERIAL DATA PICKUP EXCEPT CREW CAB PNK IGNITION 1 VOLT LEFT TURN SIG RIGHT TURN SIG WIRE PNK WIRE POWER DISTRIBUTION SYSTEM POWERTRAIN CONTROL MODULE (PCM) (ON RIGHT SIDE OF ENGINE COMPARTMENT) PPL PPL/WHT WIRE RADIO SERIAL DATA SERIAL DATA GROUND SPLICE PACK TAN WIRE TBC FUSE UNDERHOOD FUSE BLOCK (ON TOP OF LEFT FRONT INNER WHEELWELL) UTILITY WHT WIRE YEL WIRE