GMC Sonoma II (1994-2004) (left center 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 PACK TAN WIRE TBC FUSE UNDERHOOD FUSE BLOCK WARNING SYTEMS TRANSMISSION SYSTEM WHT WIRE YEL WIRE

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

2 DOOR UTILITY PICKUP W/ PWR DOOR LOCKS 4 DOOR UTILITY 80 1303 727 (UTILITY) BLK WIRE BODY CONTROL MODULE (UNDER DASH, ON HEATER CASE) DATA LINK CONNECTOR (UNDER LEFT SIDE OF DASH) PPL DK BLU WIRE DK BLU/WHT WIRE DRIVER DOOR JAMB SWITCH DRIVER DOOR LOCK CYLINDER SWITCH FR HANDLE SW KEY SW SIG DRV DR SWITCH FRONT PASSENGER DOOR JAMB SWITCH FRONT PASSENGER DOOR LOCK CYLINDER SWITCH GROUND BATTERY SERIAL DATA GROUND HORN RELAY GRY WIRE HORNS SYSTEM HOT AT ALL TIMES IGNITION KEY ALARM SWITCH INSTRUMENT PANEL CLUSTER KEY IN IGN LIFTGATE SW DOOR SW SIG LEFT DOOR HANDLE SWITCH LEFT REAR SIDE DOOR JAMB SWITCH LT GRN WIRE ORG/ WIRE PICKUP PNK WIRE PNK/BLK WIRE PPL REAR WINDOW WIPER CUTOUT, LIFTGLASS AJAR JAMB SWITCH RIGHT DOOR HANDLE SWITCH RIGHT REAR SIDE DOOR JAMB SWITCH SECURITY INDICATOR SPLICE PACK TAN WIRE TBC FUSE UNDERHOOD FUSE BLOCK W/ PWR DOOR LOCKS W/O PWR DOOR LOCKS WHT WIRE

AIR TEMPERATURE ACTUATOR ASHTRAY LAMP AUTOMATIC SHIFT LOCK TRANSMISSION CONTROL SOLENOID AUTOMATIC TRANSMISSION SHIFT LEVEL INDICATOR LAMP AUTOMATIC TRANSMISSION SHIFT LOCK SOLENOID BARE BARE BARE BLK WIRE BLOWER MOTOR CONTROL PROCESSOR (AUTO A/C) 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 HANDLE SWITCH DRIVER DOOR JAMB SWITCH DRIVER DOOR UNLOCK RELAY DRIVER SEAT BELT SWITCH ENDGATE/ LIFTGATE WINDOW RELEASE SWITCH EX 4 DOOR UTILITY W/ LIFTGATE EXTENTION HARN, 10 CM FROM VSS BREAKOUT) FOG LAMP SWITCH FROM W/ FLOOR SHIFT W/ COLUMN SHIFT (DIAGRAM 3 OF 3) FRONT PASSENGER DOOR JAMB SWITCH FUEL PUMP/ SENDER HEADLAMP SWITCH HVAC CONTROL MODULE I/P COMPARTMENT LAMP IGNITION KEY ALARM SWITCH INFLATABLE RESTRAINT I/P MODULE DISABLE SWITCH INSTRUMENT PANEL CLUSTER (IPC) LEFT LICENSE LAMP LEFT REAR MARKER LAMP LEFT REAR PARK/TURN SIGNAL LAMP (FLEETSIDE) LEFT BACK-UP LAMP NCA WIRE PARK LOCK SOLENOID PARK SWITCH PICKUP PICKUP, UTILITY W/O AUTO A/C RADIO REAR WIPER/ WASHER SWITCH RIGHT LICENSE LAMP RIGHT REAR PARK/TURN SIGNAL LAMP SPORTSIDE PICKUP STEERING WHEEL CONTROLS TAN WIRE TRAILER WIRING PROVISION TRANSFER CASE SHIFT CONTROL SWITCH UTILITY UTILITY W/ AUTO A/C UTILITY W/ RADIO CONTROLS UTILITY W/O RADIO CONTROLS W/ COLUMN SHIFT WHT WIRE WINDSHIELD WIPER MOTOR

1356 705 278 192 FTP IN AMBIENT LIGHT SENSOR (TOP LEFT SIDE OF DASH) AUTO PKLP HDLP BATTERY FUSE BLK WIRE BODY CONTROL MODULE (UNDER DASH, ON HEATER CASE) BODY RELAY BLOCK (LEFT SIDE OF DASH) BRN WIRE DAYTIME RUNNING LAMPS RELAY DK BLU WIRE DK GRN/WHT WIRE FOG LAMP RELAY FOG LAMP SWITCH FOG LP FUSE FOG LP IND ILLUM FTP GRN WIRE GRY WIRE HEADLAMP GROUNDING RELAY HEADLAMP POWER RELAY HEADLAMP SWITCH HIGH BEAM/ FLASH-TO- PASS SWITCH HOT AT ALL TIMES I/P FUSE BLOCK HDLP SW FUSE 7 LEFT FOG LAMP LEFT HIGH BEAM HEADLAMP LEFT LOW BEAM HEADLAMP LIGHT SENSOR FOG SW IN HEADLAMP CTRL LT BLU WIRE LT DK 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 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

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 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 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 WINDOW DEFOG SWITCH REAR WIPER/ WASHER, ENDGATE/ LIFTGLASS WINDOW RELEASE SWITCH REMOTE AUDIO PLAYER 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 UTILITY W/O ECC ONLY W/ TRIP W/O ELECTRONIC CLIMATE CONTROL W/ ELECTRONIC CLIMATE CONTROL W/O TRIP WHT WIRE WINDOW LOCKOUT SWITCH (4 DOOR) DRIVER DOOR LOCK, WINDOW SWITCH

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

2.2L 4.3L ABS FUSE 22 AIR HVAC TEMPERATURE CONTROL ACTUATOR MODULE AIR TEMPERATURE ACTUATOR AIR TEMPERATURE HVAC CONTROL ACTUATOR ASSEMBLY BLK WIRE BODY CONTROL MODULE BODY RELAY BLOCK BRN WIRE CRUISE CONTROL MODULE CRUISE FUSE 3 DK BLU WIRE DK GRN WIRE DRIVER SEAT LUMBAR SWITCH DRIVER WINDOW DOOR LOCKOUT LOCK SWITCH (4 DOOR) WINDOW SWITCH ELECTRONIC ELECTRONIC BRAKE BRAKE CONTROL CONTROL MODULE MODULE (EBCM) (EBCM) 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 17 FUSE (DIAGRAM 5 OF 5) HVAC FUSE 9 FUSE 15 HVAC 1 FUSE 21 HVAC CONTROL ASSEMBLY 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 PICKUP POWER WINDOW CIRCUIT BREAKER RADIO DRIVER INFORMATION DISPLAY MODULE RDO IGN FUSE 24 REAR WIPER/ WASHER SWITCH RETAINED ACCESSORY POWER (RAP) RELAY RR WPR FUSE 23 STR WHL RDO IGN FUSE 18 STOP LAMP SWITCH STOP- CLUTCH LAMP SWITCH SWITCH SUNROOF MODULE TO HVAC FUSE (DIAGRAM 5 OF 5) TRANSFER CASE SELECT SWITCH TRANSFER CASE SHIFT CONTROL MODULE UTILITY UTILITY W/ ELECTRONIC CLIMATE CONTROL UTILITY W/ MANUAL HVAC CONTROL W/O MEMORY WINDOW SWITCH (2 DOOR) WINDSHIELD WIPER MOTOR YEL WIRE

1 2 3 4 BATTERY BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (UNDER DASH, ON HEATER CASE) BODY RELAY BLOCK BODY RELAY BLOCK (BEHIND LEFT SIDE OF DASH, NEAR I/P FUSE BLOCK) DK GRN WIRE DOOR LOCK RELAY DOOR UNLOCK RELAY DR UNLK RLY DR LK RLY DRIVER DOOR LOCK ACTUATOR DRIVER DOOR LOCK AND WINDOW SWITCH DRIVER DOOR UNLOCK RELAY ENDGATE OR LIFTGATE LOCK CYLINDER SWITCH (UTILITY W/ CONTENT THEFT) FRONT PASSENGER DOOR LOCK ACTUATOR FRONT PASSENGER DOOR LOCK AND WINDOW SWITCH GROUND GRY WIRE HOT AT ALL TIMES I/P FUSE BLOCK IGNITION KEY ALARM SWITCH LEFT REAR DOOR LOCK ACTUATOR (UTILITY) LOCK LT BLU WIRE LT GRN WIRE MIR/LCK FUSE 7 MIRRORS SYSTEM ORG/ WIRE PWR LKS FUSE 14 REMOTE CONTROL DOOR LOCK RECEIVER (BEHIND LOWER LEFT SIDE OF DASH) RIGHT REAR DOOR LOCK ACTUATOR (UTILITY) SPLICE PACK TAN WIRE UNDERHOOD FUSE BLOCK UNDERHOOD FUSE BLOCK TRC FUSE UNLOCK VEHICLE SPEED SYSTEM VSS IGN KEY SWITCH DRV DR UNLK RLY W/ KEYLESS ENTRY WHT WIRE

BATTERY GROUND BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BEHIND DASH, ON HEATER CASE) BREAKOUT TO REAR WASHER PUMP MOTOR) BRN WIRE CRUISE FUSE 3 DK BLU WIRE DK BLU/WHT WIRE DOOR JAM SWITCH HEADLAMP REQ DOOR LOCKS DRIVER SEAT BELT SWITCH (UNDER LEFT FRONT SEAT) EXTERIOR LIGHTS, INTERIOR LIGHTS FRONT LT LEFT FUSE FRONT RT TURN FUSE GAUGES FUSE 4 GRN WIRE GRY WIRE HEADLAMP SWITCH HOT AT ALL TIMES UNDERHOOD FUSE BLOCK TBC FUSE HOT IN PARK OR HEAD HOT IN RUN HOT IN RUN, START I/P FUSE BLOCK IGNITION 3 SEAT BELT INPUT IGNITION KEY ALARM SWITCH INSTRUMENT CLUSTER INSTRUMENT CLUSTER (CENTER OF DASH) INSTRUMENT CLUSTER PICKUP LEFT DOOR JAMB SWITCH LEFT FRONT PARK/ TURN SIGNAL LAMP LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE ORG/ WIRE PARK LPS FUSE 5 PARK LPS IN KEY IN IGN KEY IN IGN PICKUP PKLP AUTO HDLP PNK IGNITION ON INPUT LEFT TURN SIG RIGHT TURN SIG WIRE PNK WIRE PNK/BLK WIRE PPL PPL/WHT WIRE RIGHT FRONT PARK/ TURN SIGNAL LAMP SEATS SYSTEM SERIAL DATA SERIAL DATA GROUND SPLICE PACK 200 TAN WIRE UNDERHOOD FUSE BLOCK UTILITY WHT WIRE