GMC Sonoma II (1994-2004) org/ Wiring diagrams

BLK WIRE BRN WIRE DRIVER OUTSIDE REAR- VIEW MIRROR FRONT PASSENGER OUTSIDE REARVIEW MIRROR GRY WIRE HOT AT ALL TIMES HOT IN RUN I/P FUSE BLOCK (ON LEFT END OF DASH) HVAC 1 FUSE 21 HOT IN RUN, START HTD MIRROR FUSE RR DEFOG FUSE HVAC CONTROL ASSEMBLY IGN E FUSE ILL NCA WIRE ON LED ORG/ WIRE PPL REAR WINDOW DEFOGGER GRID REAR WINDOW DEFOGGER RELAY SPLICE PACK TIMER CIRCUIT UNDERHOOD FUSE BLOCK (ON TOP OF LEFT FRONT FENDER) UTILITY VEHICLES ONLY WHT WIRE

BLK WIRE BLU WIRE BODY CONTROL MODULE (UNDER DASH, ON HEATER CASE) BODY RELAY BLOCK (BEHIND LEFT SIDE OF DASH) BRN WIRE CENTER HIGH MOUNT STOP LAMP RIGHT REAR PARK/ TURN SIGNAL LAMP DK DK DK LT FR PRK FUSE FROM TR CHMSL (DIAGRAM 1 OF 1) GRN WIRE GRY WIRE HAZ LP FUSE HAZARD NORMAL HAZARD, TURN PWR HEADLAMP SWITCH HIGHT MOUNT STOP LAMP RELAY HOT AT ALL TIMES HOT IN RUN OR START I/P FUSE BLOCK (LEFT SIDE OF DASH) TURN FUSE I/P FUSE BLOCK (LEFT SIDE OF DASH, LEFT FRONT MARKER LAMP LEFT FRONT PARK/ TURN SIGNAL LAMP LEFT REAR MARKER LAMP LEFT REAR PARK/ TURN SIGNAL LAMP LEFT TURN IN LEFT TURN IND RIGHT TURN IND LT BLU WIRE LT DK LT INSTRUMENT CLUSTER LT LT LT PNK WIRE LT TRN (REAR) FUSE LT TURN FUSE MULTI- FUNCTION SWITCH NCA WIRE OFF HEAD ORG/ WIRE OTHER PARK PARK LAMP RELAY PARK LP FUSE PNK WIRE PPL PPL FLSHR OUT PRK LP FUSE 18 RIGHT FRONT MARKER LAMP RIGHT FRONT PARK/ TURN SIGNAL LAMP RIGHT LEFT RIGHT LICENSE LAMP RIGHT REAR MARKER LAMP LEFT LICENSE LAMP RIGHT TURN IN PARK RLY CTRL RR PRK FUSE LR PRK FUSE RT TRN (REAR) FUSE VEH CHMSL FUSE RT TURN FUSE STOP LP FUSE STOPLAMP SWITCH (ON BRAKE PEDAL SUPPORT BRACKET) TO HIGH MOUNT STOP LAMP RELAY (DIAGRAM 1 OF 1) TR CHMSL FUSE TRAILER WIRING PROVISION UNDERHOOD FUSE BLOCK (TOP OF LEFT FRONT FENDER) W/O PWR LOCKS WHT WIRE YEL WIRE YEL/BLK WIRE

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

* - 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

7 8 9 10 11 12 FUSED IGN GROUND VSS IN AIR TEMP INT LITE DIM PARKLAMPS AIR BAG IND ANTI-LOCK IND 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) BRAKE IND BRN WIRE BRN/WHT WIRE CHARGE IND CHECK GAUGES IND CLR IC LOGIC CLSTR FUSE 11 COOLANT TEMPERATURE CRUISE FUSE 3 CTSY LAMP FUSE 8 DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE DRIVER INFORMATION CENTER MODULE (IN FRONT OVERHEAD CONSOLE) ENG SPD VSS IGN 3 SERIAL DATA EXTERIOR LIGHTS SYSTEM INTERIOR LIGHTS SYSTEM FUEL FUSED BATT SERIAL DATA GAUGES FUSE 4 GRN WIRE GROUND PARK SW BATT GRY WIRE HIGH BEAM IND HOT AT ALL TIMES HOT IN ACCY, RUN OR RAP HOT IN RUN HOT IN RUN OR START HOT IN RUN, BULB TEST OR START HOT W/HEADLAMP SW IN PARK OR HEAD I/P FUSE BLOCK (LEFT END OF DASH) IGN 1 OFF/RUN ILLUM FUSE 12 ILLUMINATION (6 BULB) INSTRUMENT CLUSTER LEFT TURN LOW FUEL LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE MIL (SERVICE ENGINE SOON IND) ODOMETER DISPLAY OIL ORG/ WIRE ORG/BLK WIRE OVER SPEED ALARM IND P R N D 3 2 1 PARK SWITCH (IN STEERING COLUMN) PNK PNK WIRE PNK WIRE PNK/BLK WIRE PPL/WHT WIRE RDO BATT FUSE 19 RDO IGN FUSE 24 RED WIRE RIGHT TURN SEAT BELT IND SECURITY IND SERVICE SPARE SPEEDOMETER SPLICE SPLICE PACK TACHOMETER TAIL GATE ALARM IND TAN/WHT WIRE TRANSFER CASE SHIFT CONTROL MODULE (BEHIND RIGHT FRONT KICK PANEL) TRIP RESET UPSHIFT IND VOLT W/ TRIP COMPUTER WHT WIRE YEL WIRE

14 15 16 PPL 20 21 PNK WIRE 6 7 PNK WIRE 8 9 PNK WIRE A/C PRES ABS FUSE 22 ANTI-LOCK BRAKES SYSTEM ANTI-LOCK BRAKES SYSTEM PPL BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (UNDER DASH, ON HEATER CASE) BRN WIRE BRN/WHT WIRE CLSTR FUSE 11 DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE ECM I FUSE ECM-B FUSE ECT SENSOR FUEL LEVEL IN PPL FUEL PUMP FUEL PUMP RELAY FUEL PUMP/ SENDER FUEL PUMP/ SENDER (TOP OF FUEL TANK) FUEL TANK PRES CMP SENS CKP REF FUEL TANK PRES TFT SENSOR GENERATOR ANTI-LOCK BRAKES SYSTEM GRY WIRE HOT AT ALL TIMES HOT IN OFF, RUN OR START HOT IN RUN I/P FUSE BLOCK HOT IN RUN OR START IGN CTRL 2-3 IGN CTRL 1-4 KNOCK SENSOR (LOWER RIGHT SIDE OF ENG) KS SIGNAL LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE ORG/ WIRE ORG/BLK WIRE PARK/NEUTRAL POSITION, BACK-UP LAMP SWITCH (LEFT SIDE OF TRANSMISSION) PCM GND IGN BATTERY TP SENSOR PNK WIRE PNK 12 13 WIRE PNK WIRE POWERTRAIN CONTROL MODULE (RIGHT FRONT OF ENGINE COMPARTMENT) PPL PPL PPL CRUISE CONTROL SYSTEM PPL TCC/CLUTCH SW A/C REQ SIG PPL/WHT WIRE RED WIRE RED/BLK WIRE THROTTLE POSITION SENSOR (ON THROTTLE BODY) TP SENSOR CLASS 2 SERIAL DATA II PCM GROUND IGN IN MAP SENSOR VSS HIGH TX RANGE C PRNDL "A" UNDERHOOD FUSE BLOCK WHT WIRE YEL WIRE YEL/BLK WIRE

1 2 3 4 5 PPL 1-2 SHIFT SOLENOID VALVE 14 15 16 PPL 2-3 COIL CTRL 2-3 SHIFT SOLENOID VALVE 20 21 PNK WIRE 3-2 SHIFT SOLENOID VALVE 6 7 PNK WIRE 8 9 PNK WIRE AUTOMATIC TRANSMISSION AUTOMATIC TRANSMISSION FLUID PRESSURE MANUAL VALVE POSITION SWITCH BLK WIRE BLK/WHT WIRE BLU WIRE BRN WIRE BRN/WHT WIRE CKP SIG IGN CTRL A IGN CTRL B REF SIG CKP GND REF LOW COIL POS 1-4 COIL CTRL CRANKSHAFT POSITION SENSOR (BELOW IGNITION COIL) DK BLU WIRE DK GRN/WHT WIRE ENGINE COOLANT TEMPERATURE SENSOR (FRONT OF ENGINE) FUEL COMPOSITION SENSOR (TOP RIGHT OF TRANSMISSION) FUEL INJECTORS GRY WIRE IGN GND IGNITION CONTROL MODULE (RIGHT REAR OF ENG) LT BLU WIRE LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE NCA WIRE ORG/ WIRE OXYGEN SENSOR (BANK 1 SENSOR 1) (IN EXHAUST MANIFOLD) PNK 12 13 WIRE PNK 239 451 WIRE PNK WIRE PNK/BLK WIRE POSITION SIGNAL PPL PPL 12 13 PPL 574 423 406 430 573 453 PPL PNK REF SIG CTRL IGN FUEL COMP TEMP SIG WIRE PPL/WHT WIRE PRESSURE CONTROL SOLENOID VALVE RED WIRE RED/BLK WIRE SHIELD TAN WIRE TAN/BLK WIRE TO SPARK PLUGS TORQUE CONVERTER CLUTCH PWM SOLENOID VALVE TORQUE CONVERTER CLUTCH SOLENOID VALVE TRANSMISSION FLUID TEMPERATURE SENSOR TWISTED WIRE PAIR VEHICLE SPEED SENSOR (REAR OF TRANSMISSION) WHT WIRE YEL WIRE YEL/BLK WIRE

3-2 SOL LOW REF 5 V REF 5 V REF 5 V REF ABS FUSE 22 BATTERY CLASS 2 DATA CLASS 2 DATA LOW REF LOW REF BLK WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE CKP SIG CLSTR FUSE 11 CLUTCH PEDAL POSITION SWITCH (ON CLUTCH PEDAL SUPPORT BRACKET) CRANKSHAFT POSITION SENSOR (FRONT OF ENGINE NEAR CRANKSHAFT PULLEY) DK BLU WIRE DK GRN WIRE GRN WIRE GROUND GRY WIRE HEATED OXYGEN SENSOR (BANK 1 SENSOR 2) (IN EXHAUST, AFTER CATALYTIC CONVERTER) HOT IN OFF, RUN OR START HOT IN RUN I/P FUSE BLOCK INJ 4 CTRL INJ 5 KNOCK SENSOR (TOP REAR OF ENGINE) KS SIG LOW REF LOW REF LOW REF LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE LT PPL NCA WIRE ORG/ WIRE P/N PARK/NEUTRAL POSITION, BACK-UP LAMP SWITCH (LEFT SIDE OF TRANSMISSION) PNK 7 8 WIRE PNK WIRE PNK/BLK WIRE POWERTRAIN CONTROL MODULE (RIGHT FRONT OF ENGINE COMPT) PPL PPL PNK WIRE PPL/WHT WIRE RED WIRE STOPLAMP SWITCH (ON BRAKE PEDAL SUPPORT BRACKET) TAN WIRE TRANS SIG A TCC SW TRANS SW P CPP SW INJ 1 INJ 3 PPL TRANS SW B CMP SENS ECT SENS OFF/CRK/RUN INJ 2 INJ 6 TRANS SW B TRANS SW C IGN 1 BATTERY LOW REF WHT WIRE YEL WIRE YEL/BLK WIRE

1-2 SHIFT SOL 2-3 SHIFT SOL AUTOMATIC TRANSMISSION BLK WIRE BLK/WHT WIRE BLU WIRE BRN WIRE CENTRAL SEQUENTIAL FUEL INJECTION DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE ECM I FUSE ENG-I FUSE EVAPORATIVE EMISSION CANISTER PURGE SOLENOID (TOP RIGHT CENTER OF ENGINE) EVAPORATIVE EMISSION CANISTER VENT SOLENOID (REAR OF FUEL TANK) FUEL INJ 1 FUEL INJ 4 FUEL INJ 2 FUEL INJ 5 FUEL INJ 3 FUEL INJ 6 GRY WIRE HOT IN RUN OR START LO SW LT BLU WIRE LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE ORG/ WIRE OXYGEN FUSE PNK 25 26 27 28 WIRE PNK 7 8 WIRE PNK PNK PNK 1 2 3 4 5 6 WIRE PNK WIRE PNK/BLK WIRE PPL LT 3-2 CONTROL SOL PRESSURE CONTROL SOLENOID VALVE RED WIRE RED/BLK WIRE REV SW AUTOMATIC TRANSMISSION FLUID PRESSURE MANUAL VALVE POSITION SWITCH TAN WIRE TAN/BLK WIRE TCC PWM SOL TCC SOL TRANSMISSION FLUID TEMPERATURE SENSOR UNDER- HOOD FUSE BLOCK WHT WIRE YEL WIRE YEL/BLK WIRE

A/C SYSTEM BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (UNDER DASH, ON HEATER CASE) BRN WIRE BRN/WHT WIRE DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE ECM-B FUSE ENG SPD FUEL PUMP PRIME CONNECTOR FUEL PUMP RELAY FUEL PUMP, SENDER ASSEMBLY (ON TOP OF FUEL TANK) FUEL TANK PRESSURE SENSOR (TOP OF FUEL TANK) GRY WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER INSTRUMENT CLUSTER SYSTEM INTAKE AIR TEMPERATURE SENSOR (IN FRESH AIR INTAKE DUCT) LT BLU/WHT WIRE LT GRN WIRE LT GRN/WHT WIRE MAF SIG MANIFOLD ABSOLUTE PRESSURE SENSOR (TOP CENTER OF ENGINE) MASS AIRFLOW SENSOR (MAF) (ON AIR INTAKE ASSY) MIL INPUT ORG/ WIRE PICK-UP PICK-UP UTILITY PNK 25 26 27 28 WIRE PNK PNK PNK 1 2 3 4 5 6 WIRE PNK PNK WIRE PNK WIRE PPL RED WIRE RED/BLK WIRE SPLICE PACK 201 (LEFT SIDE OF DASH) SPLICE PACK 422/423 (REAR FRAME RAIL) TAN WIRE TAN/BLK WIRE THROTTLE POSITION SENSOR (ON THROTTLE BODY ASSEMBLY) UNDERHOOD FUSE BLOCK UTILITY UTILITY PICK-UP WHT WIRE YEL WIRE YEL/BLK WIRE