GMC Sonoma II (1994-2004) red 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 ELECTRONIC BRAKE CONTROL MODULE (EBCM) (ON LEFT FRONT INNER FENDER) FRONT AXLE INDICATOR SWITCH (ON FRONT AXLE, 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 FENDER) VEHICLE SPEED SIGNAL W/ ELECTRIC SHIFT CONTROL (2 SPEED) WIPER/ WASHER SYSTEM 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

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

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

1 2 3 4 5 PPL 121 719 PPL 472 413 412 1669 1668 IAT SENS SIG 718 720 407 ECT SENS IAT SENS TFT SENSOR 817 389 VSS OUT VSS OUT A/C CLUTCH RLY EVAP CANP TCC PWM SOL EVAP CAN VNT AIR CONDITIONING SYSTEM AIR PUMP RELAY AIR RELAY AIR SOL FUSE AIR FUSE BATTERY FUSE BLK WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE CLASS 2 DATA CMP SENS B+ CRUISE CONTROL SYSTEM CRUISE DISABLE/ FUEL LEVEL PPL CRUISE ENGAGED DK GRN WIRE DK GRN/WHT WIRE ENG-I FUSE F PUMP RLY PC SOL TACH SIGNAL REF SIG FUSE HOLDER GRY WIRE HOT AT ALL TIMES HOT IN RUN OR START ICM REF LO IDLE AIR CONTROL VALVE (ON THROTTLE BODY ASSEMBLY) INSTRUMENT CLUSTER INSTRUMENT CLUSTER SYSTEM SOUND SYSTEMS INTAKE AIR TEMPERATURE SENSOR (IN FRESH AIR INTAKE DUCT) LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE MAP SENSOR MIL CTRL MIL INPUT OXYGEN FUSE ENG-I FUSE PC SOL VLV CTRL PNK WIRE PNK/BLK WIRE POWERTRAIN CONTROL MODULE (RIGHT FRONT OF ENGINE COMPARTMENT) PPL PPL 12 13 PPL/WHT WIRE RED WIRE RED/BLK WIRE SECONDARY AIR INJECTION REACTOR FUSE BLOCK (RIGHT FRONT FENDER) SECONDARY AIR INJECTION REACTOR PUMP (LOWER RIGHT FRONT OF ENG COMPT) SHFT IND/TCC 2-3 SS VALVE 3-2 SS VALVE 1-2 SS VALVE TACH SIGNAL TAN WIRE TAN/BLK WIRE TAN/WHT WIRE UNDER- HOOD FUSE BLOCK VSS LOW CMP SENS GND PCM GND WHT 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

12 V REF GROUND 225 1694 TRANSMISSION SYSTEM A/C SYSTEM ANTI-LOCK BRAKE SYSTEM AXLE SW VSS LOW VSS HI BLK WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE CRUISE CONTROL SYSTEM CRUISE ENG DISTRIBUTOR (TOP REAR OF ENGINE) DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE ELECTRONIC IGNITION CONTROL MODULE (TOP RIGHT SIDE OF ENGINE) EVAP PURGE EVAP VENT MIL 2-3 SHIFT 1-2 SHIFT VSS VSS TFT SENSOR GEN F GEN T/O AXLE SW A/C REQ GRY WIRE GRY/BLK WIRE HIGH VOLTAGE COIL WIRE IAC B HI IAC B LO IAC A LO IAC A HI IDLE AIR CONTROL VALVE (ON THROTTLE BODY ASSEMBLY) IGNITION COIL (RIGHT SIDE OF ENGINE) LOW REF LT BLU WIRE LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE MAF SIG MAP SIG NCA WIRE PC SOL PC SOL FUEL PMP RLY ENGINE SPD PNK IGNITION FEED IGN TIMING SIG. TACH. SIG. GROUND WIRE PNK PNK WIRE PNK WIRE POWERTRAIN CONTROL MODULE (RIGHT FRONT OF ENG COMPT) PPL PPL FUEL LEV A/C LOW PPL/WHT WIRE RED WIRE RED/BLK WIRE SPARK PLUGS STARTING/ CHARGING SYSTEM TAN WIRE TAN/BLK WIRE TCC SOL A/C CLU TP SENS IAT SENS IC TIMING TRANS SIG C TRANS SIG A TANK PRES PNK WIRE TRANSMISSION SYSTEM VEHICLE SPEED SENSOR (REAR OF TRANSMISSION) WHT WIRE WHT/ BLK WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE