GMC Sonoma II (1994-2004) (left side of dash) Wiring diagrams

0.26 OHMS 2.10 OHMS 8 CM FROM BREAKOUT TO RADIO) A/C A/C COMP RELAY CTRL A/C COMPRESSOR CLUTCH A/C COMPRESSOR CLUTCH DIODE A/C COMPRESSOR CLUTCH RELAY A/C FUSE A/C PRESS SENS SIG A/C REFRIGERANT PRESSURE SENSOR (ON A/C EVAPORATOR TUBE) A/C REQUEST SIGNAL AIR TEMPERATURE ACTUATOR (ON TOP RIGHT SIDE OF HEATER) BLEND BLK WIRE BLOWER MOTOR (ON RIGHT REAR OF ENGINE COMPARTMENT) BLOWER MOTOR RELAY (ON CENTER REAR OF ENGINE COMPARTMENT) BLOWER SWITCH BRN WIRE DEF DK BLU WIRE DK GRN 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 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 POWER MIRRORS SYSTEM (AUTOMATIC DAY/NIGHT MIRROR) POWERTRAIN CONTROL MODULE (PCM) (ON RIGHT FRONT OF ENGINE COMPARTMENT) PPL RED/BLK WIRE SECONDARY AIR INJECTION REACTOR PUMP SENSOR GND SERVO AMPLIFIER TAN WIRE TEMP CONTROL UNDERHOOD FUSE BLOCK (ON TOP OF LEFT FRONT INNER WHEELWELL) UNDERHOOD FUSE BLOCK (ON TOP OF LEFT FRONT INNER WHEELWELL) HVAC FUSE

0.26 OHMS 2.10 OHMS 8 CM FROM BREAKOUT TO RADIO) A/C A/C COMP RELAY CTRL A/C COMPRESSOR CLUTCH A/C COMPRESSOR CLUTCH DIODE A/C COMPRESSOR CLUTCH RELAY A/C FUSE A/C PRESS SENS SIG A/C REFRIGERANT PRESSURE SENSOR (ON A/C EVAPORATOR TUBE) A/C REQUEST SIGNAL AIR TEMPERATURE ACTUATOR (ON TOP RIGHT SIDE OF HEATER) BLEND BLK WIRE BLOWER MOTOR (ON RIGHT REAR OF ENGINE COMPARTMENT) BLOWER MOTOR RELAY (ON CENTER REAR OF ENGINE COMPARTMENT) BLOWER SWITCH BRN WIRE DEF DK BLU WIRE DK GRN 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 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 POWER MIRRORS SYSTEM (AUTOMATIC DAY/NIGHT MIRROR) POWERTRAIN CONTROL MODULE (PCM) (ON RIGHT FRONT OF ENGINE COMPARTMENT) PPL RED/BLK WIRE SECONDARY AIR INJECTION REACTOR PUMP SENSOR GND SERVO AMPLIFIER TAN WIRE TEMP CONTROL UNDERHOOD FUSE BLOCK (ON TOP OF LEFT FRONT INNER WHEELWELL) UNDERHOOD FUSE BLOCK (ON TOP OF LEFT FRONT INNER WHEELWELL) HVAC FUSE

0.26 OHMS 0.71 OHMS 2.10 OHMS 8 CM FROM BREAKOUT TO RADIO) 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 TEMPERATURE ACTUATOR (ON TOP RIGHT SIDE OF HEATER) 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 FRONT OF ENGINE COMPARTMENT) PPL SECONDARY AIR INJECTION REACTOR PUMP SERVO AMPLIFIER TAN WIRE TEMP CONTROL UNDERHOOD FUSE BLOCK (ON TOP OF LEFT FRONT INNER WHEELWELL)

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 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

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

0.26 OHMS 0.71 OHMS 2.10 OHMS 8 CM FROM BREAKOUT TO RADIO) AIR TEMPERATURE ACTUATOR (ON TOP RIGHT SIDE OF HEATER) BI-LEVEL BI-LEVEL BLEND HEAT VENT BLEND VENT HEAT BLK 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 DEFROST DEFROST OFF DK BLU WIRE GRY WIRE HEATER CONTROLLER HOT AT ALL TIMES HOT IN PARK, HEAD HOT IN RUN HVAC 1 FUSE 21 HVAC FUSE HVAC FUSE 9 I/P FUSE BLOCK (ON LEFT END OF DASH) ILLUM ILLUM FUSE 12 LOW MED 1 MED 2 LT BLU WIRE MODE DOOR SWITCH OFF ORG/ WIRE PPL SERVO AMPLIFIER TAN WIRE TEMP CONTROL UNDERHOOD FUSE BLOCK (ON TOP OF LEFT FRONT INNER WHEELWELL)

0.26 OHMS 0.71 OHMS 2.10 OHMS 8 CM FROM BREAKOUT TO RADIO) AIR TEMPERATURE ACTUATOR (ON TOP RIGHT SIDE OF HEATER) BI-LEVEL BI-LEVEL BLEND HEAT VENT BLEND VENT HEAT BLK 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 DEFROST DEFROST OFF DK BLU WIRE GRY WIRE HEATER CONTROLLER HOT AT ALL TIMES HOT IN PARK, HEAD HOT IN RUN HVAC 1 FUSE 21 HVAC FUSE HVAC FUSE 9 I/P FUSE BLOCK (ON LEFT END OF DASH) ILLUM ILLUM FUSE 12 LOW MED 1 MED 2 LT BLU WIRE MODE DOOR SWITCH OFF ORG/ WIRE PPL SERVO AMPLIFIER TAN WIRE TEMP CONTROL UNDERHOOD FUSE BLOCK (ON TOP OF LEFT FRONT INNER WHEELWELL)

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

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