Chevrolet Silverado 2500 HD (2002-2012) blk Wiring diagrams

1 2 6 8 16 GND TCC PWM PC SOL HI PC SOL LO 1-2 SHIFT SOLENOID 2-3 SHIFT SOLENOID A/T FLUID PRESSURE MANUAL MANUAL VALVE POSITION SWITCH AUTOMATIC TRANSMISSION AUTOMATIC TRANSMISSION INPUT SHAFT SPEED SENSOR (IN TRANSMISSION) BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BELOW STEERING COLUMN) BRAKE FUSE BRN WIRE BRN/WHT WIRE CRUISE CONTROL SYSTEM DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE ENGINE COOLANT TEMPERATURE SENSOR (FRONT OF LEFT CYLINDER HEAD) EXCEPT SEO FLUID TEMP SENSOR FUSE GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT IN HOT IN RUN, ACC, START HOT IN RUN, START I/P FUSE BLOCK (LOWER LEFT SIDE OF DASH) I/P RELAY BLOCK (NEAR LEFT KICK PANEL) INSTRUMENT PANEL CLUSTER (IPC) IPC/DIC FUSE LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE MALFUNCTION INDICATOR LAMP OF TRANSMISSION) ORG/ WIRE ORG/BLK WIRE P/N PARK/NEUTRAL POSITION SWITCH (LEFT SIDE OF TRANSMISSION) PCM B FUSE PNK WIRE POWER DISTRIBUTION SYSTEM POWERTRAIN CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) PPL PPL DATA LINK CONNECTOR (BELOW STEERING COLUMN) PPL/WHT WIRE PRESS CTRL SOLENOID RED WIRE RED/BLK WIRE REV RUN WIRE SEO SPLICE PACK STOPLIGHT SWITCH (TOP OF BRAKE PEDAL BRACKET) TCC PWM SOLENOID TOW/HAUL SWITCH TRANSFER CASE) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) PCM 1 FUSE VEHICLE SPEED SENSOR WHT WIRE YEL WIRE YEL/BLK WIRE

1 2 6 8 16 GND TCC PWM PC SOL HI PC SOL LO 1-2 SHIFT SOLENOID 2-3 SHIFT SOLENOID A/T FLUID PRESSURE MANUAL MANUAL VALVE POSITION SWITCH AUTOMATIC TRANSMISSION AUTOMATIC TRANSMISSION INPUT SHAFT SPEED SENSOR (IN TRANSMISSION) BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BELOW STEERING COLUMN) BRAKE FUSE BRN WIRE BRN/WHT WIRE CRUISE CONTROL SYSTEM DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE ENGINE COOLANT TEMPERATURE SENSOR (FRONT OF LEFT CYLINDER HEAD) EXCEPT SEO FLUID TEMP SENSOR FUSE GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT IN HOT IN RUN, ACC, START HOT IN RUN, START I/P FUSE BLOCK (LOWER LEFT SIDE OF DASH) I/P RELAY BLOCK (NEAR LEFT KICK PANEL) INSTRUMENT PANEL CLUSTER (IPC) IPC/DIC FUSE LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE MALFUNCTION INDICATOR LAMP OF TRANSMISSION) ORG/ WIRE ORG/BLK WIRE P/N PARK/NEUTRAL POSITION SWITCH (LEFT SIDE OF TRANSMISSION) PCM B FUSE PNK WIRE POWER DISTRIBUTION SYSTEM POWERTRAIN CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) PPL PPL DATA LINK CONNECTOR (BELOW STEERING COLUMN) PPL/WHT WIRE PRESS CTRL SOLENOID RED WIRE RED/BLK WIRE REV RUN WIRE SEO SPLICE PACK STOPLIGHT SWITCH (TOP OF BRAKE PEDAL BRACKET) TCC PWM SOLENOID TOW/HAUL SWITCH TRANSFER CASE) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) PCM 1 FUSE VEHICLE SPEED SENSOR WHT WIRE YEL WIRE YEL/BLK WIRE

80 13 45 21 14 33 43 41 58 15 (GASOLINE) (DIESEL) A/C COMP CL RLY CTRL A/C COMPRESSOR CLUTCH A/C COMPRESSOR CLUTCH RELAY A/C LOW PRESSURE SWITCH (RIGHT SIDE OF ACCUMULATOR) A/C ON A/C RECIRC A/C REF PRE SENS SIG A/C REFRIGERANT PRESSURE SENSOR (IN HIGH SIDE PRESSURE LINE) AMBIENT AIR TEMPERATURE SENSOR (IN RIGHT FRONT BUMPER FILLER ASSEMBLY AUTO BLK WIRE BLK/WHT WIRE BLOWER MOTOR (RIGHT SIDE OF DASH) BLOWER MOTOR CONTROL PROCESSOR (BEHIND RIGHT SIDE OF DASH) BLWR FUSE BRN WIRE BRN/WHT WIRE CLASS 2 SER DATA CLASS 2 SERIAL DATA DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE FAN DN FAN UP FRT DEF GROUND GROUND TEMP SEN ASS CTRL BLOWER SPEED CTRL GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT AT ALL TIMES A/C COMP FUSE HOT IN HOT IN RUN OR START IGN E FUSE HVAC 1 FUSE HVAC CONTROL MODULE (BEHIND CENTER OF DASH) HVAC/ ECAS FUSE I/P FUSE BLOCK (LOWER LEFT SIDE OF DASH) I/P JUNCTION BLOCK (LOWER RIGHT SIDE OF DASH) I/P RELAY BLOCK (LEFT SIDE OF DASH) INSIDE AIR TEMPERATURE SENSOR ASSEMBLY (IN HEADLINER ABOVE DRIVER) INST LAMP DIM CTRL GROUND LEFT TEMP CONTROL LO PRESS SENS SIG RT TEMP DOOR CTRL LT TEMP DOOR CTRL LOGIC LOW REF LOWER LEFT AIR TEMPERATURE SENSOR (LEFT END OF HVAC MODULE) LOWER RIGHT AIR TEMPERATURE SENSOR (BOTTOM OF HVAC MODULE) LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE MODE MODE DOOR CTRL MODE DOOR CTRL IGN 3 LOW REF B(+) OFF ORG/ WIRE POWERTRAIN CONTROL MODULE OR ENGINE CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) PPL PPL/WHT WIRE RECIR RECIR DOOR CTRL RT TEMP DOOR CTRL LT TEMP DOOR CTRL RED WIRE RED/BLK WIRE RIGHT I/P FUSE BLOCK (LOWER RIGHT SIDE OF DASH) RIGHT TEMP CONTROL RUN WIRE SPEED CTRL B(+) GROUND TAN WIRE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT, NEAR BATTERY) UPPER LEFT AIR TEMPERATURE SENSOR (BELOW DASH TRIM PANEL) UPPER RIGHT AIR TEMPERATURE SENSOR (BELOW DASH TRIM PANEL) WHT WIRE WHT/BLK WIRE YEL WIRE

11 12 PPL AMBIENT LIGHT SENS LO REF AMBIENT LIGHT SENS SIG RIGHT SUNLOAD SENSOR SIG LEFT SUNLOAD SENSOR SIG AMBIENT LIGHT SENSOR AMBIENT LIGHT/SUNLOAD SENSOR ASSEMBLY (TOP CENTER OF DASH) BLK WIRE BODY CONTROL MODULE (LOWER LEFT SIDE OF DASH, BELOW STEERING COLUMN) BRN WIRE CLASS 2 SERIAL DATA DK BLU WIRE DK GRN WIRE GRY WIRE I/P JUNCTION BLOCK (LOWER RIGHT SIDE OF DASH) LEFT AIR TEMPERATURE ACTUATOR (BOTTOM OF HVAC MODULE) LEFT SOLAR SENSOR LOGIC LT BLU WIRE LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN WIRE MODE ACTUATOR (LEFT SIDE OF HVAC MODULE) PPL RECIRCULATION ACTUATOR (UPPER RIGHT OF HVAC MODULE) RIGHT AIR TEMPERATURE ACTUATOR (TOP OF HVAC MODULE) RIGHT SOLAR SENSOR TAN WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

ACCESSORY VOLTAGE BLK WIRE DK BLU WIRE GROUND LSD GRY WIRE HI LO OFF HOT AT ALL TIMES HOT IN RUN AND ACC LEFT I/P FUSE BLOCK (LOWER LEFT SIDE OF DASH) LO PULSE MIST MIST WASH OFF ORG/ WIRE PNK WIRE RED WIRE TAN WIRE TURN SIGNAL/ MULTI-FUNCTION SWITCH UNDERHOOD FUSE BLOCK (ON LEFT SIDE OF ENGINE COMPT) W/S WASH FUSE W/S WASH RELAY W/S WIPER FUSE WINDSHIELD WASHER FLUID PUMP (ON WASHER FLUID RESERVOIR) WINDSHIELD WASHER RELAY CNTRL WINDSHIELD WIPER HIGH SIGNAL WINDSHIELD WIPER MOTOR MODULE (UNDER WINDSHIELD COWL) WINDSHIELD WIPER SUPPLY VOLTAGE WINDSHIELD WIPER SWITCH SIGNAL WINDSHIELD WIPER/ WASHER SWITCH YEL WIRE

80 13 45 21 14 33 43 41 58 15 (GASOLINE) (DIESEL) A/C COMP CL RLY CTRL A/C COMPRESSOR CLUTCH A/C COMPRESSOR CLUTCH RELAY A/C LOW PRESSURE SWITCH (RIGHT SIDE OF ACCUMULATOR) A/C ON SWITCH A/C RECIRC A/C REF PRE SENS SIG A/C REFRIGERANT PRESSURE SENSOR (IN HIGH SIDE PRESSURE LINE) BLK WIRE BLK/WHT WIRE BLOWER FUSE BLOWER MOTOR (UNDER RIGHT SIDE OF DASH) BLOWER MOTOR CONTROL SWITCH BLOWER MOTOR RELAY BLOWER MOTOR RESISTOR ASSEMBLY (ON HVAC MODULE, NEAR BLOWER MOTOR) BRN WIRE BRN/WHT WIRE CLASS 2 SER DATA CLASS 2 SERIAL DATA DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE FRT DEF GRY WIRE HOT AT ALL TIMES HOT AT ALL TIMES A/C COMP FUSE HOT IN HOT IN RUN OR START IGN E FUSE HTR A/C FUSE HVAC 1 FUSE HVAC CONTROL MODULE (BEHIND CENTER OF DASH) HVAC/ ECAS FUSE I/P FUSE BLOCK (LOWER LEFT SIDE OF DASH) I/P JUNCTION BLOCK (LOWER RIGHT SIDE OF DASH) I/P RELAY BLOCK (LEFT SIDE OF DASH) INST LAMP DIM CTRL GROUND LEFT TEMP CONTROL LOGIC LOW REF LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE MODE CONTROL MODE DOOR CTRL MODE DOOR CTRL IGN 3 LOW REF B(+) OFF OFF BLOW MT CTRL LO PRESS SENS SIG RT TEMP DOOR CTRL LT TEMP DOOR CTRL ORG/ WIRE POWERTRAIN CONTROL MODULE OR ENGINE CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) PPL RECIR DOOR CTRL RT TEMP DOOR CTRL LT TEMP DOOR CTRL RECIRC SWITCH RED WIRE RED/BLK WIRE RIGHT TEMP CONTROL RUN WIRE TAN WIRE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT, NEAR BATTERY) WHT WIRE WHT/BLK WIRE YEL WIRE

BLK WIRE BODY CONTROL MODULE (LOWER LEFT SIDE OF DASH, BELOW STEERING COLUMN) BRN WIRE CLASS 2 SERIAL DATA DK BLU WIRE DK GRN WIRE I/P JUNCTION BLOCK (LOWER RIGHT SIDE OF DASH) LEFT AIR TEMPERATURE ACTUATOR (BOTTOM OF HVAC MODULE) LOGIC LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE MODE ACTUATOR (LEFT SIDE OF HVAC MODULE) RECIRCULATION ACTUATOR (UPPER RIGHT OF HVAC MODULE) LOGIC RIGHT AIR TEMPERATURE ACTUATOR (TOP OF HVAC MODULE) TAN WIRE WHT/BLK WIRE YEL WIRE

4.3L 4.8L, 5.3L, 4.3L DIESEL 6.0L, 6.2L 43 44 57 44 28 27 GMLAN BUS + GMLAN BUS - AUX HVAC-IGN FUSE 48 FUSE 45 AXLE SW SIG BLK WIRE BLK/WHT WIRE COMPUTER DATA LINES SYSTEM DK GRN WIRE ENGINE CONTROL MODULE (ECM) (LEFT FRONT OF ENGINE COMPT, NEAR FAN SHROUD) FRONT AXLE ACTUATOR (ON FRONT AXLE ASSEMBLY) GAS DIESEL GRY/BLK WIRE HOT W/ RUN/CRNK RELAY ENERGIZED IGN IGN LOGIC INSTRUMENT PANEL CLUSTER (IPC) LOGIC PNK WIRE TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TRANS IGN 1 FUSE 19 FUSE 13 TRANSFER CASE SHIFT CONTROL SWITCH (ON TOP LEFT OF TRANSFER CASE) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT)

ANL/DRL DEFEAT AUTO BATTERY BATTERY BATTERY BATTERY GROUND BLK WIRE BLK/WHT WIRE BLU WIRE BODY CONTROL MODULE (BCM) (ON LOWER LEFT SIDE OF DASH, BELOW STEERING COLUMN) CREW CAB ONLY FUSE GROUND DISTRIBUTION SYSTEM GRY WIRE GRY/BLK WIRE HEAD PARK HEADLAMP SWITCH HOT AT ALL TIMES HOT IN ACC, RUN HOT IN ACC, RUN, START HOT IN RUN, START I/P FUSE BLOCK (ON LOWER LEFT SIDE OF DASH) I/P RELAY BLOCK (NEAR LEFT KICK PANEL) IGNITION KEY ALARM SWITCH LEFT REAR DOOR LATCH ASSEMBLY LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE ORG/ WIRE ORG/BLK WIRE PARK BRAKE SWITCH (PART OF PARK BRAKE ASSEMBLY) PARK LAMP ON SIGNAL GROUND DIMMING INPUT PNK WIRE POWER DISTRIBUTION SYSTEM RIGHT REAR DOOR AJAR SW LEFT REAR DOOR AJAR SW RIGHT REAR DOOR LATCH ASSEMBLY SERIAL DATA TAN WIRE TBC ACCY FUSE TBC BATT FUSE TBC IGN 0 FUSE TBC IGN 1 FUSE UNDERHOOD FUSE BLOCK (AT LEFT SIDE OF ENGINE COMPARTMENT) WHT WIRE YEL WIRE

22 3 11 SERIAL DATA LEFT SEAT BELT LOW REFERENCE 22 3 18 SERIAL DATA LOW REFERENCE LEFT DOOR AJAR SW 22 5 20 SERIAL DATA DOOR AJAR SWITCH LOW REFERENCE BASE BLK WIRE BLK/WHT WIRE BLU WIRE BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DRIVER DOOR LATCH ASSEMBLY DRIVER DOOR MODULE (DDM) (IN DRIVER'S DOOR) DRIVER SEAT BELT SWITCH FRONT PASSENGER DOOR LATCH ASSEMBLY FRONT PASSENGER DOOR MODULE (FPDM) (IN RIGHT FRONT DOOR) GROUND DISTRIBUTION SYSTEM GRY WIRE GRY/BLK WIRE I/P FUSE BLOCK (ON LOWER LEFT SIDE OF DASH) I/P JUNCTION BLOCK (RIGHT SIDE OF DASH, BEHIND ACCESS PANEL) IGN INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE (SDM) (UNDER LEFT FRONT SEAT) INSTRUMENT PANEL CLUSTER (IPC) LEFT TURN LOGIC LT BLU WIRE LT GRN WIRE ORG/ WIRE PNK 1045 1044 WIRE POWERTRAIN CONTROL MODULE (PCM) (ON LEFT FRONT OF ENGINE COMPARTMENT) PPL PPL 1132 1036 1037 1047 1046 RADIO RIGHT TURN SEAT BELT SERIAL DATA SUPPLEMENTAL RESTRAINTS SYSTEM TAN WIRE W/CONVENIENCE PACKAGE COMFORT, DECOR LEVEL 3 W/MEMORY SEATS WHT WIRE YEL WIRE