Chevrolet Silverado 1500 HD (2001-2006) splice pack Wiring diagrams

1-2 SHIFT SOLENOID 2-3 SHIFT SOLENOID 41 46 54 57 58 59 63 72 74 75 LO REF A/T FLUID PRESSURE MANUAL VALVE POSITION SWITCH AUTOMATIC TRANSMISSION BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (LOWER LEFT SIDE OF DASH, BELOW STEERING COLUMN) BODY RELAY BLOCK (UNDER LEFT END OF DASH) BRAKE FUSE BRN WIRE BRN/WHT WIRE DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE ECMB FUSE EXCEPT LIGHT DUTY FLUID TEMP SENSOR FUSE GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT IN HOT IN RUN, BULB TEST, START HOT IN RUN, START INSTRUMENT CLUSTER INSTRUMENT PANEL CLUSTER (IPC) LEFT I/P FUSE BLOCK (LOWER LEFT SIDE OF DASH) LIGHT DUTY LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE MALFUNCTION INDICATOR LAMP ORG/ WIRE PARK/NEUTRAL POSITION SWITCH (LEFT SIDE OF TRANSMISSION) PNK PNK WIRE PNK WIRE POWERTRAIN CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) PPL PPL ABS SYSTEM PPL DATA LINK CONNECTOR (UNDER LEFT SIDE OF DASH) PPL PPL PPL/WHT WIRE PRESS CTRL SOLENOID RED WIRE RED/BLK WIRE REV, LO RUN WIRE SENS GND B+ CLS 2 DATA CLS 2 DATA SENS GND PRND B ECT SIG IGN SPLICE PACK STOPLIGHT SWITCH (TOP OF BRAKE PEDAL BRACKET) TCC PWM SOLENOID TRANSFER CASE) (ON TRANSMISSION) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT, NEAR BATTERY) VSS ADAPTER W/ TRACTION ASSIST W/O TRACTION ASSIST WHT WIRE YEL WIRE YEL/BLK WIRE

3 2 PPL BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (ON LOWER LEFT SIDE OF DASH, BELOW STEERING COLUMN) BODY RELAY BLOCK BODY RELAY BLOCK (UNDER LEFT SIDE OF DASH, NEAR KICK PANEL) BRN/WHT WIRE CIGAR FUSE DATA LINK CONNECTOR (DLC) (UNDER LEFT SIDE OF DASH, BELOW STEERING COLUMN) DIESEL DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE DRIVER INFORMATION CENTER (DIC) ELECTRONIC BRAKE CONTROL MODULE (EBCM) (ON LEFT SIDE OF INNER FRAME) GRY WIRE HOT AT ALL TIMES HVAC CONTROL MODULE (BEHIND CENTER OF DASH) INSTRUMENT PANEL CLUSTER (IPC) LT BLU WIRE LT GRN WIRE MEMORY SEAT MODULE (UNDERSODE OF DRIVER SEAT) 15 14 13 12 11 10 9 8 7 6 NEAR KICK PANEL) ORG/ WIRE POWERTRAIN CONTROL MODULE (PCM) (ON LEFT FRONT OF ENGINE COMPT) SPLICE PACK TRANSFER CASE SHIFT CONTROL MODULE (BEHIND HEADLAMP SWITCH) TRANSMISSION CONTROL MODULE (AT LEFT FRONT OF ENG COMPT) UNDERHOOD FUSE BLOCK (AT LEFT SIDE OF ENG COMPT, NEAR BATTERY) UNDERHOOD FUSE BLOCK (AT LEFT SIDE OF ENGINE COMPT, NEAR BATTERY) VEHICLE INTERFACE UNIT (BEHIND RIGHT SIDE OF DASH) WHT WIRE YEL WIRE

ALLISON TRANSMISSION BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (ON LOWER LEFT SIDE OF DASH, BELOW STEERING COLUMN) BODY JUNC- TION BLOCK (UNDER LEFT SIDE OF DASH) BODY JUNCTION BLOCK (UNDER LEFT SIDE OF DASH) BRN WIRE BRN/WHT WIRE CELLULAR PHONE READY WIRING CIGAR FUSE DATA LINK CONNECTOR (DLC) (UNDER LEFT SIDE OF DASH, BELOW STEERING COLUMN) DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE DRIVER INFORMATION CENTER (DIC) (IN LOWER CONSOLE) ELECTRONIC BRAKE CONTROL MODULE (EBCM) (ON LEFT SIDE OF THE INNER FRAME) GRY WIRE HOT AT ALL TIMES HVAC CONTROL MODULE (IN CENTER OF DASH, UNDER RADIO) INSTRUMENT PANEL CLUSTER (IPC) LT BLU WIRE LT GRN WIRE MEMORY MIRROR MODULE MEMORY SEAT MODULE (UNDER DRIVER SEAT) 12 11 10 9 8 7 6 ORG/ WIRE POWERTRAIN CONTROL MODULE (PCM) (LEFT FRONT OF ENGINE COMPT) PPL SPLICE PACK SUSPENSION CONTROL MODULE (REAR OF RIGHT REAR WHEELWELL) TRANSFER CASE SHIFT CONTROL MODULE (LEFT SIDE OF DASH, ABOVE HEADLIGHT SWITCH) UNDER- HOOD JUNCTION BLOCK (AT LEFT SIDE OF ENGINE COMPT) UNDERHOOD JUNCTION BLOCK (AT LEFT SIDE OF ENGINE COMPT, NEAR BATTERY) WHT WIRE YEL WIRE

BLK WIRE BRN WIRE FUSE BLOCK (ON LOWER LEFT SIDE OF DASH) GROUND (BASE) GROUND (UPLEVEL) HOT AT ALL TIMES HOT IN RUN HVAC 1 FUSE HVAC CONTROL MODULE (IN CENTER OF DASH, UNDER RADIO) IGN IND RELAY CTRL PPL REAR WINDOW DEFOGGER GRID REAR WINDOW DEFOGGER RELAY RR DEFOG FUSE SPLICE PACK WHT WIRE

5 20 22 DOOR AJAR SW SIG DOOR SW LO REF SERIAL DATA AJAR SW BASE BATTERY PK LAMP REL HEADLIGHTS CTRL GROUND HORN RLY CTRL SERIAL DATA BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE BRN WIRE CLASS 2 DATA DK BLU WIRE DK GRN WIRE DRIVER DOOR LATCH ASSEMBLY (REAR OF DRIVER'S DOOR) DRIVER DOOR MODULE EXTERIOR LIGHTS SYSTEM HEADLIGHTS SYSTEM FRONT PASSENGER DOOR LATCH ASSEMBLY (REAR OF RIGHT FRONT DOOR) FRONT PASSENGER DOOR MODULE GROUND GRY WIRE GRY/BLK WIRE HORNS SYSTEM HOT AT ALL TIMES I/P FUSE BLOCK (LOWER LEFT SIDE OF DASH) I/P JUNCTION BLOCK (LOWER RIGHT SIDE OF DASH) I/P JUNCTION BLOCK (RIGHT SIDE OF DASH, BEHIND PANEL) I/P RELAY BLOCK (NEAR LEFT KICK PANEL) INSIDE DRIVER DOOR) INSTRUMENT PANEL CLUSTER (IPC) KEY SW LEFT REAR DOOR LATCH ASSEMBLY (CREW CAB) (REAR OR LEFT REAR DOOR) LOGIC LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE ORG/ WIRE PNK/WHT WIRE RF DOOR AJAR SW LF DOOR AJAR SW RIGHT REAR DOOR LATCH ASSEMBLY (CREW CAB) (REAR OR RIGHT REAR DOOR) RR DOOR AJAR SW LR DOOR AJAR SW SECURITY INDICATOR SPLICE PACK TAN WIRE TBC BATT FUSE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) WHT WIRE

BATTERY GROUND LOW REFERENCE SERIAL DATA BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (LOWER LEFT SIDE OF DASH, NEAR STEERING COLUMN) CLASS 2 SERIAL DATA DATA DK GRN WIRE GAS DIESEL GRY WIRE HOT AT ALL TIMES HOT IN RUN, START I/P RELAY BLOCK (NEAR LEFT KICK PANEL) IGN IGN SW SIG IGN 1 VOLTAGE PNK WIRE IGNITION KEY ALARM SWITCH (ON STEERING COLUMN) INSTRUMENT PANEL CLUSTER KEY LT GRN WIRE MAGNET LOCK CYLINDER ORG/ WIRE PASSLOCK SENSOR (ON STEERING COLUMN) PNK WIRE PPL PPL DATA LINK CONNECTOR (UNDER LEFT SIDE OF DASH) RED/WHT WIRE SEC SENS SIG GROUND SECURITY INDICATOR SECURITY SENSOR SPLICE PACK TAMPER SENSOR TBC BATT FUSE TBC IGN 1 FUSE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) YEL WIRE

BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (ON LOWER LEFT SIDE OF DASH, NEAR STEERING COLUMN) DK BLU WIRE DOOR LOCK SW IN DOOR UNLOCK SW IN IGNITION KEY SWITCH DRIVER DOOR LATCH ASSEMBLY DRIVER DOOR LOCK SWITCH DRIVER UNLOCK RELAY FRONT PASSENGER DOOR LATCH ASSEMBLY FRONT PASSENGER DOOR LOCK SWITCH GRN WIRE GROUND GRY WIRE HOT AT ALL TIMES I/P FUSE BLOCK (LOWER LEFT SIDE OF DASH) I/P JUNCTION BLOCK (RIGHT SIDE OF DASH, BEHIND ACCESS PANEL) I/P RELAY BLOCK (NEAR LEFT KICK PANEL) IGNITION KEY ALARM SWITCH (ON STEERING COLUMN) INSTRUMENT PANEL CLUSTER LEFT REAR DOOR LATCH ASSEMBLY LOCK LOCK ACTUATOR LOCK RELAY LOCKS FUSE LT BLU WIRE LT GRN WIRE ORG/ WIRE RIGHT REAR DOOR LATCH ASSEMBLY SERIAL DATA SERIAL DATA BATTERY DOOR UNLOCK CTRL DOOR LOCK CTRL DRIVER DOOR UNLOCK GROUND SPLICE PACK TAN WIRE UNLK UNLOCK RELAY WHT WIRE

B+ PWR WND LOCKOUT LR SIGNAL B+ PWR WND LOCKOUT RR SIGNAL B+ VOLT BCM CLASS 2 SERIAL DATA BLK WIRE BODY CONTROL MODULE (LOWER LEFT SIDE OF DASH, BELOW STEERING COLUMN) BRN WIRE BRN/WHT WIRE CLASS 2 SERIAL DATA CREW CAB DK BLU WIRE DK GRN WIRE DRIVER DOOR MODULE DRIVER WINDOW DRIVER WINDOW MOTOR FRONT PASSENGER DOOR MODULE FRONT PASSENGER WINDOW MOTOR GROUND GRY/BLK WIRE HOT AT ALL TIMES I/P FUSE BLOCK (LOWER LEFT SIDE OF DASH) I/P JUNCTION BLOCK (RIGHT SIDE OF DASH, BEHIND ACCESS PANEL) I/P RELAY BLOCK ILLUMINATION LEFT REAR WINDOW MOTOR LEFT REAR WINDOW SWITCH (CREW CAB ONLY) LOGIC LR WINDOW (CREW CAB) LT BLU WIRE LT DOORS CIRCUIT BREAKER LT GRN WIRE ORG/ WIRE PWR WND LOCKOUT LR SIG PWR WND LOCKOUT RR SIG PWR WND MOTOR LEFT REAR WINDOW LR REAR UP CTRL PWR WND MOTOR LF DOWN CTRL PWR WND MOTOR LF UP CTRL PWR WND MOTOR LR REAR DOWN CTRL PWR WND MOTOR RF DOWN CTRL PWR WND MOTOR RF UP CTRL PWR WND MOTOR RR REAR DOWN CTRL PWR WND MOTOR RR REAR UP CTRL PWR WND SW LR DOWN SIG PWR WND SW LR UP SIG PWR WND SW RR DOWN SIG PWR WND SW RR UP SIG PWR WND SWITCH LR DOWN SIGNAL PWR WND SWITCH LR UP SIGNAL PWR WND SWITCH RR DOWN SIGNAL PWR WND SWITCH RR UP SIGNAL RIGHT REAR WINDOW RIGHT REAR WINDOW MOTOR RIGHT WINDOW SWITCH (CREW CAB ONLY) RR WINDOW (CREW CAB) RT DOORS CIRCUIT BREAKER SPLICE PACK SWITCH POWER TAN WIRE WHT WIRE WINDOW DOWN WINDOW DOWN DN WINDOW LOCKOUT INDICATOR DOWN WINDOW LOCKOUT SWITCH WINDOW PASSENGER WINDOW SWITCH PASSENGER WINDOW UP YEL WIRE

2-HI IND 4 HI 4 LO 4-HI IND 4-LO IND AXLE SW SIG BLK WIRE BLK/WHT WIRE BRAKE CONTROL BRN WIRE BRN/WHT WIRE CLASS II DATA AXLE CTRL AWD IND 4-LO IND 4-HI IND CONTROL MODULE CTRL DATA LINK CONNECTOR (UNDER LEFT SIDE OF DASH) DK GRN WIRE DK GRN/WHT WIRE ENCODER ENCODER LOW GROUND ENCODER SIG EXCEPT SEO FRONT AXLE ACTUATOR FRONT PROPSHAFT SPEED SENSOR FUSE GROUND BATTERY MOTOR CTRL A MOTOR CTRL B GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT IN HOT IN RUN OR START I/P FUSE BLOCK (LOWER LEFT SIDE OF DASH) I/P FUSE BLOCK (LOWER LEFT SIDE OF DASH) SEO IGN FUSE I/P RELAY BLOCK (UNDER LEFT SIDE OF DASH) IGN E FUSE ILLUMINATION INSTRUMENT PANEL CLUSTER LAMP LOCK SOL CTRL 2-HI IND NEUTRAL IND LOGIC LT BLU WIRE LT GRN/BLK WIRE NEUTRAL IND ORG/ WIRE PNK WIRE PPL PPL FT SHAFT LO FT SHAFT HI PPL/WHT WIRE REAR PROPSHAFT SPEED SENSOR RED WIRE RR SHAFT HI RR SHAFT LO RUN WIRE SEO SHIFT MOTOR SPLICE PACK TAN WIRE TAN/BLK WIRE TRANSFER CASE ENCODER MOTOR TRANSFER CASE SHIFT CONTROL MODULE (BEHIND HEADLAMP SWITCH) TRANSFER CASE SHIFT CONTROL SWITCH TREC FUSE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) YEL WIRE

BLK WIRE BLK/WHT WIRE BRN WIRE DATA LINK CONNECTOR (UNDER LEFT SIDE OF DASH) DK GRN WIRE ELECTRONIC BRAKE CONTROL MODULE (ON LEFT SIDE OF INNER FRAME) EXCEPT SEO FRONT AXLE ACTUATOR FUSE GAS (PCM) DIESEL (ECM) GRY WIRE GRY/BLK WIRE HOT IN HOT IN RUN OR START I/P FUSE BLOCK (LOWER LEFT SIDE OF DASH) IGN E FUSE INSTRUMENT PANEL CLUSTER LAMP LOGIC LT BLU WIRE MODULE (DIESEL) (LEFT FRONT OF ENGINE COMPT) PNK WIRE POWERTRAIN CONTROL MODULE (GAS ENGINES) OR ENGINE CONTROL PPL 2 RUN WIRE SEO SEO IGN FUSE SPLICE PACK TRANSFER CASE SHIFT CONTROL SWITCH (ON TOP OF TRANSFER CASE) TRANSMISSION CONTROL MODULE (W/ ALLISON TRANS) (LEFT FRONT OF ENGINE COMPT) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT)