Chevrolet Silverado 1500 (2000-2012) automatic transmission Wiring diagrams

1-2 SHIFT SOLENOID (SS) VALVE 2-3 SHIFT SOLENOID (SS) VALVE 4.3L AUTOMATIC TRANSMISSION AUTOMATIC TRANSMISSION FLUID TEMPERATURE (TFT) SENSOR AUTOMATIC TRANSMISSION SHIFT LEVER BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (LOWER LEFT SIDE OF DASH) BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DK GRN WIRE ENGINE CONTROL MODULE (ECM) (LEFT FRONT OF ENGINE COMPT, NEAR FAN SHROUD) EXCEPT 4.3L GRY WIRE HI SPD GMLAN INPUT SHAFT SPEED SENSOR (ISS) INSTRUMENT PANEL CLUSTER (IPC) LO GM GMLAN LOGIC LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE MIL IND MIL IND. CTRL MIL SIG NCA WIRE ORG/ WIRE ORG/BLK WIRE PARK/NEUTRAL SIG PNK/WHT WIRE PPL PRESSURE CONTROL (PC) SOLENOID VALVE RED WIRE REPLICATED TOS SIG TAN WIRE TAN/BLK WIRE TORQUE CONVERTER CLUTCH (TCC) PULSE WIDTH MODULATION (PWM) SOLENOID VALVE TORQUE CONVERTER CLUTCH (TCC) SOLENOID VALVE TOW/ HAUL IND TOW/HAUL SW SIG TOW/HAUL SWITCH YEL WIRE YEL/BLK WIRE

10 11 DATA BUS + DATA BUS - 14 13 15 LOW REF STP LP SW SIG 5 VOLT REF 20 33 47 36 35 49 37 BATT + 66 67 VSS HI SIG VSS LO SIG ACCELERATOR PEDAL POSITION (APP) SENSOR (ABOVE ACCELERATOR PEDAL) APP SEN 1 SIG LOW REF APP SEN 2 SIG LOW REF PPL AUTOMATIC TRANSMISSION AUTOMATIC TRANSMISSION OUTPUT SHAFT SPEED (OSS) SENSOR BATT + BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (LOWER LEFT SIDE OF DASH) BRAKE PEDAL POSITION (BPP) SENSOR BRN WIRE COMPUTER DATA LINES SYSTEM CONTROL SOLENOID VALVE ASSEMBLY CRUISE CONTROL IND DIMMING SIG CRUISE CONTROL SWITCH SIGNAL CRUISE IND CRUISE SWITCH DIM FUSE 7 DK BLU WIRE DK GRN WIRE ECM BATT FUSE 12 ENGINE CONTROL MODULE (ECM) (LEFT FRONT OF ENGINE COMPT) GRN/WHT WIRE GROUND GROUND DISTRIBUTION SYSTEM GRY WIRE HI SPD GMLAN SER DATA BUS- HOT AT ALL TIMES I/P FUSE BLOCK (LEFT SIDE OF DASH, INFLATABLE RESTRAINT STEERING WHEEL MODULE COIL (BEHIND STEERING WHEEL) INSTRUMENT PANEL CLUSTER (IPC) IPC FUSE 46 LEFT I/P JUNCTION BLOCK (LOWER LEFT SIDE OF DASH) LEFT STEERING WHEEL CONTROL SWITCH ASSEMBLY LOGIC LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE ORG/WHT WIRE OUT SPD SENS (OSS) SIG OUT SPD SENS (OSS) SIG PNK TRANSMISSIONS SYSTEM WIRE PNK WIRE PNK/BLK WIRE POWER DISTRIBUTION SYSTEM PPL PPL/WHT WIRE RED/WHT WIRE RES+ SER DATA SER DATA BUS - SET- SOUND SYSTEMS TAN WIRE TAN/BLK WIRE TP SENS 1 SIG LOW REF TP SENS 2 SIG TAC MOTOR CTRL 2 TAC MOTOR CTRL 1 TRANSMISSION CONTROL MODULE (TCM) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) WHT/BLK WIRE YEL WIRE

10 11 13 14 DATA BUS + DATA BUS - DATA BUS - DATA BUS + 14 13 15 LOW REF STP CP SW SIG 5 VOLT REF 42 26 54 22 58 38 LOW REF BRK APPLY SENS SPLY SUPPLY VOLT 6.0L APP SEN 1 SIG LOW REF APP SEN 2 SIG LOW REF VSS LO SIG VSS HI SIG PPL AUTOMATIC TRANSMISSION BATT + BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (LOWER LEFT SIDE OF DASH) BRAKE PEDAL POSITION (BPP) SENSOR BRN WIRE COMPUTER DATA LINES SYSTEM CONTROL SOLENOID VALVE ASSEMBLY CRUISE CONTROL IND DIMMING SIG CRUISE CONTROL SWITCH SIGNAL CRUISE IND CRUISE SWITCH DIM FUSE 7 DK BLU WIRE DK GRN WIRE ECM BATT FUSE 12 ENGINE CONTROL MODULE (ECM) (LEFT FRONT OF ENGINE COMPT, NEAR FAN SHROUD) EXCEPT 6.0L GRN WIRE GRN/WHT WIRE GROUND GROUND DISTRIBUTION SYSTEM GRY WIRE HI SPD GMLAN SER DATA BUS- HOT AT ALL TIMES I/P FUSE BLOCK (LEFT SIDE OF DASH, INFLATABLE RESTRAINT STEERING WHEEL MODULE COIL (BEHIND STEERING WHEEL) INPUT SHAFT SPEED SENSOR (ISS) INPUT SPEED SENSOR (ISS) SIGNAL INSTRUMENT PANEL CLUSTER (IPC) IPC FUSE 46 ISS/OSS SUPPLY VOLTAGE LEFT I/P JUNCTION BLOCK (LOWER LEFT SIDE OF DASH) LEFT STEERING WHEEL CONTROL SWITCH ASSEMBLY LOGIC LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE OUTPUT SHAFT SPEED SENSOR (OSS) OUTPUT SPEED SENSOR (OSS) SIGNAL PNK PNK WIRE PNK TRANSMISSIONS SYSTEM COLUMN HARNESS) WIRE PNK WIRE PNK/BLK WIRE POWER DISTRIBUTION SYSTEM PPL PPL/WHT WIRE RED WIRE RED/WHT WIRE RES+ SER DATA SET- SOUND SYSTEMS TAN WIRE TAN/BLK WIRE TP SENS 1 SIG LOW REF TP SENS 2 SIG TAC MOTOR CTRL 2 TAC MOTOR CTRL 1 TRANSMISSION CONTROL MODULE (TCM) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) W/ 2 SPEED MANUAL TRANSFER CASE WHT WIRE WHT/BLK WIRE YEL WIRE

10 11 13 14 2500 2501 2501 2500 DATA BUS + DATA BUS - DATA BUS - DATA BUS + ACCELERATOR PEDAL POSITION (APP) SENSOR (ABOVE ACCELERATOR PEDAL) APP SEN 1 SIG LOW REF APP SEN 2 SIG LOW REF VSS LO SIG VSS HI SIG PPL AUTOMATIC TRANSMISSION BATT + BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (LOWER LEFT SIDE OF DASH) BRN WIRE COMPUTER DATA LINES SYSTEM CONTROL SOLENOID VALVE ASSEMBLY CRUISE CONTROL IND DIMMING SIG CRUISE CONTROL SWITCH SIGNAL CRUISE IND CRUISE SWITCH DK BLU WIRE DK GRN WIRE ECM BATT FUSE 12 ENGINE CONTROL MODULE (ECM) (LEFT FRONT OF ENGINE COMPT, NEAR FAN SHROUD) GRN WIRE GRN/WHT WIRE GROUND GRY WIRE HI SPD GMLAN SER DATA BUS- HOT AT ALL TIMES HOT AT ALL TIMES I/P FUSE BLOCK (LEFT SIDE OF DASH) DIM FUSE 7 HOT W/ RUN/CRNK RELAY ENERGIZED INFLATABLE PNK RESTRAINT STEERING WHEEL MODULE COIL (BEHIND STEERING WHEEL) WIRE INPUT SHAFT SPEED SENSOR (ISS) INPUT SPEED SENSOR (ISS) SIGNAL INSTRUMENT PANEL CLUSTER (IPC) IPC FUSE 46 ISS/OSS SUPPLY VOLTAGE LEFT I/P JUNCTION BLOCK (LOWER LEFT SIDE OF DASH) LEFT STEERING WHEEL CONTROL SWITCH ASSEMBLY LOGIC LT BLU WIRE LT BLU/WHT WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE MISC-IGN FUSE 43 ORG/WHT WIRE OUTPUT SHAFT SPEED SENSOR (OSS) OUTPUT SPEED SENSOR (OSS) SIGNAL PNK STEERING WHEEL CNTRL SUP VOLT WIRE PNK WIRE PPL PPL BRAKE SW SIG PPL/WHT WIRE RED WIRE RED/WHT WIRE RES+ SER DATA SET- SOUND SYSTEMS STOP LAMP SWITCH (TOP OF BRAKE PEDAL ASSEMBLY) TAN WIRE TAN/BLK WIRE TP SENS 1 SIG LOW REF TP SENS 2 SIG TAC MOTOR CTRL 2 TAC MOTOR CTRL 1 TRANSMISSION CONTROL MODULE (TCM) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) WHT/BLK WIRE YEL WIRE

1-2 SHIFT SOLENOID (SS) VALVE 2-3 SHIFT SOLENOID (SS) VALVE 4.3L AUTOMATIC TRANSMISSION AUTOMATIC TRANSMISSION FLUID TEMPERATURE (TFT) SENSOR AUTOMATIC TRANSMISSION SHIFT LEVER BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (LOWER LEFT SIDE OF DASH) BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DK GRN WIRE ENGINE CONTROL MODULE (ECM) (LEFT FRONT OF ENGINE COMPT, NEAR FAN SHROUD) EXCEPT 4.3L GRY WIRE HI SPD GMLAN INPUT SPEED SENSOR (ISS) INSTRUMENT PANEL CLUSTER (IPC) LO GM GMLAN LOGIC LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE MIL IND MIL IND. CTRL MIL SIG NCA WIRE ORG/ WIRE ORG/BLK WIRE PNK WIRE PPL PRESSURE CONTROL (PC) SOLENOID VALVE RED WIRE REPLICATED TOS SIGN TAN WIRE TAN/BLK WIRE TORQUE CONVERTER CLUTCH (TCC) PULSE WIDTH MODULATION (PWM) SOLENOID VALVE TORQUE CONVERTER CLUTCH (TCC) SOLENOID VALVE TOW/ HAUL IND TOW/ HAUL SWITCH TOW/HAUL SW SIG YEL WIRE YEL/BLK WIRE

13 14 39 DATA BUS (-) DATA BUS (+) 2501 2500 1786 COMPUTER DATA LINES SYSTEM 51 72 GMLAN DATA BUS (-) GMLAN DATA BUS (+) 66 67 REPLICATED TOS SIG VSS SIG AUTOMATIC TRANSMISSION AUTOMATIC TRANSMISSION FLUID TEMPERATURE (TFT) SENSOR AUTOMATIC TRANSMISSION FLUID TEMPERATURE (TFT) SENSOR SIGNAL BATT + GND BRAKE PEDAL SIG BLK/WHT WIRE COMPUTER DATA LINES SYSTEM CONTROL SOLENOID VALUE ASSEMBLY DK BLU WIRE DK GRN WIRE DRIVE MOTOR GENERATOR POWER INVERTER MODULE DRIVER INFORMATION CENTER (DIC) DISPLAY ENGINE CONTROL MODULE (ECM) (LEFT FRONT OF ENGINE COMPT, NEAR FAN SHROUD) FUSE 19 GMLAN HOT AT ALL TIMES HOT W/ RUN/CRNK RELAY ENERGIZED IGN INSTRUMENT CLUSTER PANEL (IPC) INTERNAL MODE SW (IMS) GND LEFT I/P JUNCTION BLOCK LOGIC LOW REFERENCE LT BLU/WHT WIRE LT GRN/BLK WIRE MISC-IGN FUSE 43 ORG/BLK WIRE PC SOLENOID 1 CONTROL PC SOLENOID 2 CONTROL PC SOLENOID 3 CONTROL PC SOLENOID 4 CONTROL PC SOLENOID 5 CONTROL PC SOLENOID 6 CONTROL PNK PNK PNK PNK WIRE PNK WIRE PNK/WHT WIRE POWER DISTRIBUTION SYSTEM PPL/WHT WIRE PRESSURE CONTROL (PC) SOLENOID VALVE 1 PRESSURE CONTROL (PC) SOLENOID VALVE 2 PRESSURE CONTROL (PC) SOLENOID VALVE 3 PRESSURE CONTROL (PC) SOLENOID VALVE 4 PRESSURE CONTROL (PC) SOLENOID VALVE 5 PRESSURE CONTROL (PC) SOLENOID VALVE 6 RED/WHT WIRE REPLICATED TOS SIGNAL SERIAL DATA BUS (+) SERIAL DATA BUS (-) SHIFT SOLENOID (SS) 1 CONTROL SHIFT SOLENOID (SS) 2 CONTROL SHIFT SOLENOID (SS) VALVE 1 SHIFT SOLENOID (SS) VALVE 2 STOP LAMP SWITCH (TOP OF BRAKE PEDAL ASSEMBLY) TAN WIRE TAN/BLK WIRE TCM- BATT FUSE 14 TO AUTOMATIC TRANSMISSION INTERNAL MODE SWITCH (IMS) (DIAGRAM 2 OF 2) TRANSMISSION CONTROL MODULE (TCM) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) VEHICLE SPEED SENSOR (VSS) (ON TRANSFER CASE TAILSHAFT HOUSING) W/0 ACTIVE TWO SPEED PUSH BUTTON CONTROL TRANSFER CASE WAKE UP SERIAL DATA SERIAL DATA BUS (+) SERIAL DATA BUS (-)

A/T MANUAL SHIFT SWITCH AUTOMATIC TRANSMISSION AUTOMATIC TRANSMISSION FLUID PRESSURE (TFP) MANUAL VALVE POSITION SWITCH AUTOMATIC TRANSMISSION INTERNAL MODE SWITCH (IMS) AUTOMATIC TRANSMISSION SHIFT LEVER BLK WIRE BODY CONTROL MODULE (LOWER LEFT SIDE OF DASH) BRN WIRE COMPUTER DATA LINES SYSTEM CRUISE CONTROL SYSTEM FROM AUTOMATIC TRANSMISSION (DIAGRAM 1 OF 2) FTP SWITCH 1 VOLTAGE FTP SWITCH 3 VOLTAGE FTP SWITCH 4 VOLTAGE FTP SWITCH 5 VOLTAGE GMLAN GMLAN SERIAL SERIAL DATA DATA BUS - BUS + GMLAN SERIAL DATA BUS + GRN WIRE GRY WIRE ISS/OSS SUPPLY VOLTAGE NCA WIRE ORG/WHT WIRE OUTPUT SHAFT SPEED SENSOR (OSS) OUTPUT SPEED SENSOR (OSS) SIGNAL PNK WIRE PPL PPL/WHT WIRE RED WIRE TAN WIRE TAN/BLK WIRE TAP UP/ TAP DOWN SW SIG TRANSMISSION CONTROL MODULE (TCM) CONTROL SOLENOID VALVE ASSEMBLY TRANSMISSION RANGE SWITCH SIG A TRANSMISSION RANGE SWITCH SIG B TRANSMISSION RANGE SWITCH SIG C TRANSMISSION RANGE SWITCH SIG P WHT WIRE YEL WIRE

4 SPEED 6 SPEED A/T A/T 6.0L (VIN G) AUTOMATIC A/C AUTOMATIC TRANSMISSION AUXILIARY BATTERY RELAY (IF EQUIPPED) (REAR OF ENGINE COMPT) AUXILIARY RIGHT I/P J/B (IN RIGHT END OF DASH) BATTERY BLK WIRE BODY BUILDER EMERGENCY LAMP CYLINDER HEAD) MOBILE RADIO PROVISION (BLUNT CUT) DK GRN WIRE ECM- TCM-BATT BATT FUSE 14 FUSE 12 EMERGENCY LAMP PROVISIONS EMERGENCY VEHICLE PROVISION (BLUNT CUT) EVAPORATIVE HVAC EMISSION (EVAP) CONTROL CANISTER VENT MODULE SOLENOID VALVE EXCEPT 6.0L (VIN J) FUSE FUSE FUSE FUSE SUPPLY) (BEHIND RIGHT SIDE OF DASH) FUSIBLE LINK 1 (14 GA- FUSIBLE LINK 2 (14 GA- FUSIBLE LINK 3 GENERATOR HDLP WASH FUSE 22 HEATED SEAT CONTROL MODULE (IF EQUIPPED) HVAC BATT FUSE 39 I/P 1 ACCESSORY POWER OUTLET DATA LINK CONNECTOR (DLC) INSTRUMENT BODY CONTROL PANEL MODULE CLUSTER (IPC) (BCM) IPC FUSE 46 ITBC FUSE 6 TREC FUSE 67 FUSE 37 LEFT BATTERY LEFT I/P J/B (LOWER LEFT SIDE OF DASH) LT BLU WIRE LT GRN WIRE LTR STUD 2 FUSE 53 FUSE 63 MANUAL A/C MOBILE RADIO FUSE BLOCK MODULE ORG/ WIRE POWER SUPPLY POWER SUPPLY, AUXILIARY BATTERY RED WIRE RED/ WHT WIRE RED/BLK WIRE RED/WHT WIRE RELAY RELAY A RELAY B RIGHT BATTERY RUN WIRE STARTER MOTOR TO AUXILIARY FUSE BLOCK (DIAGRAM 7 OF 7) TO LEFT I/P J/B (DIAGRAM 4 OF 7) TO STUD 1 FUSE 68 (DIAGRAM 2 OF 7) TO UNDERHOOD FUSE BLOCK (DIAGRAM 6 OF 7) TO UNDERHOOD FUSE BLOCK TO ROOF BEACON (DIAGRAM SWITCH (DIAGRAM 3 OF 7) 2 OF 7) TRAILER BRAKE CONTROL RELAY (IF EQUIPPED) TRAILER PROVISION (BLUNT CUT) TRANSMISSION ENGINE CONTROL CONTROL MODULE MODULE (TCM) (ECM) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) UNDERHOOD FUSE HOLDER (ON POSITIVE BATTERY TERMINAL) W/ ACTIVE 2 SPEED W/ AUXILIARY BATTERY W/ AUXILIARY BATTERY TO UNDERHOOD FUSE BLOCK (DIAGRAM 2 OF 7) W/ ELECTRONIC 2 SPEED, ACTIVE 2 SPEED W/ EMERGENCY VEHICLE ROOF LAMP RELAY W/ WRECKER W/ WRECKER RELAY (4.3L) (TOP LEFT REAR OF ENGINE) WHT RED/ WIRE WHT WIRE WRECKER RELAY WSW/HTR FUSE 66 YEL WIRE

2501 2500 904 904 904 904 968 2139 COMPUTER DATA LINES SYSTEM 33 53 PT LAN- PT LAN+ 988 983 984 983 PNK WIRE AUTOMATIC TRANSMISSION AUTOMATIC TRANSMISSION INTERNAL MODE SWITCH (IMS) BLK WIRE BLU WIRE BRN WIRE CIRCUIT CIRCUIT 1 CIRCUIT 2 COMPUTER DATA LINES SYSTEM CONT CTRL PUMP CTRL B+ B+ CONTROL SOLENOID VALVE ASSEMBLY CUT) (SHIELD BLUNT DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DRAIN WIRE DRIVE MOTOR GENERATOR POWER INVERTER MODULE (RIGHT REAR OF ENGINE COMPT) EARLY PRODUCTION LATE PRODUCTION ENGINE CONTROL MODULE (ECM) ENGINE CONTROLS CIRCUIT ENGINE CONTROLS CIRCUIT 6272 7654 EXCITATION EXCITATION CIRCUIT FLUID PUMP GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT AT ALL TIMES AUXILIARY PIM 2 FUSE FUSE 9 BLOCK (LEFT SIDE OF ENGINE COMPT) IGN INTER MODE GND LOW REFERENCE TEMP SENS A LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE MEGA FUSE NCA WIRE ORG/ WIRE ORG/BLK WIRE PHASE A PHASE B PHASE C PIM 1 FUSE 8 PNK WIRE PNK/WHT WIRE PPL PPL INTER MODE S PT LAN- PT LAN+ PUMP CTRL RED WIRE RED/WHT WIRE RESOL MTR A+ RESOL MTR A+ RESOL MTR B- RESOL MTR B+ TEMP SENS A SER DATA BUS- SER DATA BUS+ TAN WIRE TAN/BLK WIRE TEMP SENS B TRANS PUMP FUSE TRANSMISSION CONTROL MODULE (TCM) WAKE UP SIG IGN VOLT WHT WIRE WHT/BLK WIRE YEL WIRE

2501 2500 904 904 904 904 968 2139 COMPUTER DATA LINES SYSTEM 6106 6105 COMPUTER DATA LINES SYSTEM AUTOMATIC TRANSMISSION AUTOMATIC TRANSMISSION INTERNAL MODE SWITCH (IMS) AUXILIARY FLUID PUMP CONTROL MODULE (LEFT SIDE OF ENGINE COMPT) BLK WIRE BLK/WHT WIRE BLU WIRE BRN WIRE CIRCUIT CIRCUIT 1 CIRCUIT 2 COMPUTER DATA LINES SYSTEM CONT CTRL PUMP CTRL B+ B+ CUT) (SHIELD BLUNT DK BLU WIRE DK GRN WIRE DRAIN WIRE DRIVE MOTOR GENERATOR POWER INVERTER MODULE (RIGHT REAR OF ENGINE COMPT) ENGINE CONTROLS CIRCUIT ENGINE CONTROLS CIRCUIT 6272 7654 EXCITATION EXCITATION CIRCUIT FLUID PUMP GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT AT ALL TIMES AUXILIARY PIM 2 FUSE FUSE 9 BLOCK (LEFT SIDE OF ENGINE COMPT) IGN INTER MODE GND LOW REFERENCE TEMP SENS A LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE MEGA FUSE NCA WIRE ORG/ WIRE ORG/BLK WIRE PHASE A PHASE B PHASE C PIM 1 FUSE 8 PNK/WHT WIRE PPL PPL INTER MODE S PT LAN- PT LAN+ PUMP CTRL RED WIRE RED/WHT WIRE RESOL MTR A+ RESOL MTR A+ RESOL MTR B- RESOL MTR B+ TEMP SENS A SER DATA BUS- SER DATA BUS+ TAN WIRE TAN/BLK WIRE TEMP SENS B TRANS PUMP FUSE TRANSMISSIONS SYSTEM WAKE UP SIG IGN VOLT WHT/BLK WIRE YEL WIRE