GMC Sierra 2500 HD (2002-2012) automatic transmission Wiring diagrams

AUTOMATIC TRANSMISSION AUTOMATIC TRANSMISSION FLUID TEMPERATURE (TFT) SENSOR AUTOMATIC TRANSMISSION FLUID TEMPERATURE (TFT) SENSOR SIGNAL AUX HVAC- IGN FUSE 45 BATT + GND BRAKE PEDAL SIG BLK/WHT WIRE COMPUTER DATA LINES SYSTEM CONTROL SOLENOID VALVE ASSEMBLY DK BLU WIRE DRIVER INFORMATION CENTER (DIC) DISPLAY ENGINE CONTROL MODULE (ECM) (LEFT FRONT OF ENGINE COMPT, NEAR FAN SHROUD) FUSE 19 GROUND DISTRIBUTION SYSTEM HOT AT ALL TIMES HOT W/ RUN/CRNK RELAY ENERGIZED IGN INSTRUMENT CLUSTER PANEL (IPC) 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 PNK IGN WIRE PNK PNK ANTI-LOCK BRAKES SYSTEM WIRE PNK PNK PNK PNK WIRE PNK 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 RED/WHT WIRE REPLICATED TOS SIGNAL 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) TORQUE CONVERTER CLUTCH (TCC) PRESSURE CONTROL (PC) SOLENOID VALVE TORQUE CONVERTER CLUTCH PRESSURE CONTROL SOLENOID CONTROL TOS SIG TOW/ HAUL IND TRANSMISSION CONTROL MODULE (TCM) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) VEHICLE SPEED SENSOR (VSS) (ON TRANSFER CASE TAILSHAFT HOUSING) VSS HIGH SIG VSS LOW SIG

A/T MANUAL SHIFT SWITCH AUTOMATIC TRANSMISSION AUTOMATIC TRANSMISSION FLUID PRESSURE (TFP) MANUAL VALVE POSITION SWITCH AUTOMATIC TRANSMISSION INPUT SHAFT SPEED (ISS) AUTOMATIC TRANSMISSION INTERNAL MODE SWITCH (IMS) AUTOMATIC TRANSMISSION OUTPUT SHAFT SPEED (ISS) AUTOMATIC TRANSMISSION SHIFT LEVER BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (LOWER LEFT SIDE OF DASH) COMPUTER DATA LINES SYSTEM CRUISE CONTROL SYSTEM DK BLU WIRE 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 INPUT SPEED SENSOR (ISS) SIGNAL ISS/OSS SUPPLY VOLTAGE LT BLU WIRE NCA WIRE OUTPUT SPEED SENSOR (OSS) SIGNAL PNK WIRE PPL RED WIRE REF SENSOR TAN WIRE TAN/BLK WIRE TAP TOW/ UP/ HAUL TAP SW DOWN SIG SW SIG TOW/ HAUL SWITCH 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 VOLT W/ ELECTRONIC STEERING CONTROL W/O 2 SPEED TRANSFER CASE WHT 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

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

4.8L 4.3L 5.3L, 6.2L 6.0L 6 SPEED A/T 6.0L 4.3L 4.8L, 5.3L, 6.2L 6.6L ALLISON TRANSMISSION 6 SPEED A/T AUTOMATIC TRANSMISSION AUTOMATIC TRANSMISSION FLUID PRESSURE (TFP) MANUAL VALVE POSITION SWITCH AUTOMATIC TRANSMISSION INTERNAL MODE SWITCH (IMS) BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (LOWER LEFT SIDE OF DASH) COMPUTER DATA LINES SYSTEM CONTROL SOLENOID VALVE ASSEMBLY DATA BUS - ENGINE CONTROL MODULE (ECM) (LEFT FRONT OF ENGINE COMPT) GRY WIRE HEAD IGN 3 VOLT IGNITION SWITCH LOCK LOW REF MEGA FUSE ORG/ WIRE ORG/BLK WIRE PARK/ NEUTRAL POSITION (PNP) SWITCH (ON LEFT REAR SIDE OF TRANSMISSION) PARK/NEUTRAL SIGNAL PNK/BLK WIRE POWER DISTRIBUTION SYSTEM POWER SUPPLY, AUXILIARY BATTERY PPL RED WIRE RED/BLK WIRE RIGHT BATTERY RUN WIRE SERIAL DATA STARTER MOTOR STRT RLY CTRL STRTR FUSE 62 (EXCEPT 6.6L) FUSE 57 (6.6L) TAN WIRE TAN/BLK WIRE TRANSMISSION CONTROL MODULE (TCM) TRANSMISSION CONTROL MODULE (TCM) (LEFT FRONT OF ENGINE COMPT, NEAR FAN SHROUD) TRANSMISSION PARK/NEUTRAL UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) STRTR RELAY WHT WIRE YEL WIRE YEL/BLK WIRE

4 SPEED 6 SPEED A/T A/T 6.0L (VIN K), 6.0L (VIN G) 7 OF 7) AUTOMATIC A/C AUTOMATIC TRANSMISSION AUXILIARY BATTERY RELAY (IF EQUIPPED) (REAR OF ENGINE COMPT) AUXILIARY BATTERY RIGHT I/P J/B (IN RIGHT END OF DASH) RELAY 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 A RELAY B RIGHT BATTERY RUN WIRE STARTER MOTOR TO AUXILIARY FUSE BLOCK (DIAGRAM 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 (DIAGRAM BEACON SWITCH 3 OF 7) (DIAGRAM 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/ DUAL BATTERY 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

2 SPEED MANUAL SHIFT CONTROL TRANSFER CASE 4.3L 6 SPEED A/T A/C CMPRSR RELAY AUTOMATIC TRANSMISSION AUX HVAC-IGN FUSE 48 BCK/UP LAMP PCB RELAY BLK WIRE BRN WIRE DRL PCB RELAY ECM-IGN FUSE 56 ELECTRONIC ENGINE CONTROL MODULE (ECM) FOG LAMP RELAY FROM BODY CONTROL MODULE (DIAGRAM 4 OF 6) FROM DLIS FUSE 35 (DIAGRAM 4 OF 6) FRONT DRIVE AXLE ACTUATOR FRT WASH PCB RELAY FUEL SYSTEM CONTROL MODULE (FSCM) HDLP LO/HID RELAY HEATED STEERING FUSE HI BEAM PCB RELAY HORN PCB RELAY HVAC-IGN FUSE 55 INFLATABLE RESTRAINT STEERING WHEEL MODULE COIL L/GATE PCB RELAY LEFT AIR TEMPERATURE ACTUATOR (AUTOMATIC A/C) LEFT I/P J/B (LOWER LEFT SIDE OF DASH) (NOT USED) MISC ING FUSE 43 MODE ACTUATOR NCA WIRE PARK LAMP RELAY PNK PNK WIRE PNK WIRE POWER TAKE OFF (IF EQUIPPED) (BLUNT CUT) REAR DEFOG RELAY RECIRCULATION ACTUATOR RED WIRE RIGHT I/P J/B (IN RIGHT END OF DASH) RUN/ CRNK RELAY SECONDARY FUEL PUMP RELAY (6.0L (VIN K) W/O AUXILIARY FUEL TANK) SEO/ALC AIR BAG FUSE 54 IGN FUSE 40 STOP TRAILER LAMP BRAKE SWITCH CONTROL MODULE (IF EQUIPPED) STRTR RELAY TO FAN 1 FUSE 57 (DIAGRAM WIPER CONTROL 6 OF 6) PCB RELAY FRT WPR FUSE 36 TRANS IGN 1 FUSE 19 TRANSMISSION CONTROL MODULE (TCM) TRLR LT STOP/TURN PCB RELAY TRLR RT STOP/TURN PCB RELAY UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) W/ AUTO W/O 4.3L, 5.3L (VIN O), 6.0L (VIN K), 5.3L (VIN 3) W/O W/ STEERING STEERING WHEEL WHEEL HEATER HEATER WIPER REAR FUEL CHMSL SPEED WASH PMP PCB PCB PCB RELAY RELAY RELAY RELAY YEL WIRE

2 MODE HYBRID 6 SPEED A/T 4.3L EXCEPT 4.3L 6.6L ALLISON TRANSMISSION 6 SPEED A/T AUTOMATIC TRANSMISSION AUTOMATIC TRANSMISSION FLUID PRESSURE (TFP) MANUAL VALVE POSITION SWITCH AUTOMATIC TRANSMISSION INTERNAL MODE SWITCH (IMS) BLK WIRE BODY CONTROL MODULE (BCM) (LOWER LEFT SIDE OF DASH) COMPUTER DATA LINES SYSTEM CONTROL SOLENOID VALVE ASSEMBLY DATA BUS - ENGINE CONTROL MODULE (ECM) (LEFT FRONT OF ENGINE COMPT) HEAD IGN IGNITION SWITCH LOCK MEGA FUSE ORG/ WIRE ORG/BLK WIRE PARK/ NEUTRAL POSITION (PNP) SWITCH (ON LEFT REAR SIDE OF TRANSMISSION) PARK/NEUTRAL SIGNAL PNK/BLK WIRE POWER DISTRIBUTION SYSTEM POWER SUPPLY PPL RED WIRE RED/BLK WIRE RIGHT BATTERY RUN WIRE STARTER MOTOR STRT RLY CTRL STRTR FUSE 62 (EXCEPT 6.6L) FUSE 57 (6.6L) TAN WIRE TAN/BLK WIRE TRANSMISSION CONTROL MODULE (TCM) TRANSMISSION CONTROL MODULE (TCM) (LEFT FRONT OF ENGINE COMPT, NEAR FAN SHROUD) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) STRTR RELAY WHT WIRE YEL WIRE YEL/BLK WIRE

451 1840 323 GND BATT + ACTUATOR SPLY VOLT 771 1530 RANGE SW SIG A MAIN PRESS SOL CTRL AUTOMATIC TRANSMISSION AUTOMATIC TRANSMISSION FLUID PRESSURE (TFP) MANUAL VALVE POSITION SWITCH AUTOMATIC TRANSMISSION INTERNAL MODE SWITCH (IMS) AUX HVAC- IGN FUSE 45 BLK WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM GMLAN DATA BUS (+) DK BLU WIRE EXTERIOR LIGHTS SYSTEM PNK PNK WIRE FUSE 13 GROUND DISTRIBUTION SYSTEM GRY WIRE HOT AT ALL TIMES UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) HOT W/ RUN/CRNK RELAY ENERGIZED IGN IGN 1 VOLT INSTRUMENT PANEL CLUSTER (IPC) LOGIC LT BLU WIRE LT BLU/ WHT WIRE LT BLU/WHT WIRE LT GRN/BLK WIRE MIL IND MISC IGN FUSE 40 ORG/ WIRE ORG/BLK WIRE P/N PNK PNK PNK PNK WIRE PNK WIRE PNK/ WHT WIRE PNK/BLK WIRE PNK/WHT WIRE POWER PPL/WHT WIRE RED/WHT WIRE STOP LAMP SWITCH (TOP OF BRAKE PEDAL ASSEMBLY) SYSTEM DISTRIBUTION TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TCC BRAKE SIG TCM-BATT FUSE 7 TFT SENSOR TOW/ HAUL IND TRANSMISSION CONTROL MODULE (LEFT FRONT OF ENGINE COMPT, NEAR FAN SHROUD) VSS HI SIG WHT LT BLU/ WIRE WHT PNK/ WIRE WHT WIRE YEL WIRE YEL/BLK WIRE

2 MODE HYBRID 6 SPEED A/T 4.3L EXCEPT 4.3L 6.6L ALLISON TRANSMISSION 6 SPEED A/T AUTOMATIC TRANSMISSION AUTOMATIC TRANSMISSION FLUID PRESSURE (TFP) MANUAL VALVE POSITION SWITCH AUTOMATIC TRANSMISSION INTERNAL MODE SWITCH (IMS) BLK WIRE BODY CONTROL MODULE (BCM) (LOWER LEFT SIDE OF DASH) COMPUTER DATA LINES SYSTEM CONTROL SOLENOID VALVE ASSEMBLY DATA BUS - ENGINE CONTROL MODULE (ECM) (LEFT FRONT OF ENGINE COMPT) HEAD IGN IGNITION SWITCH LOCK MEGA FUSE ORG/ WIRE ORG/BLK WIRE PARK/ NEUTRAL POSITION (PNP) SWITCH (ON LEFT REAR SIDE OF TRANSMISSION) PARK/NEUTRAL SIGNAL PNK/BLK WIRE POWER DISTRIBUTION SYSTEM POWER SUPPLY PPL RED WIRE RED/BLK WIRE RIGHT BATTERY RUN WIRE STARTER MOTOR STRT RLY CTRL STRTR FUSE 62 (EXCEPT 6.6L) FUSE 57 (6.6L) TAN WIRE TAN/BLK WIRE TRANSMISSION CONTROL MODULE (TCM) TRANSMISSION CONTROL MODULE (TCM) (LEFT FRONT OF ENGINE COMPT, NEAR FAN SHROUD) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) STRTR RELAY WHT WIRE YEL WIRE YEL/BLK WIRE