GMC Sierra Classic 3500 (2007-2007) red Wiring diagrams

1 2 6 8 16 19 20 21 40 42 46 47 48 51 62 63 GND TCC PWM PC SOL HI PC SOL LO 1-2 SHIFT SOLENOID 2-3 SHIFT SOLENOID 3-2 SHIFT SOLENOID A/T FLUID PRESSURE (FTP) MANUAL VALVE POSITION SWITCH AUTOMATIC TRANSMISSION BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (LOWER LEFT SIDE OF DASH) BRK FUSE BRN WIRE BRN/WHT WIRE CRUISE CONTROL SYSTEM DK BLU WIRE DK GRN WIRE ENGINE COOLANT TEMPERATURE SENSOR (REAR SIDE 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) IGN 0 FUSE INSTRUMENT PANEL CLUSTER (IPC) IPC/DIC FUSE LOGIG LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE MALFUNCTION INDICATOR LAMP N/P OF TRANSMISSION) ORG/ WIRE PARK/NEUTRAL POSITION SWITCH (LEFT SIDE OF TRANSMISSION) PCM B FUSE PNK PNK WIRE PNK WIRE POWER DISTRIBUTION SYSTEM POWERTRAIN CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) PPL PPL DATA LINK CONNECTOR (UNDER LEFT SIDE OF DASH) PPL/WHT WIRE PRESS CTRL SOLENOID RED WIRE RED/BLK WIRE REV RUN WIRE SEO SPLICE PACK STOPLIGHT SWITCH (TOP OF BRAKE PEDAL BRACKET) TAN WIRE TAN/BLK WIRE TCC PWM SOLENOID TCC SOLENOID TOW/ HAUL IND TOW/HAUL SWITCH TRANSFER CASE CIRCUIT 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

2-HI IND 4 HI 4 LO 4-HI IND 4-LO IND AXLE SW SIG BLK WIRE BLK/WHT WIRE 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 FRONT AXLE ACTUATOR (ON FRONT AXLE) FRONT PROPSHAFT SPEED SENSOR (ON LEFT FRONT SIDE OF TRANSFER CASE) 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 (ON TRANSFER CASE EXTENSION HOUSING) BRAKE CONTROL RED WIRE RR SHAFT HI RR SHAFT LO RUN WIRE SHIFT MOTOR SPLICE PACK TAN WIRE TAN/BLK WIRE TRANSFER CASE ENCODER MOTOR (LEFT SIDE OF TRANSFER CASE) 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

1 2 6 8 16 19 20 21 40 42 46 47 48 51 62 63 GND TCC PWM PC SOL HI PC SOL LO 1-2 SHIFT SOLENOID 2-3 SHIFT SOLENOID 3-2 SHIFT SOLENOID 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) BRK FUSE BRN WIRE BRN/WHT WIRE DATA LINK CONNECTOR (UNDER LEFT SIDE OF DASH, BELOW STEERING COLUMN) DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE ENGINE COOLANT TEMPERATURE SENSOR (FRONT SIDE OF LEFT CYLINDER HEAD) 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) IGN 0 FUSE 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 PNK WIRE PNK WIRE POWER DISTRIBUTION SYSTEM POWERTRAIN CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) PPL PPL/WHT WIRE PRESS CTRL SOLENOID RED WIRE RED/BLK WIRE REV RUN WIRE SPLICE PACK STOPLIGHT SWITCH (TOP OF BRAKE PEDAL BRACKET) TAN WIRE TAN/BLK WIRE TCC PWM SOLENOID TCC SOLENOID TOW/HAUL SWITCH TRANSFER CASE CIRCUIT 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

2-HI IND 4 HI 4 LO 4-HI IND 4-LO IND AXLE SW SIG BLK WIRE BLK/WHT WIRE 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 FRONT AXLE ACTUATOR (ON FRONT AXLE) FRONT PROPSHAFT SPEED SENSOR (ON LEFT FRONT SIDE OF TRANSFER CASE) 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 (ON TRANSFER CASE EXTENSION HOUSING) BRAKE CONTROL RED WIRE RR SHAFT HI RR SHAFT LO RUN WIRE SHIFT MOTOR SPLICE PACK TAN WIRE TAN/BLK WIRE TRANSFER CASE ENCODER MOTOR (LEFT SIDE OF TRANSFER CASE) 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

1 2 6 8 16 19 20 21 40 42 46 47 48 51 62 63 GND TCC PWM PC SOL HI PC SOL LO 1-2 SHIFT SOLENOID 2-3 SHIFT SOLENOID 3-2 SHIFT SOLENOID 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) BRK FUSE BRN WIRE BRN/WHT WIRE DATA LINK CONNECTOR (UNDER LEFT SIDE OF DASH, BELOW STEERING COLUMN) DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE ENGINE COOLANT TEMPERATURE SENSOR (FRONT SIDE OF LEFT CYLINDER HEAD) 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) IGN 0 FUSE 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 PNK WIRE PNK WIRE POWER DISTRIBUTION SYSTEM POWERTRAIN CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) PPL PPL/WHT WIRE PRESS CTRL SOLENOID RED WIRE RED/BLK WIRE REV RUN WIRE SPLICE PACK STOPLIGHT SWITCH (TOP OF BRAKE PEDAL BRACKET) TAN WIRE TAN/BLK WIRE TCC PWM SOLENOID TCC SOLENOID TOW/HAUL SWITCH TRANSFER CASE CIRCUIT 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

AUXILIARY BATTERY RELAY (RIGHT REAR OF ENG COMPT) BATTERY BATTERY NOT CHARGING BLK WIRE BLK/WHT WIRE BRN WIRE CHARGE INDICATOR CONTROL CLASS 2 SERIAL DATA COMPUTER DATA LINES DK GRN WIRE DRIVER INFO CENTER DUAL GENERATORS ENGINE CONTROL MODULE (ECM) (ON LEFT FRONT OF ENGINE COMPARTMENT) ENGINE CONTROLS SYSTEM FUSE BLOCK MOBILE RADIO (UPFITTER OPTION) FUSIBLE LINK 1 (8 GA- FUSIBLE LINK 2 (8 GA- FUSIBLE LINK 4 (14 GA- GRAY) FUSIBLE LINK 5 (10 GA- FUSIBLE LINK 6 (10 GA- GENERATOR 2 GENERATOR FIELD DUTY CYCLE SIGNAL GROUND GRY WIRE HOT IN RUN, START I/P RELAY BLOCK (NEAR LEFT KICK PANEL) IGN 1 VOLT IGN E FUSE INSTRUMENT PANEL CLUSTER JUNCTION BLOCK - BATTERY CABLE (AT LEFT SIDE OF ENG COMPT, NEAR BATTERY) LEFT BATTERY LEFT GENERATOR LOGIC MEGA FUSE PNK WIRE POWER DISTRIBUTION SYSTEM RED WIRE RIGHT BATTERY RIGHT BATTERY (W/AUX BATTERY) RIGHT GENERATOR SEO IGN FUSE SERIAL DATA CLASS 2 STARTER UNDERHOOD FUSE BLOCK (AT LEFT SIDE OF ENG COMPT) VOLTS W/ SEO W/AUX BATTERY W/DUAL BATTERIES W/O SEO WRECKER OPTION

AUXILIARY BATTERY RELAY (RIGHT REAR OF ENG COMPT) BATTERY BATTERY NOT CHARGING BLK WIRE BLK/WHT WIRE BRN WIRE CHARGE INDICATOR CONTROL CLASS 2 SERIAL DATA COMPUTER DATA LINES DK GRN WIRE DRIVER INFO CENTER DUAL GENERATORS ENGINE CONTROL MODULE (ECM) (ON LEFT FRONT OF ENGINE COMPARTMENT) ENGINE CONTROLS SYSTEM FUSE BLOCK MOBILE RADIO (UPFITTER OPTION) FUSIBLE LINK 1 (8 GA- FUSIBLE LINK 2 (8 GA- FUSIBLE LINK 4 (14 GA- GRAY) FUSIBLE LINK 5 (10 GA- FUSIBLE LINK 6 (10 GA- GENERATOR 2 GENERATOR FIELD DUTY CYCLE SIGNAL GROUND GRY WIRE HOT IN RUN, START I/P RELAY BLOCK (NEAR LEFT KICK PANEL) IGN 1 VOLT IGN E FUSE INSTRUMENT PANEL CLUSTER JUNCTION BLOCK - BATTERY CABLE (AT LEFT SIDE OF ENG COMPT, NEAR BATTERY) LEFT BATTERY LEFT GENERATOR LOGIC MEGA FUSE PNK WIRE POWER DISTRIBUTION SYSTEM RED WIRE RIGHT BATTERY RIGHT BATTERY (W/AUX BATTERY) RIGHT GENERATOR SEO IGN FUSE SERIAL DATA CLASS 2 STARTER UNDERHOOD FUSE BLOCK (AT LEFT SIDE OF ENG COMPT) VOLTS W/ SEO W/AUX BATTERY W/DUAL BATTERIES W/O SEO WRECKER OPTION

8.1L ANTI-LOCK BRAKE SYSTEM AUXILIARY BATTERY RELAY (RIGHT REAR OF ENG COMPT) BATTERY BATTERY CABLE JUNCTION BLOCK (NEAR LEFT SIDE OF ENG) BATTERY NOT CHARGING BLK WIRE BLK/WHT WIRE BRN WIRE CHARGE INDICATOR CONTROL CLASS 2 SERIAL DATA COMPUTER DATA LINES SYSTEM DK BLU WIRE DK GRN WIRE DRIVER INFO CENTER EXCEPT 8.1L FUSE BLOCK MOBILE RADIO (UPFITTER OPTION) FUSIBLE LINK 1 (8 GA- FUSIBLE LINK 4 (14 GA- GRAY) FUSIBLE LINK 5 (10 GA- FUSIBLE LINK 6 (10 GA- GENERATOR B+ GENERATOR FIELD DUTY CYCLE SIGNAL GROUND GRY WIRE HOT IN RUN, START I/P RELAY BLOCK (NEAR LEFT KICK PANEL) IGN 1 VOLT IGN E FUSE INSTRUMENT PANEL CLUSTER LEFT BATTERY LOGIC MEGA FUSE PNK WIRE POWER DISTRIBUTION SYSTEM POWERTRAIN CONTROL MODULE (PCM) (ON LEFT FRONT OF ENGINE COMPARTMENT) RED WIRE RIGHT BATTERY RIGHT BATTERY (W/AUX BATTERY) SEO IGN FUSE SERIAL DATA CLASS 2 STARTER UNDERHOOD FUSE BLOCK (AT LEFT SIDE OF ENG COMPT) VOLTS W/ SEO W/AUX BATTERY W/DUAL BATTERIES W/O SEO WRECKER OPTION

1362 (OR 353) 349 1834 2306 (OR 371) AIRBAG FUSE BLK WIRE BLK/WHT WIRE BRN WIRE CLASS 2 SERIAL DATA DK BLU WIRE DK GRN WIRE EXCEPT 10 SERIES/ CREW CAB GROUND GRY WIRE HOT IN RUN OR START HVY I/P JUNCTION BLOCK (RIGHT SIDE OF DASH, BEHIND ACCESS PANEL) I/P RELAY BLOCK IGNITION 1 VOLTAGE INFLATABLE RESTRAINT I/P MODULE DISABLE SWITCH INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE (UNDER LEFT FRONT SEAT) INFLATABLE RESTRAINT STEERING WHEEL MODULE INFLATABLE RESTRAINT STEERING WHEEL MODULE COIL KEY SWITCH LEFT INFLATABLE RESTRAINT FRONT END SENSOR (ON LEFT FRONT OF VEHICLE) LOGIC LT BLU WIRE LT GRN WIRE NCA WIRE OFF ORG/ WIRE OTHERS PNK WIRE PNK (OR TAN/BLK) WIRE PNK 1 2 3 4 5 6 7 WIRE PNK W/ FRONT PASSENGER/ CHILD PRESENCE DETECTOR WIRE PNK WIRE PPL PPL PPL RED (OR PNK) WIRE RED WIRE RIGHT FRONT OF VEHICLE BOTTOM OF RADIATOR SUPPORT) RIGHT INFLATABLE RESTRAINT SIDE IMPACT SENSOR RIGHT SIGNAL HIGH CONTROL LOW CONTROL GROUND LOW CONTROL HIGH CONTROL RIGHT VOLTAGE HIGH CONTROL LOW CONTROL LOW REFERENCE LOW CONTROL HIGH CONTROL SHORTING BAR SHORTING BAR SHORTING BAR SIGNAL SIGNAL LOW REFERENCE LOW REFERENCE STAGE 1 INFLATABLE RESTRAINT I/P MODULE (BEHIND RIGHT SIDE OF DASH) STAGE 2 TAN WIRE TAN/BLK WIRE TWISTED PAIR WIRES UNDERHOOD FUSE BLOCK (AT LEFT SIDE OF ENG COMPT, NEAR BATTERY) W/ FRONT PASSENGER/ CHILD PRESENCE DETECTOR WHT WIRE YEL WIRE

AIR BAG BLK WIRE BLK/WHT WIRE BLU WIRE BRN WIRE BRN/WHT WIRE CLASS 2 SERIAL DATA DATA LINK CONNECTOR (LOWER LEFT SIDE OF DASH) DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DRIVER SEAT BELT SWITCH FRONT PASSENGER SEAT BELT SWITCH GRY WIRE I/P RELAY BLOCK (NEAR LEFT KICK PANEL) IGN IGNITION 1 VOLTAGE INFLATABLE RESTRAINT PASSENGER AIR BAG ON/OFF INDICATOR INFLATABLE RESTRAINT PASSENGER PRESENCE SYSTEM SENSOR INFLATABLE RESTRAINT PASSENGER SEAT BELT TENSION RETRACTOR SENSOR INSIDE REARVIEW MIRROR INSTRUMENT PANEL CLUSTER IPC CLASS 2 SERIAL DATA LEFT INFLATABLE RESTRAINT SEAT POSITION SWITCH LT BLU WIRE LT GRN WIRE MEMORY SYSTEM OFF PASS SEAT BELT TENS LO REF PPS SENS LO REF PASS SEAT BELT TENS SIG GROUND PPS SENS SIG PNK 1 2 3 4 5 6 7 WIRE PNK SERIAL DATA WIRE PPL RED WIRE RIGHT INFLATABLE RESTRAINT SEAT POSITION SWITCH SPLICE PACK TAN WIRE WHT WIRE YEL WIRE