GMC Sierra Classic 3500 (2007-2007) blk/wht Wiring diagrams

2-HI IND 4 HI 4 LO 4-HI IND 4-LO IND 4-LO IND 4-HI IND AXLE SW SIG BLK WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE CLASS II DATA AXLE CTRL CONTROL MODULE DIESEL: ENGINE CONTROL MODULE CTRL DATA LINK CONNECTOR (UNDER LEFT SIDE OF DASH) DIESEL (ECM) DK GRN WIRE DK GRN/WHT WIRE ENCODER ENCODER LOW GROUND ENCODER SIG FRONT AXLE ACTUATOR (ON FRONT AXLE) FT SHAFT LO FT SHAFT HI FUSE GAS (PCM) 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/WHT WIRE RED WIRE RR SHAFT HI RR SHAFT LO RUN WIRE SHIFT MOTOR SPLICE PACK 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 TRANSMISSION SYSTEM TREC FUSE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT)

A/T ISS SIG LOW VSS SIG LOW ALLISON TRANSMISSION AUTOMATIC TRANSMISSION SHIFT LEVER BLK WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM CRNK FUSE DATA BUS H DATA BUS L DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DRIVER SHIFT REQUEST SWITCH FLD PRESS SW SIG 4 TCC PCS LOW FLD PRESS SW SIG 2 TURB SPEED SW SIG FUSE GRD GRD B+ GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT IN HOT IN RUN, ACC, START I/P FUSE BLOCK (LOWER LEFT SIDE OF DASH) IGN 0 FUSE LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE MOD MAIN NCA WIRE ORG/ WIRE ORG/WHT WIRE PNK 6 7 8 WIRE PNK 9 10 11 WIRE PNK FLD PRESS SW SIG 1 VSS SIG HIGH WIRE PNK IGN 0 VOLT WIRE PNK PNK PNK WIRE PNK WIRE POWER DISTRIBUTION SYSTEM PPL PPL CRANK VOLT PPL PPL PPL PPL 1 2 PPL/WHT WIRE PRESS CONTROL SOLE 2 PTO SIG RANGE SW SIG A MAIN PRESS SOLENOID RED WIRE RED/BLK WIRE RUN WIRE SERIAL DATA DATA BUS L STOPLAMP SWITCH (ON BRAKE PEDAL BRACKET) TAN WIRE TAN/WHT WIRE TCC PSC TR SW SIG B TFT SENSOR SIG TR SW SIG C TR SW SIG P TRANSFER CASE CIRCUIT TURB SPEED SW UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) TCM B FUSE WHT WIRE YEL WIRE YEL/BLK WIRE

2 4 6 9 GROUND GROUND GROUND CLASS 2 SERIAL DATA 30 44 57 45 MIL CONTROL CAN DATA L CAN DATA H SIGNAL HIGH - FRONT 56 39 PNK IGNITION PARK/NEUTRAL SIG WIRE ALLISON TRANSMISSION AUTOMATIC TRANSMISSION INPUT SPEED SENSOR (IN AUTOMATIC TRANSMISSION) AUTOMATIC TRANSMISSION TURBINE SPEED SENSOR (IN UPPER LEFT OF TRANSMISSION) BLK WIRE BLK/WHT WIRE BLUNT CUT) BODY CONTROL MODULE (LOWER LEFT SIDE OF DASH, BELOW STEERING COLUMN) BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DATA LINK CONNECTOR DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE ENGINE CONTROLS SYSTEM FUSE GRY WIRE HOT AT ALL TIMES INSTRUMENT PANEL CLUSTER (IPC) INTERNAL MODE SWITCH IPC/DIC FUSE LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE MALFUNCTION INDICATOR LAMP OF TRANSMISSION) ORG/ WIRE ORG/BLK WIRE P/N PNK 6 7 8 WIRE PNK 9 10 11 WIRE PNK WIRE PNK/BLK WIRE POWER DISTRIBUTION SYSTEM PPL PPL PPL PPL PPL 1 2 PPL/BLK WIRE PPL/WHT WIRE PRESSURE SWITCH MANIFOLD PTO STATUS RED WIRE RED/BLK WIRE SPLICE PACK TAN WIRE TAN/WHT WIRE TFT SENSOR TOW/HAUL SWITCH TRANSFER CASE) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) BATTERY) VEHICLE SPEED SENSOR WHT WIRE YEL WIRE YEL/BLK 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) FRONT AXLE ACTUATOR (ON FRONT AXLE) 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 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)

2-HI IND 4 HI 4 LO 4-HI IND 4-LO IND 4-LO IND 4-HI IND AXLE SW SIG BLK WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE CLASS II DATA AXLE CTRL CONTROL MODULE DIESEL: ENGINE CONTROL MODULE CTRL DATA LINK CONNECTOR (UNDER LEFT SIDE OF DASH) DIESEL (ECM) DK GRN WIRE DK GRN/WHT WIRE ENCODER ENCODER LOW GROUND ENCODER SIG FRONT AXLE ACTUATOR (ON FRONT AXLE) FT SHAFT LO FT SHAFT HI FUSE GAS (PCM) 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/WHT WIRE RED WIRE RR SHAFT HI RR SHAFT LO RUN WIRE SHIFT MOTOR SPLICE PACK 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 TRANSMISSION SYSTEM TREC FUSE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT)

A/T ISS SIG LOW VSS SIG LOW ALLISON TRANSMISSION BLK WIRE BLK/WHT WIRE BRK FUSE BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM CRNK FUSE DATA BUS H DATA BUS L DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DRIVER SHIFT REQUEST SWITCH AUTOMATIC TRANSMISSION SHIFT LEVER FLD PRESS SW SIG 4 TCC PCS LOW FLD PRESS SW SIG 2 TURB SPEED SW SIG GRD GRD B+ GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT IN HOT IN RUN, ACC, START I/P FUSE BLOCK (LOWER LEFT SIDE OF DASH) IGN 0 FUSE LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE MAIN MALFUNC IND LAMP MOD MAIN NCA WIRE ORG/ WIRE ORG/BLK WIRE ORG/WHT WIRE PNK 12 13 14 WIRE PNK FLD PRESS SW SIG 1 VSS SIG HIGH WIRE PNK IGN 0 VOLT WIRE PNK PNK PNK WIRE PNK WIRE POWER DISTRIBUTION SYSTEM PPL PPL CRANK VOLT TORQUE SIG PPL PPL PPL PPL 1 2 PPL/WHT WIRE PRESS CONTROL SOLE 2 RANGE SW SIG A MAIN PRESS SOLENOID RED WIRE RED/BLK WIRE REQ TORQUE DATA BUS H RUN WIRE SERIAL DATA STOPLAMP SWITCH (ON BRAKE PEDAL BRACKET) TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TCC PSC TORQUE SIG PTO SIG TR SW SIG B TFT SENSOR SIG TR SW SIG C TR SW SIG P TRANSFER CASE) TURB SPEED SW UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) TCM B FUSE WHT WIRE YEL WIRE YEL/BLK WIRE

ALLISON TRANSMISSION AUTOMATIC TRANSMISSION INPUT SPEED SENSOR (IN AUTOMATIC TRANSMISSION) AUTOMATIC TRANSMISSION TURBINE SPEED SENSOR (IN UPPER LEFT OF TRANSMISSION) BLK WIRE BLK/WHT WIRE BLUNT CUT) BODY CONTROL MODULE (LOWER LEFT SIDE OF DASH) BRN WIRE BRN/WHT WIRE DATA LINK CONNECTOR DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE ENGINE CONTROLS SYSTEM FUSE GRY WIRE HOT AT ALL TIMES INSTRUMENT PANEL CLUSTER (IPC) INTERNAL MODE SWITCH IPC/DIC FUSE LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE MALFUNCTION INDICATOR LAMP OF TRANSMISSION) ORG/ WIRE ORG/BLK WIRE P/N PNK 12 13 14 WIRE PNK WIRE PNK/BLK WIRE POWER DISTRIBUTION SYSTEM PPL PPL PPL PPL PPL 1 2 PPL/BLK WIRE PPL/WHT WIRE PRESSURE SWITCH MANIFOLD RED WIRE RED/BLK WIRE SPLICE PACK TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TFT SENSOR TOW/HAUL SWITCH TRANSFER CASE) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) BATTERY) VEHICLE SPEED SENSOR WHT WIRE YEL WIRE YEL/BLK 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) FRONT AXLE ACTUATOR (ON FRONT AXLE) 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 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)

2-HI IND 4 HI 4 LO 4-HI IND 4-LO IND 4-LO IND 4-HI IND AXLE SW SIG BLK WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE CLASS II DATA AXLE CTRL CONTROL MODULE DIESEL: ENGINE CONTROL MODULE CTRL DATA LINK CONNECTOR (UNDER LEFT SIDE OF DASH) DIESEL (ECM) DK GRN WIRE DK GRN/WHT WIRE ENCODER ENCODER LOW GROUND ENCODER SIG FRONT AXLE ACTUATOR (ON FRONT AXLE) FT SHAFT LO FT SHAFT HI FUSE GAS (PCM) 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/WHT WIRE RED WIRE RR SHAFT HI RR SHAFT LO RUN WIRE SHIFT MOTOR SPLICE PACK 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 TRANSMISSION SYSTEM TREC FUSE 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 ELECTRONIC POWER STEERING (HYBRID) EXC HYBRID 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