GMC Sierra 1500 HD (2001-2006) left battery Wiring diagrams

4.3L 8 GA- 8 GA-BLK/WHT WIRE BATTERY BATTERY CABLE JUNCTION BLOCK BATTERY NOT CHARGING BLK WIRE BLK/WHT WIRE BRN WIRE CHARGE INDICATOR CONTROL CLASS 2 SERIAL DATA COMPUTER DATA LINES DK BLU WIRE DK GRN WIRE DRIVER INFO CENTER ENGINE ON SIGNAL FUSIBLE LINK 1 (EXCEPT 4.3L: GENERATOR GENERATOR FIELD DUTY CYCLE CONTROL GENERATOR BATTERY CONTROL MODULE GENERATOR FIELD DUTY CYCLE SIGNAL GROUND GROUND DISTRIBUTION SYSTEM GRY WIRE HOT AT ALL TIMES HOT IN RUN, START I/P RELAY BLOCK (UNDER LEFT SIDE OF DASH, NEAR KICK PANEL) IGN 1 VOLT IGN E FUSE INSTRUMENT PANEL CLUSTER LEFT BATTERY LOGIC ORG/BLK WIRE PNK WIRE POWER DISTRIBUTION SYSTEM POWERTRAIN CONTROL MODULE (PCM) (AT LEFT FRONT OF ENG COMPT) PPL GENERATOR REGULATOR CONTROL PUR RED/BLK WIRE RED/WHT WIRE RVC FUSE SUPPLEMENTAL BRAKE ASSIST PUMP MOTOR (MOUNTED TO POWER BRAKE BOOSTER) UNDERHOOD FUSE BLOCK (AT LEFT SIDE OF ENG COMPT, NEAR BATTERY) UPFITTER OPTION VOLTS W/ BRAKE VAC POWER

BATTERY BATTERY CABLE JUNCTION BLOCK BATTERY NOT CHARGING BLK WIRE BLK/WHT WIRE BRN WIRE CHARGE INDICATOR CONTROL CLASS 2 SERIAL DATA COMPUTER DATA LINES DK BLU WIRE DK GRN WIRE EARLY PRODUCTION ENGINE ON SIGNAL FUSIBLE LINK (8 GA- GENERATOR GENERATOR FIELD DUTY CYCLE CONTROL GENERATOR BATTERY CONTROL MODULE GENERATOR FIELD DUTY CYCLE SIGNAL GROUND GROUND DISTRIBUTION SYSTEM GRY WIRE HOT AT ALL TIMES HOT IN RUN, START I/P RELAY BLOCK (UNDER LEFT SIDE OF DASH, NEAR KICK PANEL) IGN 1 VOLT IGN E FUSE INSTRUMENT PANEL CLUSTER IPC CLASS 2 SERIAL DATA LEFT BATTERY LOGIC MASSAGE CENTER ORG/BLK WIRE PNK WIRE POWER DISTRIBUTION SYSTEM POWERTRAIN CONTROL MODULE (PCM) (AT LEFT FRONT OF ENG COMPT) PPL GENERATOR REGULATOR CONTROL PUR RED/WHT WIRE RVC FUSE SUPPLEMENTAL BRAKE ASSIST PUMP MOTOR (MOUNTED TO POWER BRAKE BOOSTER) UNDERHOOD FUSE BLOCK (AT LEFT SIDE OF ENG COMPT, NEAR BATTERY) UPFITTER OPTION VOLTS W/ BRAKE VAC POWER

AUXILIARY BATTERY RELAY (RIGHT REAR OF ENG COMPT) BATTERY BLK WIRE BLK/WHT WIRE BRN WIRE CHARGE INDICATOR CONTROL COMPUTER DATA LINES DK GRN WIRE FUSE HOLDER FUSIBLE LINK GENERATOR 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 IPC CLASS 2 SERIAL DATA LEFT BATTERY LOGIC PNK WIRE POWER DISTRIBUTION SYSTEM POWERTRAIN CONTROL MODULE (PCM) (ON LEFT FRONT OF ENGINE COMPARTMENT) 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

A/C COMPRESSOR CLUTCH A/C HIGH PRESSURE RECIRCULATING SWITCH A/C LOW PRESSURE SWITCH AUTOMATIC TRANSMISSION CONTROL (ALLISON) AUXILIARY BATTERY RELAY BLK WIRE BLK/WHT WIRE BODY RELAY BLOCK (UNDER LEFT SIDE OF DASH) BRAKE WINDSHIELD FLUID WIPER LEVEL UNDERHOOD MOTOR SWITCH LAMP MODULE COOLANT LEVEL SWITCH DATA LINK CONNECTOR (DLC) DIESEL DIESEL (RIGHT FRONT OF ENGINE) DUAL TANK ENGINE OIL LEVEL SWITCH FRONT WINDSHIELD WASHER FLUID PUMP FUEL HEATER FUEL INJECTION CONTROL MODULE (FICM) GAS GAS GAS GAS HEATED OXYGEN SENSOR COOLANT (BANK 2 LEVEL SENSOR 2) SWITCH GLOW PLUG/ INTAKE HEATER RELAY ASSEMBLY HEADLAMP RELAY HEATED HEATED HEATED OXYGEN OXYGEN OXYGEN SENSOR SENSOR SENSOR IGN 1 FUEL PUMP RELAY RELAY IGNITION COIL IGNITION COILS (LEFT BANK) IGNITION COILS (RIGHT BANK) INSTRUMENT PANEL CLUSTER (IPC) LEFT BATTERY LEFT DAYTIME RUNNING LAMP (DRL) LEFT FRONT FOG LAMP LEFT HORN LEFT PARK/ TURN SIGNAL LAMP LT GRN WIRE MASS AIR FLOW CRUISE (MAF) CONTROL SENSOR MODULE MODULE NCA WIRE OTHER 4.3L GAS PARK/ THROTTLE NEUTRAL ACTUATOR POSITION CONTROL SWITCH MODULE PNK WIRE POWER TAKEOFF (PTO) POWERTRAIN CONTROL MODULE (PCM) RIGHT BATTERY RIGHT DAYTIME RUNNING LAMP (DRL) RIGHT FRONT FOG LAMP RIGHT HORN RIGHT PARK/ TURN SIGNAL LAMP SECONDARY FUEL FUEL PUMP, PUMP, SENDER SENDER ASSEMBLY ASSEMBLY STARTER RELAY TRANSFER CASE SHIFT CONTROL MODULE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) W/ATC W/O ATC WASHER FLUID LEVEL SENSOR WATER IN-FUEL SENSOR WHT WIRE YEL WIRE

2500 2500 1 2 HI SPD GMLAN SRL DATA + HI SPD GMLAN SRL DATA + 2501 2501 HI SPD GMLAN SRL DATA - HI SPD GMLAN SRL DATA - 5084 5691 HI VOLTAGE BATTERY + 5685 5595 50 5087 5686 5683 APO NEUTRAL HI VOLT INTERLOCK LOOP SIG 2 BATTERY BLK WIRE BLK/WHT WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM COOLING FANS SYSTEM DK GRN WIRE ENG SPD SIG ESCM FUSE HCH-B FUSE GRN WIRE HCM-I FUSE HIGH SPEED GMLAN SERIAL (+) CRANK VOLTAGE ENGINE SPEED SIGNAL HOOD AJAR SWITCH HOT AT ALL TIMES HOT IN RUN OR START HYBRID CONTROL MODULE HYBRID FUSE INSTRUMENT CLUSTER SYSTEM LEFT BATTERY LT BLU WIRE LT BLU/BLK WIRE NCA WIRE ORG/ WIRE ORG/BLK WIRE PHASE 1 PHASE 2 PHASE 3 PNK 1 2 3 WIRE PNK COOLANT PUMP RLY CTRL WIRE PNK WIRE PNK/BLK WIRE PNK/WHT WIRE PNP MEDIUM RESOLU- TION ENGINE SPEED SIGNAL POWER DISTRIBUTION SYSTEM PPL PPL 13 14 15 PPL 5 6 7 8 PPL HI VOLT INTERLOCK LOOP SIG 2 GROUND APO PHASE A PPL PNK WIRE PPL/WHT WIRE RED WIRE STARTER ENABLE RLY CTRL STARTER/GENERATOR CONTROL MODULE (RIGHT REAR OF ENG COMPT) STATOR ELECTRIC MOTOR SWITCH SIGNAL TAN WIRE TAN/WHT WIRE TRANSMISSIONS SYSTEM UNDERHOOD SECONDARY FUSE BLOCK (LEFT SIDE OF ENG COMPT, REAR OF BATTERY) WHT WIRE YEL WIRE YEL/BLK WIRE

A/C FUSE A/C RELAY ABS FUSE ACCESSORY POWER OUTLET AIR FUSE AUDIO AMPLIFIER AUTOMATIC TRANSMISSION CONTROL MODULE (ALLISON) BATTERY CABLE JUNCTION BLOCK BLK WIRE BODY CONTROL MODULE BODY RELAY BLOCK (UNDER LEFT SIDE OF DASH) CIGAR LIGHTER CTSY LP FUSE DATA LINK CONNECTOR (DLC) DIESEL ONLY DK GRN WIRE DK USED DRL FUSE EARLY SIERRA PRO ECM-B FUSE ELECTRONIC BRAKE CONTROL MODULE (EBCM) ENGINE CONTROL MODULE (ECM) POWERTRAIN CONTROL MODULE (PCM) EXTERIOR ILLUM LAMPS RELAY FOG LPS FUSE FOGLAMP RELAY FROM AIR FUSE (DIAGRAM 1 OF 4) FROM FUSE BLOCK (DIAGRAM 4 OF 4) FROM RAP FUSE (DIAGRAM 1 OF 4) PARK LAMPS FUSE FRONT BLOWER MOTOR RESISTOR ASSEMBLY FRONT PASSENGER WINDOW/DOOR LOCK SWITCH FRT HVAC FUSE FUEL PUMP RELAY FUSIBLE LINK GRN WIRE HAZARD FUSE HEADLAMP DAYTIME RELAY RUNNING LAMP (DRL) RELAY HEADLAMP DIMMER SWITCH HEADLAMP ROOF SWITCH BEACON RELAY HEADLAMP SWITCH HORN RELAY HVAC CONTROL MODULE INADVERTENT POWER RELAY INSTRUMENT DRIVER PANEL INFOR- CLUSTER MATION (IPC) CENTER (DIC) INTERIOR LIGHT SUSTEM LATE LEFT BATTERY LEFT GENERATOR LEFT I/P FUSE BLOCK LUXURY NCA WIRE ORG/ WIRE PARKLAMP RELAY PASSENGER DRIVER SEAT SEAT PWR WDO CB POWER TAKEOFF (PTO) RELAY RADIO RADIO FUSE RAP 1 FUSE RAP 2 FUSE RAP 2 RELAY RDO AMP FUSE REAR DEFOGGER RELAY REAR WHEEL STEERING CONTROL MODULE RED WIRE REMOTE CONTROL DOOR LOCK RECEIVER RIGHT GENERATOR (W/ DUAL GENERATOR) RIGHT REAR WINDOW SWITCH ROOF THERMO BEACON CUPHOLDER SWITCH ASSEMBLY SEO 1 FUSE SEO 2 FUSE SIERRA DENALI STARTER SOLENOID STOP LPS FUSE ATC FUSE STOPLAMP TRANSFER SWITCH CASE SHIFT MODULE TBC FUSE TO ECM B FUSE (DIAGRAM 1 OF 4) TO FUSE BLOCK (MIR/LOCK FUSE) (DIAGRAM 4 OF 4) TO FUSIBLE LINK (DIAGRAM 3 OF 4) TO IGN 1 RELAY (DIAGRAM 3 OF 4) TO IGN A FUSE (DIAGRAM 2 OF 4) AUX PWR FUSE CIGAR FUSE TO PARK LAMPS FUSE (DIAGRAM 1 OF 4) TRANSFER CASE ENCODER MOTOR TURN SIGNAL/ MULTI-FUNCTION SWITCH UNDER- HOOD FUSE BLOCK (ON LEFT SIDE OF ENGINE UNDER- HOOD FUSE BLOCK (ON LEFT SIDE OF ENGINE COMPT)

71 39 (DIESEL) (GASOLINE) BATTERY CABLE JUNCTION BLOCK (NEAR LEFT SIDE OF ENG COMPT) BLK WIRE CLUTCH CLUTCH CRANK VOLT SW SIGN CRANK FUSE DIESEL DK GRN WIRE GASOLINE GRN WIRE IGN A FUSE IGN B FUSE IGN E FUSE IGNITION SWITCH LEFT BATTERY LOCK OFF PARK/ NEUTRAL POSITION SWITCH (A/T) (ON LEFT SIDE OF TRANS) PNK PNK WIRE PNK PPL WIRE PNK WIRE POWER DISTRIBUTION SYSTEM POWER POWER DISTRIBUTION DISTRIBUTION SYSTEM SYSTEM PPL RED WIRE RUN WIRE STARTER MOTOR STARTER RELAY STARTER SOLENOID SWITCH (M/T) (ON TOP OF CLUTCH PEDAL ASSEMBLY) UNDER- HOOD FUSE BLOCK (LEFT SIDE OF ENG COMPT) UNDERHOOD FUSE BLOCK (AT LEFT SIDE OF ENG COMPT) W/ ALLISON A/T W/O ALLISON A/T YEL WIRE YEL/BLK WIRE

35 39 (DIESEL) (GASOLINE) A/T BLK WIRE CLUTCH CLUTCH START SWITCH SIGN CRANK FUSE CRANK SIGN DK GRN WIRE GASOLINE ONLY GRN WIRE IGN A FUSE IGN B FUSE IGN E FUSE IGNITION SWITCH LEFT BATTERY LOCK OFF M/T PARK/NEUTRAL POSITION SWITCH (A/T) (ON LEFT SIDE OF TRANSMISSION) PNK PNK WIRE PNK WIRE POWER DISTRIBUTION SYSTEM PPL RED WIRE RUN WIRE STARTER MOTOR STARTER RELAY STARTER SOLENOID SWITCH (M/T) (ON TOP OF CLUTCH PEDAL ASSEMBLY) UNDERHOOD FUSE BLOCK (AT LEFT SIDE OF ENG COMPT) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENG COMPT) UNDERHOOD JUNCTION BLOCK (AT LEFT SIDE OF ENG COMPT) YEL WIRE YEL/BLK WIRE