GMC Sierra 2500 (2000-2004) seo ign fuse Wiring diagrams

AUXILIARY BATTERY RELAY (RIGHT REAR OF ENG COMPT) BATTERY BLK WIRE BLK/WHT WIRE BRN WIRE CHARGE INDICATOR CONTROL COMPUTER DATA LINES DK BLU WIRE DK GRN WIRE EXC 4.3L, 8.1L 4.3L, 8.1L 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 LOGIG 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 SUPPLEMENTAL BRAKE ASSIST (SBA) PUMP MOTOR (MOUNTED TO POWER BRAKE BOOSTER) UNDERHOOD FUSE BLOCK (AT LEFT SIDE OF ENG COMPT) UPFITTER OPTION VOLTS W/ SEO W/AUX BATTERY W/DUAL BATTERIES W/O SEO

A/C COMP RELAY B/U LP FUSE BACKUP LAMP SWITCH BODY CONTROL MODULE BRN WIRE CLUTCH DEFOG RELAY EXC 8.L W/O CALIFORNIA LEV FROM IGN B FUSE (DIAGRAM 1 OF 6) FUSE FUSE BLOCK MOBILE RADIO (UPFITTER OPTION) HEATED OXYGEN SENSOR BANK 1 SENSOR 1 HEATED OXYGEN SENSOR BANK 1 SENSOR 2 HEATED OXYGEN SENSOR BANK 2 SENSOR 2 HEATED OXYGEN SENSOR BANK 2 SENSOR 1 I/P RELAY BLOCK (NEAR LEFT KICK PANEL) IGN E FUSE IGNITION SWITCH INFLATABLE RESTRAINT I/P MODULE DISABLE SWITCH INSTRUMENT PANEL CLUSTER TURN SIGNAL/ MULTIFUNCTION SWITCH LEFT I/P FUSE BLOCK (LOWER LEFT SIDE OF DASH) LOCK OFF M/T PNK WIRE NCA WIRE PARK/NEUTRAL POSITION SWITCH (A/T) PNK PNK PNK WIRE PNK PNK WIRE PNK WIRE RED WIRE RR WPR FUSE RUN WIRE SELECTABLE RIDE SWITCH INSTRUMENT PANEL CLUSTER SEO ACCY FUSE SEO IGN FUSE SIR FUSE SWITCH (M/T) TBC ACCY FUSE TBC IGN 1 FUSE TO IGN 1 RELAY (DIAGRAM 3 OF 6) WHT WIRE WINDSHIELD WIPER MOTOR MODULE WS WPR FUSE YEL WIRE

A/C COMP RELAY B/U LP FUSE BACKUP LAMP SWITCH BODY CONTROL MODULE BRN WIRE CLUTCH DEFOG RELAY EXC 8.L W/O CALIFORNIA LEV FROM IGN B FUSE (DIAGRAM 1 OF 6) FUSE FUSE BLOCK MOBILE RADIO (UPFITTER OPTION) HEATED OXYGEN SENSOR BANK 1 SENSOR 1 HEATED OXYGEN SENSOR BANK 1 SENSOR 2 HEATED OXYGEN SENSOR BANK 2 SENSOR 2 HEATED OXYGEN SENSOR BANK 2 SENSOR 1 I/P RELAY BLOCK (NEAR LEFT KICK PANEL) IGN E FUSE IGNITION SWITCH INFLATABLE RESTRAINT I/P MODULE DISABLE SWITCH INSTRUMENT PANEL CLUSTER TURN SIGNAL/ MULTIFUNCTION SWITCH LEFT I/P FUSE BLOCK (LOWER LEFT SIDE OF DASH) LOCK OFF M/T PNK WIRE NCA WIRE PARK/NEUTRAL POSITION SWITCH (A/T) PNK PNK PNK WIRE PNK PNK WIRE PNK WIRE RED WIRE RR WPR FUSE RUN WIRE SELECTABLE RIDE SWITCH INSTRUMENT PANEL CLUSTER SEO ACCY FUSE SEO IGN FUSE SIR FUSE SWITCH (M/T) TBC ACCY FUSE TBC IGN 1 FUSE TO IGN 1 RELAY (DIAGRAM 3 OF 6) WHT WIRE WINDSHIELD WIPER MOTOR MODULE WS WPR FUSE YEL WIRE

ABS FUSE ANTI-LOCK IND BLK WIRE BLK/WHT WIRE BRAKE FLUID LEVEL SW IN BRAKE FLUID LEVEL SWITCH (ON LEFT SIDE OF BRAKE FLUID RESERVOIR) BRAKE IN BRAKE IND BRN WIRE BRN/WHT WIRE CLUTCH START SWITCH (M/T) (TOP OF CLUTCH CLUTCH ASSY) DEL TORQUE DK GRN WIRE DK GRN/WHT WIRE ELECTRONIC BRAKE CONTROL MODULE (EBCM) (ON LEFT SIDE OF INNER FRAME) EXCEPT SEO GRY WIRE HOT AT ALL TIMES HOT IN RUN LEFT I/P FUSE BLOCK (ON LOWER LEFT SIDE OF DASH) BRAKE FUSE HOT IN RUN OR START IGN E FUSE IGNITION LEFT FRONT SENSOR (-) RIGHT FRONT SENSOR (+) DELIVERED TORQUE INSTRUMENT CLUSTER LEFT FRONT WHEEL SPEED SENSOR LOGIC LT BLU WIRE LT GRN/BLK WIRE NCA WIRE OF TRANSFER CASE) OF TRANSMISSION) ORG/BLK WIRE PNK WIRE POWERTRAIN CONTROL MODULE (PCM) (ON LEFT FRONT OF ENGINE COMPT) PPL PPL DATA LINK CONNECTOR (DLC) (BELOW STEERING COLUMN) PPL PPL PPL/WHT WIRE RED WIRE REQ TORQUE RIGHT FRONT WHEEL SPEED SENSOR SEO SEO IGN FUSE STOPLAMP SWITCH (ON TOP OF BRAKE PEDAL BRACKET) TAN WIRE TAN/BLK WIRE TCC BRAKE SW TRACTION CONTROL IND (IF EQUIPPED) TRACTION CONTROL SWITCH TRANSFER CASE SHIFT CONTROL MODULE TRANSMISSIONS SYSTEM TRANSMISSIONS SYSTEM (TRANSFER CASE CIRCUIT) UNDERHOOD FUSE BLOCK (AT LEFT SIDE OF ENG COMPT, NEAR BATTERY) UNDERHOOD FUSE BLOCK (AT LEFT SIDE OF ENGINE COMPT) VEHICLE SPEED SENSOR (VSS) VSS HIGH VSS LOW VSS OUT YEL WIRE YEL/BLK WIRE

59 33 (DIESEL) (GAS) ABS FUSE ANTI-LOCK IND BLK WIRE BLK/WHT WIRE BRAKE FLUID LEVEL SWITCH (ON LEFT SIDE OF BRAKE FLUID RESERVOIR) BRAKE IND BRN WIRE CLUTCH START SWITCH (TOP OF CLUTCH CLUTCH ASSY) CPP SW SIG DK GRN WIRE DK GRN/WHT WIRE ELECTRONIC BRAKE CONTROL MODULE (EBCM) (ON LEFT SIDE OF INNER FRAME) EXCEPT SEO GRY WIRE HOT AT ALL TIMES HOT IN RUN HOT IN RUN OR START IGN E FUSE IGNITION INSTRUMENT CLUSTER LEFT FRONT SENSOR (-) RIGHT FRONT SENSOR (+) BRAKE INPUT LEFT FRONT WHEEL SPEED SENSOR LEFT I/P FUSE BLOCK (ON LOWER LEFT SIDE OF DASH) BRAKE FUSE LOGIC LT BLU WIRE LT GRN/BLK WIRE M/T ONLY NCA WIRE OF TRANSFER CASE) OF TRANSMISSION) PNK WIRE PPL PPL DATA LINK CONNECTOR (DLC) (BELOW STEERING COLUMN) PPL PPL PPL/WHT WIRE RED WIRE RIGHT FRONT WHEEL SPEED SENSOR SEO SEO IGN FUSE STOP- LAMP SWITCH (ON TOP OF BRAKE PEDAL BRACKET) TAN WIRE TCC BRAKE SW TRANSFER CASE SHIFT CONTROL MODULE TRANSMISSIONS SYSTEM TRANSMISSIONS SYSTEM (TRASFER CASE CIRCUIT) UNDERHOOD FUSE BLOCK (AT LEFT SIDE OF ENG COMPT, NEAR BATTERY) UNDERHOOD FUSE BLOCK (AT LEFT SIDE OF ENGINE COMPT, NEAR BATTERY) VEHICLE SPEED SENSOR (VSS) VSS HIGH VSS LOW VSS OUTPUT YEL WIRE YEL/BLK WIRE

59 33 (DIESEL) (GAS) ABS FUSE ANTI-LOCK IND BLK WIRE BLK/WHT WIRE BRAKE FLUID LEVEL SW IN BRAKE FLUID LEVEL SWITCH (ON LEFT SIDE OF BRAKE FLUID RESERVOIR) BRAKE IN BRAKE IND BRN WIRE BRN/WHT WIRE CLUTCH START SWITCH (TOP OF CLUTCH CLUTCH ASSY) DEL TORQUE DK GRN WIRE DK GRN/WHT WIRE ELECTRONIC BRAKE CONTROL MODULE (EBCM) (ON LEFT SIDE OF INNER FRAME) EXCEPT SEO GRY WIRE HOT AT ALL TIMES HOT IN RUN LEFT I/P FUSE BLOCK (ON LOWER LEFT SIDE OF DASH) BRAKE FUSE HOT IN RUN OR START IGN E FUSE IGNITION LEFT FRONT SENSOR (-) RIGHT FRONT SENSOR (+) DELIVERED TORQUE ILLUM LAMP INSTRUMENT CLUSTER LEFT FRONT WHEEL SPEED SENSOR LOGIC LT BLU WIRE LT GRN/BLK WIRE M/T ONLY NCA WIRE OF TRANSFER CASE) OF TRANSMISSION) ORG/BLK WIRE PNK WIRE PPL PPL DATA LINK CONNECTOR (DLC) (BELOW STEERING COLUMN) PPL PPL PPL/WHT WIRE RED WIRE REQ TORQUE RIGHT FRONT WHEEL SPEED SENSOR SEO SEO IGN FUSE STOPLAMP SWITCH (ON TOP OF BRAKE PEDAL BRACKET) TAN WIRE TAN/BLK WIRE TCC BRAKE SW TRACTION CONTROL SWITCH TRANSFER CASE SHIFT CONTROL MODULE TRANSMISSIONS SYSTEM TRANSMISSIONS SYSTEM (TRASFER CASE CIRCUIT) UNDERHOOD FUSE BLOCK (AT LEFT SIDE OF ENG COMPT, NEAR BATTERY) UNDERHOOD FUSE BLOCK (AT LEFT SIDE OF ENGINE COMPT, NEAR BATTERY) VEHICLE SPEED SENSOR (VSS) VSS HIGH VSS LOW VSS OUT YEL WIRE YEL/BLK WIRE

5.3L W/DUAL BATTERIES AUXILIARY BATTERY RELAY (RIGHT REAR OF ENG COMPT) BATTERY BLK WIRE BLK/WHT WIRE BRN WIRE CHARGE INDICATOR CONTROL COMPUTER DATA LINES DK BLU WIRE DK GRN WIRE FUSIBLE LINK FUSIBLE LINK (8.1L ONLY) GENERATOR B+ GENERATOR FIELD DUTY CYCLE SIGNAL GROUND GRY WIRE HOT IN RUN, START I/P RELAY BLOCK (BELOW LEFT SIDE OF DASH, LEFT OF STEERING COLUMN) IGN 1 VOLT IGN E FUSE INSTRUMENT PANEL CLUSTER IPC CLASS 2 SERIAL DATA LEFT BATTERY LOGIG PNK WIRE POWER DISTRIBUTION SYSTEM RED WIRE RIGHT BATTERY RIGHT BATTERY (W/AUX BATTERY) SEO IGN FUSE SERIAL DATA CLASS 2 SPLICE PACK STARTER SOLENOID SUPPLEMENTAL BRAKE ASSIST (SBA) PUMP MOTOR (MOUNTED TO POWER BRAKE BOOSTER) UNDERHOOD FUSE BLOCK (AT LEFT SIDE OF ENG COMPT, NEAR BATTERY) W/ SEO W/AUX BATTERY W/O SEO

BLK WIRE HOT IN RUN AND START I/P RELAY BLOCK I/P RELAY BLOCK (NEAR LEFT KICK PANEL) LEFT FRONT SHOCK ABSORBER SOLENOID (PART OF LEFT FRONT SHOCK) LEFT REAR SHOCK ABSORBER SOLENOID (PART OF LEFT REAR SHOCK) NORMAL/ FIRM PNK WIRE RIGHT FRONT SHOCK ABSORBER SOLENOID (PART OF RIGHT FRONT SHOCK) RIGHT REAR SHOCK ABSORBER SOLENOID (PART OF RIGHT REAR SHOCK) SELECTABLE RIDE SWITCH SEO IGN FUSE TAN WIRE TAN/WHT WIRE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) WHT WIRE

2115 2713 EXTERIOR LIGHTS SYSTEM ABS IND. AIR BAG IND BATTERY GROUND BATTERY IND BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (ON LOWER LEFT SIDE OF DASH, BELOW STEERING COLUMN) BRAKE IND BRN/WHT WIRE CARGO LAMP IND CLASS 2 DATA COMPUTER DATA LINES COOLANT TEMP GAUGE CRUISE IND DIC MODE SW DIC TOGGLE SW DIC SW SIG DIC FUEL SIG DIESEL ONLY DK BLU WIRE DK GRN/WHT WIRE EXCEPT SEO EXCEPT SEO SEO FUEL GAUGE FUSE GRY WIRE HIGH BEAM IND HOT AT ALL TIMES HOT IN RUN OR START I/P DIM I/P RELAY BLOCK IGN E FUSE IGNITION IGNITION CLASS 2 DATA ILLUMINATION INSTRUMENT PANEL CLUSTER IPC SERIAL DATA IPC/DIC FUSE LAMP LEFT TURN LEFT TURN IND LOW FUEL IND LT BLU WIRE MESSAGE DISPLAY VARIABLE DIMMING MIL CNTRL WAIT TO START LO WASH FLUID VSS ENG SPEED SIG OIL GAUGE ORG/ WIRE ORN/ OVERDRIVE OFF IND PNK WIRE RED WIRE RIGHT TURN BRAKE RIGHT TURN IND SEAT BELT IND SECURITY IND SEO SEO IGN FUSE SOON IND (MIL) SERVICE ENGINE SPEEDOMETER TACHOMETER TIRE PRESSURE IND TOW/HAUL IND TRACTION CONTROL IND TRANSMISSION TEMP GAUGE TRIP ODOMETER HOUR METER TRIP RESET UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) UPSHIFT IND VOLTS GAUGE WAIT TO START IND WASHER FLUID LEVEL SENSOR (IN WASHER FLUID RESERVOIR) WHT WIRE YEL WIRE

BLK WIRE BLK/WHT WIRE BRN WIRE DATA LINK CONNECTOR (UNDER LEFT SIDE OF DASH) DK GRN WIRE DSL(ECM) GAS (PCM) ELECTRONIC BRAKE CONTROL MODULE (ON LEFT SIDE OF INNER FRAME) EXCEPT SEO FRONT AXLE ACTUATOR FUSE GRY WIRE GRY/BLK WIRE HOT IN HOT IN RUN OR START IGN E FUSE INSTRUMENT PANEL CLUSTER LAMP LEFT I/P FUSE BLOCK (LOWER LEFT SIDE OF DASH) 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 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)