All Wiring Diagrams for GMC Sierra 2000 1500

AIR CONDITIONING

Compressor Wiring Diagram for GMC Sierra 2000 1500

List of elements for Compressor Wiring Diagram for GMC Sierra 2000 1500:

• 4.3l
• A/c compressor clutch
• A/c compressor clutch relay
• A/c fuse 10a
• A/c high pressure cutout switch (on a/c compressor)
• A/c high pressure recirculating switch (in a/c muffler hose)
• A/c low pressure cycling switch (on a/c compressor)
• A/c request
• A/c switch
• All others
• G100 (on left radiator support bracket)
• G110 (4.8l, 5.3l, 6.0l) (left front of engine)
• G119 (4.3l) (right front of engine)
• Hot at all times
• Hot in run or start
• Hvac control module
• Ign e fuse 10a
• Powertrain control module (pcm) (left front of engine compt)
• Press switch a/c high
• Relay ctrl a/c comp
• S101 (forward lamp harn)
• S102 (engine harn)
• Underhood junction block (left side of engine compt, near battery)

Heater Wiring Diagram for GMC Sierra 2000 1500

List of elements for Heater Wiring Diagram for GMC Sierra 2000 1500:

• Blower motor
• Blower motor relay
• Blower motor resistor assembly (on hvac module, near blower motor)
• Blower motor switch
• D12
• Frt hvac fuse 30a
• Fuse block (lower left side of dash)
• G203 (right side of dash, at "a" pillar)
• Hot at all times
• Hot in run
• Htr-a/c fuse 25a
• Interior lights system
• Off
• Tan
• Underhood junction block (left side of engine compt, near battery)

Manual A/C Wiring Diagram, Base for GMC Sierra 2000 1500

List of elements for Manual A/C Wiring Diagram, Base for GMC Sierra 2000 1500:

• 4.3l
• A a/c disable
• A/c comp relay ctrl
• A/c compressor clutch
• A/c compressor clutch relay
• A/c fuse 10a
• A/c high pressure cutout switch (on a/c compressor)
• A/c high pressure recirculating switch (in a/c muffler hose)
• A/c low pressure switch (right side of accumulator)
• A/c request
• A/c switch
• Air temperature actuator (bottom center of hvac module)
• All others
• B mode signal
• Blower motor (under right side of dash)
• Blower motor resistor/relay assembly (on hvac module, near blower motor)
• Blower relay
• Body junctioin block
• C ground
• D recirc signal
• D12
• Defogger system
• E illumination
• F temp signal
• Frt hvac fuse 30a
• Fuse block (lower left side of dash)
• G feedback
• G100 (on left radiator support bracket)
• G110 (4.8l, 5.3l, 6.0l) (left front of engine)
• G119 (4.3l) (right front of eng)
• G200 (on upper left dash at "a" pillar)
• G200 (right side of dash, at "a" pillar)
• H 5v reference
• High
• Hot at all times
• Hot in run
• Hot in run or start
• Htr-a/c fuse 25a
• Hvac 1 fuse 10a
• Hvac control module (under radio)
• Ign e fuse 10a
• Interior lights system
• J rear defog
• K ign power
• L a/c request
• Low
• M feedback
• Mode actuator (left side of hvac module)
• Off
• Powertrain control module (pcm) (left front of engine of engine compt)
• Press sw a/c high
• Recirculation actuator (top of hvac module)
• Red
• S101 (forward lamp harness)
• S102 (engine harn)
• Sp203
• Tan
• Underhood junctioin block (left side of engine compt, near battery)

Manual A/C Wiring Diagram, Up Level for GMC Sierra 2000 1500

List of elements for Manual A/C Wiring Diagram, Up Level for GMC Sierra 2000 1500:

• 4.3l
• A a/c disable
• A/c compressor clutch
• A/c compressor clutch relay
• A/c fuse 10a
• A/c high press sw
• A/c high pressure cutout switch (on a/c compressor)
• A/c high pressure recirculating switch (in a/c muffler hose)
• A/c request
• A/c switch
• Air temperature actuator (bottom center of hvac module)
• All others
• B mode signal
• Blower motor (under right side of dash)
• Blower motor resistor assembly (on hvac module, near blower motor)
• Blower relay
• C ground
• C3 c3
• D recirc signal
• D12
• Defogger system
• E illumination
• F temp signal
• Frt hvac fuse 30a
• Fuse block (lower left side of dash)
• G feedback
• G100 (on left radiator support bracket)
• G110 (4.8l, 5.3l, 6.0l) (left front of engine)
• G119 (4.3l) (right front of eng)
• G203 (right side dash, at "a" pillar)
• H 5v reference
• Hot at all times
• Hot in run
• Hot in run or start
• Htr-a/c fuse 25a
• Hvac 1 fuse 10a
• Hvac control module (under radio)
• I/p junction block (lower right side of dash)
• Ign e fuse 10a
• Interior lights system
• J rear defog
• K ign power
• L a/c request
• M feedback
• Mode actuator (left side of hvac module)
• Off
• Powertrain control module (pcm) (left side of engine compt)
• Recirculation actuator (top of hvac module)
• Red
• Relay ctrl a/c comp
• S101 (forward lamp harness)
• S102 (engine harn)
• Tan
• Underhood junctioin block (left side of engine compt, near battery)

ANTI-LOCK BRAKES

Anti-lock Brake Wiring Diagrams for GMC Sierra 2000 1500

List of elements for Anti-lock Brake Wiring Diagrams for GMC Sierra 2000 1500:

• 4.3l
• A4 c1
• Abs fuse 60a
• Automated transfer case control module (left side of dash, above headlight switch)
• Body wiring harness junction block (near left kick panel)
• Brake fluid level sw in
• Brake fluid level switch (left side of brake fluid reservoir)
• Brake fuse 10a
• Brake input
• Brake pressure modulator valve
• C11
• C8 a
• Data link connector (below steering column)
• Electronic brake control module (left side of inner frame)
• Engine control system
• Engine wiring harness junction block (left side of engine compt)
• Except 4.3 l
• F6 c3
• F7 c2
• Front axle act/sw input
• Front axle actuator/ switch (on axle housing)
• Fuse block (lower left side of dash)
• G110 (4.8l, 5.3l, 6.0l) (left front of engine)
• G116 (left rear of engine compt, near bulkhead)
• G119 (4.3l) (rt frt of eng)
• Ground
• Hot at all times
• Hot in run
• Hot in run and start
• Ign 1 fuse 10a
• Ignition
• Instrument cluster
• Left front sensor (+)
• Left front sensor (-)
• Left front wheel speed sensor
• Logic
• Motor & solenoid pwr
• Nca
• Pnk
• Power distribution system
• Powertrain control module or vehicle control module (left front of engine compt)
• Pump motor
• Red
• Right front sensor (+)
• Right front sensor (-)
• Right front wheel speed sensor
• S102
• Serial data
• Splice pack 205 center (near left kick panel)
• Stoplamp switch (top of brake pedal bracket)
• Tan
• Vehicle speed sensor (left rear of transmission)
• Vehicle speed sensor adapter (4wd only) (left side of transfer case)
• Vss high
• Vss input
• Vss low
• Vss output

ANTI-THEFT

Forced Entry Wiring Diagram for GMC Sierra 2000 1500

List of elements for Forced Entry Wiring Diagram for GMC Sierra 2000 1500:

• A11
• Body control module (in center console)
• Door unlock
• Engine wiring harness junction block
• Ex lights ctrl
• Exterior lights system
• F10
• G200 (upper left kick panel)
• G203 (upper right kick panel)
• G998 (rear corner or right rear window)
• Grd
• Headlights ctrl
• Headlights system
• Horn rly ctrl
• Horns system
• Hot at all times
• I/p wiring harness junction block (lower right side of dash)
• Left front mini-wedge door jamb switch
• Left front power window/door lock switch
• Lift gate door key switch
• Rear door key switch
• Remote keyless entry system
• Right door contactor
• Right front mini-wedge door jamb switch
• Right front power window/door lock switch
• Sp203
• Sp410
• Tbc fuse 10a
• W/ cargo doors
• W/o cargo doors

Passlock Wiring Diagram for GMC Sierra 2000 1500

List of elements for Passlock Wiring Diagram for GMC Sierra 2000 1500:

• 12v ref
• A12
• Battery
• Body control module (in center console)
• Capacitor 0.47mf
• Connector (below steering column)
• Cruise fuse 10a
• Data
• Data link
• Engine wiring harness junction block
• Except 4.3l 4.3l
• F10
• Filter (molded in steering column harness)
• Fuse block
• G200 (upper left kick panel)
• Grd
• Hot at all times
• Hot in run
• Ign 1 fuse 10a
• Ign pwr
• Mid bussed electrical center (near left kick panel)
• Nca
• Passlock sensor (internal to steering column)
• Passlock signal
• Pnk
• Resistor 10 ohms
• Sensor data
• Sensor grd
• Sensor pwr
• Sensor ret
• Sp203
• Sp203 (upper left kick panel)
• Steering handwheel speed/position sensor (on steering column, near firewall)
• Tbc fuse 10a
• Vehicle control module (4.3l) powertrain control module (except 4.3l) (on left front of engine compt)
• W/o rear time damping only

BODY COMPUTER

Body Computer Wiring Diagrams for GMC Sierra 2000 1500

List of elements for Body Computer Wiring Diagrams for GMC Sierra 2000 1500:

• 12v ref
• 54 (or 54 or 394)
• 5v ref
• A10
• A11
• A12
• Acc relay
• Ambient light sensor (top center of dash)
• Anti-theft system
• B10
• B11
• B12
• Battery
• Body control module (in center console)
• Body wiring harness junction block
• Cargo lp
• Class 2 data
• Computer data lines system
• Cruise fuse 10a
• Ctsy lp
• Ctsy lp rly
• Door latch
• Door locks system
• Door sw
• Dr unlk rly
• Drl rly coil
• Electronic power steering system
• Engine controls system
• Engine wiring harness junction block
• Evo hi
• Evo lo
• Exterior lights system
• F10
• Fog lp rly
• Fog lp sw
• Ftp sw
• Fuse block
• G203 (on left "a" pillar)
• Ground
• Headlamp rly
• Headlights system
• Headlp dim
• Horn rly out
• Horns system
• Hot at all times
• Hot in run
• Hot in run & start
• Ign 1 feed
• Ign 1 fuse 10a
• Ign 3 input
• Inadv pwr
• Inst panel lp
• Int lp sw
• Interior lights system
• Key cyl sw
• Key reminder
• Key-in ignition switch
• Lamp relay
• Led dim
• Lf dr sw
• Liftgate ajar
• Lock coil
• Lp rly coil
• Lt turn input
• Nca
• Park brake switch
• Passlock sig
• Photocell
• Pk lp rly
• Pk lps feed
• Pnk
• Power distribution system
• Power distribution system (rap)
• Prk bk sw
• Rfa link
• Rt turn input
• Seat belt sw
• Sensor rtn
• Serial data
• Sp203
• Tan
• Tbc fuse 10a
• Tow/haul sw
• Tow/haul switch
• Unlock coil
• Vss
• Warning system
• Warnings system
• Wheel pos

COMPUTER DATA LINES

Computer Data Lines for GMC Sierra 2000 1500

List of elements for Computer Data Lines for GMC Sierra 2000 1500:

• (not used)
• (under driver's seat) inflatable restraint sensing & diagnostic module
• 4.3l
• A12
• All other gas
• Automatic transfer case control module (left side of dash, above headlight switch)
• Body control module (on lower left side of dash, below steering column)
• Body wiring harness junction block (under left side of dash)
• C11
• Cellular phone ready wiring
• Cigar fuse 15a
• Data link connector (dlc) (under left side of dash, below steering column)
• Electronic brake control module (ebcm) (on left side of the inner frame)
• Engine wiring harness junction block (on left side of engine compt)
• G117 (right rear of of engine)
• G200 (upper left kick panel)
• Hot at all times
• Hvac control module
• Instrument cluster
• Sp205 (left side of dash)
• Splice pack sp203
• Suspension control module (rear of right rear wheelwell)
• Vehicle control module (vcm)/ powertrain control module (pcm) (left front of engine compt)

CRUISE CONTROL

4.3L

4.3L VIN W, Cruise Control Wiring Diagram for GMC Sierra 2000 1500

List of elements for 4.3L VIN W, Cruise Control Wiring Diagram for GMC Sierra 2000 1500:

• (left side of engine compt near battery)
• (left side of engine compt, near battery) engine wiring harness junction block
• (under left side a/t of dash)
• A/t
• A12
• A13
• A14
• A15
• Body wiring harn junction block
• Body wiring harn junction block (under left side of dash)
• Body wiring harness junction block
• Brake fuse 10a
• C1 b7
• Clutch pedal position switch (top of clutch pedal)
• Clutch sw input
• Cruise control module (left rear of engine compt, on firewall)
• Cruise control switch
• Cruise engage input
• Cruise engage out
• Cruise fuse 10a
• Cruise on input
• D11
• Engine wiring harness junction block
• Engine wiring harness junction block (left side of engine compt near battery)
• Exterior lights system
• F11
• Fuse block (on lower left side of dash)
• G117 (right rear of engine)
• Ground
• Hot at all times
• Hot in run
• Ignition
• Inst cluster systems
• M/t
• Nca
• Off
• Resume/accel
• Resume/accel sig
• Set/coast
• Set/coast sig
• Sound systems
• Speed sensor input
• Speed sensor output
• Stop lps fuse 20a
• Stoplamp sw input
• Tcc/stoplamp switch (top of brake pedal)
• Vcm/pcm (left front of engine compt)
• Vehicle speed sensor (vss) (2wd: left side of transmission) (4wd: left side of transfer case)
• Vss high
• Vss low

4.8L

4.8L VIN V, Cruise Control Wiring Diagram for GMC Sierra 2000 1500

List of elements for 4.8L VIN V, Cruise Control Wiring Diagram for GMC Sierra 2000 1500:

• 5 volt ref
• A12
• A13
• A14
• A15
• Accelerator pedal position sensor (above accelerator pedal)
• Act cntrl
• App sens
• App sens 1
• App sens 2
• App sens 3
• App sense
• C1 d11
• C2 a10
• Clutch pedal position switch (top of clutch pedal)
• Clutch sw input
• Cruise control switch
• Cruise fuse 10a
• Cruise req
• Ect fuse 15a
• Engine compt)
• Engine wiring harness junction block (left side of engine compt, near battery)
• F12
• Fuse block (on lower left side of dash)
• G117 (right rear of engine)
• Ground
• Hot at all times
• Hot in run & start
• Hot in run or start
• Ign
• Nca
• Off
• Pnk
• Powertrain control module (left front of engine compt)
• R/a input
• Resume/accel
• S/c input
• S103
• Sens 1 grd
• Sens 1 rt
• Sens 2 grd
• Sens 2 rt
• Sens 3 grd
• Sens 3 rt
• Serial data
• Set/coast
• Stop lps fuse 20a
• Stoplamp switch (on top of brake pedal bracket)
• Stp lp in
• Tan
• Throttle actuator control (tac) module (near front of engine compt)
• Throttle actuator control motor (near front of
• Throttle position sensor (dual track) (near front of engine compartment)
• Tp sens 1
• Tp sens 2
• Veh stop fuse 10a
• Vehicle speed sensor (vss) (2wd: left rear side of transmission) (4wd: left rear side of transfer case)
• Vehicle speed sensor adapter (4 wd) (on left side of transmission)
• Vss high
• Vss low

5.3L

5.3L VIN T, Cruise Control Wiring Diagram for GMC Sierra 2000 1500

List of elements for 5.3L VIN T, Cruise Control Wiring Diagram for GMC Sierra 2000 1500:

• 5 volt ref
• A12
• A13
• A14
• A15
• Accelerator pedal position sensor (above accelerator pedal)
• Act cntrl
• App sens
• App sens 1
• App sens 2
• App sens 3
• App sense
• C1 d11
• C2 a10
• Clutch pedal position switch (top of clutch pedal)
• Clutch sw input
• Cruise control switch
• Cruise fuse 10a
• Cruise req
• Ect fuse 15a
• Engine compt)
• Engine wiring harness junction block (left side of engine compt, near battery)
• F12
• Fuse block (on lower left side of dash)
• G117 (right rear of engine)
• Ground
• Hot at all times
• Hot in run & start
• Hot in run or start
• Ign
• Nca
• Off
• Pnk
• Powertrain control module (left front of engine compt)
• R/a input
• Resume/accel
• S/c input
• S103
• Sens 1 grd
• Sens 1 rt
• Sens 2 grd
• Sens 2 rt
• Sens 3 grd
• Sens 3 rt
• Serial data
• Set/coast
• Stop lps fuse 20a
• Stoplamp switch (on top of brake pedal bracket)
• Stp lp in
• Tan
• Throttle actuator control (tac) module (near front of engine compt)
• Throttle actuator control motor (near front of
• Throttle position sensor (dual track) (near front of engine compartment)
• Tp sens 1
• Tp sens 2
• Veh stop fuse 10a
• Vehicle speed sensor (vss) (2wd: left rear side of transmission) (4wd: left rear side of transfer case)
• Vehicle speed sensor adapter (4 wd) (on left side of transmission)
• Vss high
• Vss low

DEFOGGERS

Defogger Wiring Diagram for GMC Sierra 2000 1500

List of elements for Defogger Wiring Diagram for GMC Sierra 2000 1500:

• (base)
• (right "b" pillar) g305
• (uplevel)
• (upper right kick panel) g203
• A c1
• A c2
• C c1
• D9 c1
• F3 c1
• Fuse block (on lower left side of dash)
• G200
• Ground
• Hot at all times
• Hot in run
• Hot in run & start
• Hvac 1 fuse 10a
• Hvac control module (in center of dash, under radio)
• Ign
• Ign fuse 10a
• Ind
• K c1
• Rear window defogger grid
• Rear window defogger relay
• Relay ctrl
• Rr defog fuse 30a
• Splice pack sp203 (upper left kick panel)
• Underhood junction block (at left side of engine compartment, near battery)

Heated Mirrors Wiring Diagram for GMC Sierra 2000 1500

List of elements for Heated Mirrors Wiring Diagram for GMC Sierra 2000 1500:

• Base
• Body junction block (under left side of dash, near kick panel)
• C c7
• C1 c
• C1 f2
• D2 c1
• D9 c1
• Defog request
• Defogger switch/ timer
• Driver outside rearview mirror
• Driver window/ door lock switch
• F c5
• F3 c1
• Fuse block (on lower left side of dash)
• G200 (upper left kick panel)
• G203 (upper right kick panel)
• Ground
• Ground distribution system
• Hot at all times
• Hot in run
• Hot in run & start
• Htd mir fuse 10a
• Hvac 1 fuse 10a
• Hvac control module (in center of dash, under radio)
• I/p junction block (on lower right side of dash)
• Ign 3
• Ign e fuse 10a
• Ind
• K c1
• M c1
• Nca
• Passenger outside rearview mirror
• Passenger window/ door lock switch
• Rear window defogger relay
• Relay ctrl
• Splice pack 203
• Underhood junction block (at left side of engine compartment, near battery)
• Uplevel

ELECTRONIC POWER STEERING

Electronic Power Steering Wiring Diagram, with RTD for GMC Sierra 2000 1500

List of elements for Electronic Power Steering Wiring Diagram, with RTD for GMC Sierra 2000 1500:

• 1995 vftc c
• 5v reference
• A10
• Battery
• Body computer system
• Body wiring harness junction block (under left side of dash)
• Computer data lines system
• Engine wiring harness junction block (left side of engine compt, near battery)
• Evo actuator (part of power steering pump)
• Evo feed
• Evo return
• Fuse 30a
• G998 (rear corner of right rear window)
• Ground
• Hot at all times
• Hot in run
• I/p fuse block (on lower left side of dash)
• I/p wiring harness junction block (lower right side of dash)
• Ign 3 fuse 10a
• Ignition
• Instrument cluster system
• Low reference
• Nca
• Power distribution system
• Powertrain control module (on left front of engine compartment)
• Rtd
• S112
• Serial data
• Sp410
• Steering hand wheel position/speed sensor (near base of steering column)
• Suspension control module (rear of right wheelwell)
• Track 1 input
• Track 2 input
• Vss input

Electronic Power Steering Wiring Diagram, without RTD for GMC Sierra 2000 1500

List of elements for Electronic Power Steering Wiring Diagram, without RTD for GMC Sierra 2000 1500:

• 1995 vftc c
• 5 volt ref
• A12
• A4 c1
• Anti-theft system
• Battery
• Body control module (in center console)
• Body wiring harness junction block (under left side of dash)
• Computer data lines system
• Cruise fuse 10a
• E9 c1
• Engine wiring harness junction block (left side of engine compt, near battery)
• Evo actuator (part of power steering pump)
• Evo high
• Evo low
• F10 c1
• G200 (upper left kick panel)
• Ground
• Hot at all times
• Hot in run
• Hot in run & start
• I/p fuse block (on lower left side of dash)
• Ign 1 fuse 10a
• Ignition
• Pnk
• Return
• Serial data
• Signal
• Sp203
• Steering handwheel position/speed sensor (on steering column, near firewall)
• Tbc fuse 10a

ELECTRONIC SUSPENSION

Electronic Suspension Wiring Diagram for GMC Sierra 2000 1500

List of elements for Electronic Suspension Wiring Diagram for GMC Sierra 2000 1500:

• Body wiring harness junction block (left side of dash, near kick panel)
• Dimming control
• E11
• Engine wiring harness junction block (left side of engine compt near battery)
• Firm
• Fuse block (on lower left side of dash)
• G200
• G415 (on spare tire hoist bracket)
• G416 (near left rear body mount)
• Hot in run or start
• Illum
• Indicator
• Interior lights system
• Left front shock solenoid valve (part of left front shock absorber)
• Left rear shock solenoid valve (part of left rear shock absorber)
• Off
• Pnk
• Right front shock solenoid valve (part of right front shock absorber)
• Right rear shock solenoid valve (part of right rear shock absorber)
• Selectable ride switch
• Seo ign fuse 10a
• Sp203 (upper left kick panel)

ENGINE PERFORMANCE

4.3L

4.3L VIN W, Engine Performance Wiring Diagrams (1 of 4) for GMC Sierra 2000 1500

List of elements for 4.3L VIN W, Engine Performance Wiring Diagrams (1 of 4) for GMC Sierra 2000 1500:

• (attached to right rear of throttle body)
• (left rear of engine)
• (on bottom front of engine near crank pulley) crankshaft position sensor
• (on right front side of fuel tank) evaporative emissions canister vent valve
• (top right rear of engine) evaporative emissions (evap) canister purge valve
• 1-2 shift sol ctrl
• 2-3 shift sol ctrl
• 3-2 ctrl sol ctrl
• B1 c2
• Cam posit sens rtn
• Cam posit sens sig
• Camshaft position sensor (inside distributor)
• Crank posit sens rtn
• Crank posit sens sig
• Ect sens input
• Egr posit input
• Electronic brake control module (ebcm) (on left side of inner frame)
• Engine wiring harness junction block
• Evap
• G114
• G117 (right rear of engine)
• Heated oxygen sensor (ho2s) bank 1 sensor 1 (in left exhaust pipe, before catalytic converter)
• Heated oxygen sensor (ho2s) bank 2 sensor 1 (in right exhaust pipe, before catalytic converter)
• Heated oxygen sensor (ho2s) bank 2 sensor 2 (in right exhaust pipe, after catalytic converter)
• Ho2s sens hi
• Ho2s sens lo
• Hot in run or start
• Iat sens sig
• Idle air control (iac) valve
• Idle air ctrl (iac) a hi
• Idle air ctrl (iac) b lo
• Ign feed
• Inj 1 ctrl
• Inj 2 ctrl
• Inj 3 ctrl
• Inj 4 ctrl
• Inj 5 ctrl
• Inj 6 ctrl
• Instrument cluster system (tachometer)
• Knock sens sig
• Knock sensor (on rear of engine block)
• Map sens input
• Mass air flow sens sig
• Nca
• O2a fuse 15a
• O2b fuse 15a
• Pnk
• Purge valve
• S103
• S104
• Sair pump rly
• Sens rtn
• Sens sig
• Tach out
• Tan
• Tcc on/off sol ctrl
• Tcc pwm sol ctrl
• Throttle posit sens
• Trans temp sens sig
• Vehicle control module (vcm) (on left front of engine compartment)
• Vehicle spd output sig
• Vehicle speed sensor (left rear side of transmission)
• Vehicle speed sensor shield
• Vss input
• Vss rtn
• Vss signal

4.3L VIN W, Engine Performance Wiring Diagrams (2 of 4) for GMC Sierra 2000 1500

List of elements for 4.3L VIN W, Engine Performance Wiring Diagrams (2 of 4) for GMC Sierra 2000 1500:

• 1-2 shift sol
• 2-3 shift sol
• 3-2 control sol
• Automatic transmission
• B6 c3
• C ground
• C10
• C12
• D ign
• D10
• E maf sig
• E12
• E3 c2
• Eng1 fuse 10a
• Engine wiring harness junction block
• Exhaust gas recirculation valve (egr) (top front of engine, near thermostat housing)
• Fuel inj 1
• Fuel inj 2
• Fuel inj 3
• Fuel inj 4
• Fuel inj 5
• Fuel inj 6
• G117 (right rear of engine)
• Heated oxygen sensor (ho2s) bank 1 sensor 2 (in left exhaust pipe, after catalytic converter)
• Hot in run or start
• Iat sensor
• Inja fuse 15a
• Injb fuse 15a
• Mass airflow sensor (in air intake duct)
• Nca
• Pnk
• Pnk b
• Pnk d
• Pnk e
• Pnk h
• Pnk j
• Pnk l
• Pressure control solenoid valve
• Red
• S103
• Tan
• Tcc on/off sol
• Tcc pwm sol
• Transmission fluid temperature (tft) sensor (internal)

4.3L VIN W, Engine Performance Wiring Diagrams (3 of 4) for GMC Sierra 2000 1500

List of elements for 4.3L VIN W, Engine Performance Wiring Diagrams (3 of 4) for GMC Sierra 2000 1500:

• (in engine harn)
• (in fuel tank) fuel tank pressure sensor
• (left rear of engine)
• (right front of engine)
• 5v ref
• Air maxi fuse 30a
• Body wiring harness junction c1 block
• Engine coolant level switch (in coolant reservoir)
• Engine coolant temperature sensor (left rear side of cylinder head)
• Engine oil level switch (right side of oil pan)
• Engine wiring harness junction block
• Front axle actuator/ switch (center right side of axle housing)
• Fuse block
• G114
• G114 (left rear of engine)
• G119
• Hot at all times
• Hot in run or start
• Ign0 fuse 10a
• Ign1 fuse 10a
• Igne fuse 10a
• Instrument cluster
• Manifold absolute pressure (map) sensor (top right of engine, near fuel injectors)
• Map
• Pnk
• Red
• Red a
• Ref lo
• S102
• S104
• S105
• S106 (in engine harn)
• S107
• S108
• Secondary air injection pump relay (in engine wiring harness junction block)
• Secondary air injection reaction pump (right rear of engine compt)
• Secondary air injection reaction valve solenoid (right rear of engine compt)
• Service engine soon indicator
• Temp
• Throttle position (tp) sensor (on throttle body assembly)

4.3L VIN W, Engine Performance Wiring Diagrams (4 of 4) for GMC Sierra 2000 1500

List of elements for 4.3L VIN W, Engine Performance Wiring Diagrams (4 of 4) for GMC Sierra 2000 1500:

• (left frame rail near body mount)
• (right rear of engine)
• 12v battery fused
• 4wd fuse 15a
• 4wd low ind sig
• 5v ref voltage
• 5v return
• A/c comp rly ctrl
• A/c rec sw
• A/c request signal
• A/c system
• Automatic transfer case control module (above headlight switch)
• Body control module (below steering column)
• Body wiring harness junction block
• Brake fuse 10a
• Brake switch input
• C11
• Check eng lp ind out
• Clutch pedal position switch (top of clutch pedal bracket)
• Coil wire
• Comp cycling sw
• Coolant lev
• Cpp sw input
• Cruise control system
• Cruise control system, body computer system (vehicle speed signal)
• Cruise ctrl sig-eng
• Data link connector (below steering column)
• Distributor
• Ecm1 fuse 10a
• Ecmb fuse 20a
• Egr valve cntrl
• Engine wiring harness junction block
• Est output sig
• Evap sol purge ctrl
• Four whl dr sig lo
• Fuel lev sensor
• Fuel pump relay
• Fuel pump rly ctrl
• Fuel pump/ level sensor (in fuel tank)
• Fuse block
• Fused output
• G117
• G119 (right front of engine)
• G402
• Gen term l
• Ground
• Hot at all times
• Hot in run & start
• Ign
• Ign timing sig.
• Ignition coil (top right rear of engine)
• Ignition control module (right side, top of engine)
• Ignition feed
• Manual 4wd
• Oil level signal
• Park/neutral position switch (left side of transmission)
• Pnk
• Pnk a
• Power
• Press ctrl sol hi
• Press ctrl sol lo
• Prndl a
• Prndl b
• Prndl c
• Prndl p
• Recirc door sig
• Red
• S102
• S103
• S199
• Sensor ground
• Serial data
• Serial data sig
• Sp205 (behind headlamp switch)
• Starting/char- ging system
• Stoplight switch (top of brake pedal bracket)
• Tach. sig.
• Trans press sig-bit 1
• Trans press sig-bit 2
• Trans press sig-bit 3
• Transfer case switch (on left front of transfer case)
• Vcm ground
• Vehicle control module (vcm) (on left front of engine compartment)
• Vss sig
• W/ atc

4.8L

4.8L VIN V, Engine Controls Wiring Diagram, Except Canadian Built (1 of 5) for GMC Sierra 2000 1500

List of elements for 4.8L VIN V, Engine Controls Wiring Diagram, Except Canadian Built (1 of 5) for GMC Sierra 2000 1500:

• (below steering column) data link connector
• (lower right rear of engine) crankshaft position sensor
• +5v
• 3-2 ss
• Anti-lock brake system
• Body control module (below steering column)
• Brk sw
• C10
• C11
• C12
• Ckp
• Cls 2 data
• Clutch sw
• Cmp
• Coolant lev
• D10
• E12
• Ecm1 fuse 10a
• Ecmb fuse 20a
• Ect sig
• Egr input
• Electronic suspension system
• Fuse block
• G117 (right rear of engine)
• Gnd
• Ho2s hi
• Ho2s lo
• Hot at all times
• Hot in run & start
• Ign
• Ign 0 fuse 10a
• Inj1
• Inj2
• Inj3
• Inj4
• Inj5
• Inj6
• Inj7
• Inj8
• Inja fuse 15a
• Injb fuse 15a
• Injectors
• Ks signal
• Lift/dive sig
• O2a fuse 15a
• O2b fuse 15a
• Oil lev
• Pnk
• Pnk b
• Powertrain control module (left front of engine compt)
• Prnd a
• Prnd b
• Prnd p
• Range b
• Range c
• Red
• Ref low
• Req torque
• S103
• Sens gnd
• Sens rtn
• Serial data
• Sp205 (behind headlamp switch)
• Tan
• Underhood junction block

4.8L VIN V, Engine Controls Wiring Diagram, Except Canadian Built (2 of 5) for GMC Sierra 2000 1500

List of elements for 4.8L VIN V, Engine Controls Wiring Diagram, Except Canadian Built (2 of 5) for GMC Sierra 2000 1500:

• (left front of engine)
• (left rear of engine)
• (left rear of engine) g114
• (not used)
• Air maxi fuse 30a c7
• Ecm b fuse 20a
• Engine coolant level switch (in coolant reservoir)
• Engine coolant temperature sensor (left front of cylinder head)
• Engine oil level switch (right side of oil pan)
• Fuel pump relay
• Fuel pump/ level sensor (in fuel tank)
• G104
• G110
• G114 (left rear of engine)
• G117 (right rear of engine)
• G402 (left frame body mount bracket)
• Heated oxygen sensor (bank 1 sensor 1) (left exh pipe before converter)
• Heated oxygen sensor (bank 1 sensor 2) (left exh pipe after converter)
• Heated oxygen sensor (bank 2 sensor 1) (right exh pipe before converter)
• Heated oxygen sensor (bank 2 sensor 2) (right exh pipe after converter)
• Hot at all times
• Hot in run & start
• Ign e fuse 10a c2
• Knock sensor 1 (under intake manifold)
• Knock sensor 2 (under intake manifold)
• Nca
• Park/neutral position switch (left side of transmission)
• Pnk
• Red
• S103
• S104
• S104 (in engine harness)
• S108
• Secondary air injection reaction pump (right rear of engine compt)
• Secondary air injection reaction relay (right rear of engine compartment)
• Secondary air injection reaction solenoid (right rear of engine compt)
• Tan
• Throttle position sensor (w/o electronic throttle control) (on throttle body assy)
• Under- hood junction block

4.8L VIN V, Engine Controls Wiring Diagram, Except Canadian Built (3 of 5) for GMC Sierra 2000 1500

List of elements for 4.8L VIN V, Engine Controls Wiring Diagram, Except Canadian Built (3 of 5) for GMC Sierra 2000 1500:

• 1-2 sol
• 2-3 sol
• 3-2 sol
• A/t fluid pressure manual valve position switch
• Automatic transaxle
• Body junction block
• Brake fuse 10a
• Camshaft position sensor (top center rear of engine)
• Clutch pedal position switch (top of pedal bracket)
• Evap canister purge valve (top right rear of engine)
• Evap canister vent valve (left front side of fuel tank)
• Exhaust gas recirculation valve (top right front of engine)
• F12
• Fuel tank pressure sensor (in fuel tank)
• Fuse block
• Hot in run
• Hot in run & start
• Manifold absolute pressure sensor (top rear of engine)
• N pnk
• P red
• Pc sol valve
• Pnk
• Pnk a
• Pnk b
• Red
• Red e
• Red/
• Rev
• Stop lps fuse 20a
• Stop- lamp switch (top of brake pedal bracket)
• Tan
• Tcc pwm sol
• Tcc sol
• Tft sensor
• Vehicle speed sensor (left rear of transmission)
• Vss adapter (4wd) (left side of trans)

4.8L VIN V, Engine Controls Wiring Diagram, Except Canadian Built (4 of 5) for GMC Sierra 2000 1500

List of elements for 4.8L VIN V, Engine Controls Wiring Diagram, Except Canadian Built (4 of 5) for GMC Sierra 2000 1500:

• A10
• Accelerator pedal position sensor (w/ electronic throttle control)
• Act cntrl
• App sens
• App sens 1
• App sens 2
• App sens 3
• App sense
• Cruise control system
• Cruise req
• D11
• Data
• Ect fuse 15a
• Fuse block
• G117 (right rear of engine)
• Gnd
• Ground
• Hot in run & start
• Hot in run or start
• Iat sensor
• Ign
• Ign0 fuse 10a
• Mass airflow sensor (in air intake duct)
• Pnk
• Pnk d
• R/a input
• Red
• S/c input
• S103
• Sens 1 grd
• Sens 1 rt
• Sens 2 grd
• Sens 2 rt
• Sens 3 grd
• Sens 3 rt
• Sens grd
• Signal
• Stp lp in
• Tan
• Tan b
• Throttle actuator control (tac) module (w/ electronic throttle control) (in left rear of engine compt)
• Throttle actuator control motor (w/ electronic throttle control) (on throttle body)
• Throttle position sensor (dual track) (w/ electronic throttle control) (on throttle body)
• Tp sens 1
• Tp sens 2
• Underhood junction block
• Veh stop fuse 10a

4.8L VIN V, Engine Controls Wiring Diagram, Except Canadian Built (5 of 5) for GMC Sierra 2000 1500

List of elements for 4.8L VIN V, Engine Controls Wiring Diagram, Except Canadian Built (5 of 5) for GMC Sierra 2000 1500:

• (in engine harness)
• (left front of engine) g110
• (left rear of engine) g114
• 1-2 ss
• 2-3 ss
• 4wd low
• A/c clu
• A/c req
• A/c system
• Air pump
• Anti-lock brake system
• Anti-lock brake system (speed signal)
• Automatic transfer case control module (above c3 headlight switch)
• Cruise control system
• Cruise eng
• Ctrl
• Cyc sw in
• Delivered torq
• Egr ctrl
• Egr gnd
• Eng1 fuse 10a
• Evap canp
• Evap vent
• Front axle switch (right side of center on axle housing)
• Frt axle sw
• Fuel lev
• Fuel pmp
• Fuel sig ctrl
• Fuse block
• G117 (right rear of engine)
• Gen f
• Gen l
• Gnd
• Hot in run & start
• Iac coil hi
• Iac coil lo
• Iat sig
• Idle air control valve (top of throttle body)
• Ign
• Ign ctrl
• Ign feed
• Ign1 fuse 10a
• Ignition coils
• Instrument cluster systems (speed signal)
• Instrument panel cluster
• Maf sig
• Malfunction indicator lamp
• Map sig
• Mil ctrl
• Nca
• Nca nca
• Pc sol hi
• Pc sol lo
• Pnk
• Pnk d
• Powertrain control module (left front of engine compt)
• Prnd c
• Recirc door
• Recirc sw
• Red
• Red c
• Ref lo
• Ref low
• Rpm out
• S103
• S151
• S152
• S153
• S154
• S157
• Sens gnd
• Spark plug
• Starting/charging system
• Tan
• Tcc pwm
• Tcc sol
• Tft sens sig
• Tp sig
• Trans rng a
• Transfer case switch (left front of transaxle case)
• Under- hood junction block
• Vss high
• Vss low
• Vss out
• W/ atc
• W/ manual 4wd

4.8L VIN V, Engine Performance Wiring Diagrams, Canadian Built (1 of 5) for GMC Sierra 2000 1500

List of elements for 4.8L VIN V, Engine Performance Wiring Diagrams, Canadian Built (1 of 5) for GMC Sierra 2000 1500:

• (below steering column) data link connector
• (lower right rear of engine) crankshaft position sensor
• +5v
• 3-2 ss
• Anti-lock brake system
• Body control module (below steering column)
• Brk sw
• C10
• C11
• C12
• Ckp
• Cls 2 data
• Clutch sw
• Cmp
• Coolant lev
• D10
• E12
• Ecm1 fuse 10a
• Ecmb fuse 20a
• Ect sig
• Egr input
• Electronic suspension system
• Fuse block
• G117 (right rear of engine)
• Gnd
• Ho2s hi
• Ho2s lo
• Hot at all times
• Hot in run & start
• Ign
• Ign 0 fuse 10a
• Inj1
• Inj2
• Inj3
• Inj4
• Inj5
• Inj6
• Inj7
• Inj8
• Inja fuse 15a
• Injb fuse 15a
• Injectors
• Ks signal
• Lift/dive sig
• O2a fuse 15a
• O2b fuse 15a
• Oil lev
• Pnk
• Pnk b
• Powertrain control module (left front of engine compt)
• Prnd a
• Prnd b
• Prnd p
• Range b
• Range c
• Red
• Ref low
• Req torque
• S103
• Sens gnd
• Sens rtn
• Serial data
• Sp205 (behind headlamp switch)
• Tan
• Under- hood junction block

4.8L VIN V, Engine Performance Wiring Diagrams, Canadian Built (2 of 5) for GMC Sierra 2000 1500

List of elements for 4.8L VIN V, Engine Performance Wiring Diagrams, Canadian Built (2 of 5) for GMC Sierra 2000 1500:

• (eng harness) s114
• (left front of engine)
• (left rear of engine)
• (left rear of engine) g114
• (not used)
• Air maxi fuse 30a c7
• Ecm b fuse 20a
• Engine coolant level switch (in coolant reservoir)
• Engine coolant temperature sensor (left front of cylinder head)
• Engine oil level switch (right side of oil pan)
• Fuel pump relay
• Fuel pump/ level sensor (in fuel tank)
• G104
• G110
• G114 (left rear of engine)
• G117 (right rear of engine)
• G402 (left frame body mount bracket)
• Heated oxygen sensor (bank 1 sensor 1) (left exh pipe before converter)
• Heated oxygen sensor (bank 1 sensor 2) (left exh pipe after converter)
• Heated oxygen sensor (bank 2 sensor 1) (right exh pipe before converter)
• Heated oxygen sensor (bank 2 sensor 2) (right exh pipe after converter)
• Hot at all times
• Hot in run & start
• Ign e fuse 10a c2
• Knock sensor 1 (under intake manifold)
• Knock sensor 2 (under intake manifold)
• Nca
• Park/neutral position switch (left side of transmission)
• Pnk
• Red
• S103
• S104
• S104 (in engine harness)
• S108
• S113 (eng harness)
• Secondary air injection reaction pump (right rear of engine compt)
• Secondary air injection reaction relay (right rear of engine compartment)
• Secondary air injection reaction solenoid (right rear of engine compt)
• Tan
• Throttle position sensor (w/o electronic throttle control) (on throttle body assy)
• Under- hood junction block

4.8L VIN V, Engine Performance Wiring Diagrams, Canadian Built (3 of 5) for GMC Sierra 2000 1500

List of elements for 4.8L VIN V, Engine Performance Wiring Diagrams, Canadian Built (3 of 5) for GMC Sierra 2000 1500:

• 1-2 sol
• 2-3 sol
• 3-2 sol
• A/t fluid pressure manual valve position switch
• Automatic transaxle
• Body junction block
• Brake fuse 10a
• Camshaft position sensor (top center rear of engine)
• Clutch pedal position switch (top of pedal bracket)
• Evap canister purge valve (top right rear of engine)
• Evap canister vent valve (left front side of fuel tank)
• Exhaust gas recirculation valve (top right front of engine)
• F12
• Fuel tank pressure sensor (in fuel tank)
• Fuse block
• Hot in run
• Hot in run & start
• Manifold absolute pressure sensor (top rear of engine)
• N pnk
• P red
• Pc sol valve
• Pnk
• Pnk a
• Pnk b
• Red
• Red e
• Red/
• Rev
• Stop lps fuse 20a
• Stop- lamp switch (top of brake pedal bracket)
• Tan
• Tcc pwm sol
• Tcc sol
• Tft sensor
• Vehicle speed sensor (left rear of transmission)
• Vss adapter (4wd) (left side of trans)

4.8L VIN V, Engine Performance Wiring Diagrams, Canadian Built (4 of 5) for GMC Sierra 2000 1500

List of elements for 4.8L VIN V, Engine Performance Wiring Diagrams, Canadian Built (4 of 5) for GMC Sierra 2000 1500:

• A10
• Accelerator pedal position sensor (w/ electronic throttle control)
• Act cntrl
• App sens
• App sens 1
• App sens 2
• App sens 3
• App sense
• Cruise control system
• Cruise req
• D11
• Data
• Ect fuse 15a
• Fuse block
• G117 (right rear of engine)
• Gnd
• Ground
• Hot in run & start
• Hot in run or start
• Iat sensor
• Ign
• Ign0 fuse 10a
• Mass airflow sensor (in air intake duct)
• Pnk
• Pnk d
• R/a input
• Red
• S/c input
• S103
• Sens 1 grd
• Sens 1 rt
• Sens 2 grd
• Sens 2 rt
• Sens 3 grd
• Sens 3 rt
• Sens grd
• Signal
• Stp lp in
• Tan
• Tan b
• Throttle actuator control (tac) module (w/ electronic throttle control) (in left rear of engine compt)
• Throttle actuator control motor (w/ electronic throttle control) (on throttle body)
• Throttle position sensor (dual track) (w/ electronic throttle control) (on throttle body)
• Tp sens 1
• Tp sens 2
• Under- hood junction block
• Veh stop fuse 10a

4.8L VIN V, Engine Performance Wiring Diagrams, Canadian Built (5 of 5) for GMC Sierra 2000 1500

List of elements for 4.8L VIN V, Engine Performance Wiring Diagrams, Canadian Built (5 of 5) for GMC Sierra 2000 1500:

• (in engine harness)
• (left front of engine) g110
• (left rear of engine) g114
• 1-2 ss
• 2-3 ss
• 4wd low
• A/c clu
• A/c req
• A/c system
• Air pump
• Anti-lock brake system
• Anti-lock brake system (speed signal)
• Automatic transfer case control module (above c3 headlight switch)
• Cruise control system
• Cruise eng
• Ctrl
• Cyc sw in
• Delivered torq
• Egr ctrl
• Egr gnd
• Eng1 fuse 10a
• Evap canp
• Evap vent
• Front axle switch (right side of center on axle housing)
• Frt axle sw
• Fuel lev
• Fuel pmp
• Fuel sig ctrl
• Fuse block
• G117 (right rear of engine)
• Gen f
• Gen l
• Gnd
• Hot in run & start
• Iac coil hi
• Iac coil lo
• Iat sig
• Idle air control valve (top of throttle body)
• Ign
• Ign ctrl
• Ign feed
• Ign1 fuse 10a
• Ignition coils
• Instrument cluster systems (speed signal)
• Instrument panel cluster
• Maf sig
• Malfunction indicator lamp
• Map sig
• Mil ctrl
• Nca
• Nca nca
• Pc sol hi
• Pc sol lo
• Pnk
• Pnk d
• Powertrain control module (left front of engine compt)
• Prnd c
• Recirc door
• Recirc sw
• Red
• Red c
• Ref lo
• Ref low
• Rpm out
• S103
• S151
• S152
• S153
• S154
• S157
• Sens gnd
• Spark plug
• Starting/charging system
• Tan
• Tcc pwm
• Tcc sol
• Tft sens sig
• Tp sig
• Trans rng a
• Transfer case switch (left front of transaxle case)
• Under- hood junction block
• Vss high
• Vss low
• Vss out
• W/ atc
• W/ manual 4wd

5.3L

5.3L VIN T, Engine Controls Wiring Diagram, Except Canadian Built (1 of 5) for GMC Sierra 2000 1500

List of elements for 5.3L VIN T, Engine Controls Wiring Diagram, Except Canadian Built (1 of 5) for GMC Sierra 2000 1500:

• (below steering column) data link connector
• (lower right rear of engine) crankshaft position sensor
• +5v
• 3-2 ss
• Anti-lock brake system
• Body control module (below steering column)
• Brk sw
• C10
• C11
• C12
• Ckp
• Cls 2 data
• Clutch sw
• Cmp
• Coolant lev
• D10
• E12
• Ecm1 fuse 10a
• Ecmb fuse 20a
• Ect sig
• Egr input
• Electronic suspension system
• Fuse block
• G117 (right rear of engine)
• Gnd
• Ho2s hi
• Ho2s lo
• Hot at all times
• Hot in run & start
• Ign
• Ign 0 fuse 10a
• Inj1
• Inj2
• Inj3
• Inj4
• Inj5
• Inj6
• Inj7
• Inj8
• Inja fuse 15a
• Injb fuse 15a
• Injectors
• Ks signal
• Lift/dive sig
• O2a fuse 15a
• O2b fuse 15a
• Oil lev
• Pnk
• Pnk b
• Powertrain control module (left front of engine compt)
• Prnd a
• Prnd b
• Prnd p
• Range b
• Range c
• Red
• Ref low
• Req torque
• S103
• Sens gnd
• Sens rtn
• Serial data
• Sp205 (behind headlamp switch)
• Tan
• Underhood junction block

5.3L VIN T, Engine Controls Wiring Diagram, Except Canadian Built (2 of 5) for GMC Sierra 2000 1500

List of elements for 5.3L VIN T, Engine Controls Wiring Diagram, Except Canadian Built (2 of 5) for GMC Sierra 2000 1500:

• (left front of engine)
• (left rear of engine)
• (left rear of engine) g114
• (not used)
• Air maxi fuse 30a c7
• Ecm b fuse 20a
• Engine coolant level switch (in coolant reservoir)
• Engine coolant temperature sensor (left front of cylinder head)
• Engine oil level switch (right side of oil pan)
• Fuel pump relay
• Fuel pump/ level sensor (in fuel tank)
• G104
• G110
• G114 (left rear of engine)
• G117 (right rear of engine)
• G402 (left frame body mount bracket)
• Heated oxygen sensor (bank 1 sensor 1) (left exh pipe before converter)
• Heated oxygen sensor (bank 1 sensor 2) (left exh pipe after converter)
• Heated oxygen sensor (bank 2 sensor 1) (right exh pipe before converter)
• Heated oxygen sensor (bank 2 sensor 2) (right exh pipe after converter)
• Hot at all times
• Hot in run & start
• Ign e fuse 10a c2
• Knock sensor 1 (under intake manifold)
• Knock sensor 2 (under intake manifold)
• Nca
• Park/neutral position switch (left side of transmission)
• Pnk
• Red
• S103
• S104
• S104 (in engine harness)
• S108
• Secondary air injection reaction pump (right rear of engine compt)
• Secondary air injection reaction relay (right rear of engine compartment)
• Secondary air injection reaction solenoid (right rear of engine compt)
• Tan
• Throttle position sensor (w/o electronic throttle control) (on throttle body assy)
• Under- hood junction block

5.3L VIN T, Engine Controls Wiring Diagram, Except Canadian Built (3 of 5) for GMC Sierra 2000 1500

List of elements for 5.3L VIN T, Engine Controls Wiring Diagram, Except Canadian Built (3 of 5) for GMC Sierra 2000 1500:

• 1-2 sol
• 2-3 sol
• 3-2 sol
• A/t fluid pressure manual valve position switch
• Automatic transaxle
• Body junction block
• Brake fuse 10a
• Camshaft position sensor (top center rear of engine)
• Clutch pedal position switch (top of pedal bracket)
• Evap canister purge valve (top right rear of engine)
• Evap canister vent valve (left front side of fuel tank)
• Exhaust gas recirculation valve (top right front of engine)
• F12
• Fuel tank pressure sensor (in fuel tank)
• Fuse block
• Hot in run
• Hot in run & start
• Manifold absolute pressure sensor (top rear of engine)
• N pnk
• P red
• Pc sol valve
• Pnk
• Pnk a
• Pnk b
• Red
• Red e
• Red/
• Rev
• Stop lps fuse 20a
• Stop- lamp switch (top of brake pedal bracket)
• Tan
• Tcc pwm sol
• Tcc sol
• Tft sensor
• Vehicle speed sensor (left rear of transmission)
• Vss adapter (4wd) (left side of trans)

5.3L VIN T, Engine Controls Wiring Diagram, Except Canadian Built (4 of 5) for GMC Sierra 2000 1500

List of elements for 5.3L VIN T, Engine Controls Wiring Diagram, Except Canadian Built (4 of 5) for GMC Sierra 2000 1500:

• A10
• Accelerator pedal position sensor (w/ electronic throttle control)
• Act cntrl
• App sens
• App sens 1
• App sens 2
• App sens 3
• App sense
• Cruise control system
• Cruise req
• D11
• Data
• Ect fuse 15a
• Fuse block
• G117 (right rear of engine)
• Gnd
• Ground
• Hot in run & start
• Hot in run or start
• Iat sensor
• Ign
• Ign0 fuse 10a
• Mass airflow sensor (in air intake duct)
• Pnk
• Pnk d
• R/a input
• Red
• S/c input
• S103
• Sens 1 grd
• Sens 1 rt
• Sens 2 grd
• Sens 2 rt
• Sens 3 grd
• Sens 3 rt
• Sens grd
• Signal
• Stp lp in
• Tan
• Tan b
• Throttle actuator control (tac) module (w/ electronic throttle control) (in left rear of engine compt)
• Throttle actuator control motor (w/ electronic throttle control) (on throttle body)
• Throttle position sensor (dual track) (w/ electronic throttle control) (on throttle body)
• Tp sens 1
• Tp sens 2
• Underhood junction block
• Veh stop fuse 10a

5.3L VIN T, Engine Controls Wiring Diagram, Except Canadian Built (5 of 5) for GMC Sierra 2000 1500

List of elements for 5.3L VIN T, Engine Controls Wiring Diagram, Except Canadian Built (5 of 5) for GMC Sierra 2000 1500:

• (in engine harness)
• (left front of engine) g110
• (left rear of engine) g114
• 1-2 ss
• 2-3 ss
• 4wd low
• A/c clu
• A/c req
• A/c system
• Air pump
• Anti-lock brake system
• Anti-lock brake system (speed signal)
• Automatic transfer case control module (above c3 headlight switch)
• Cruise control system
• Cruise eng
• Ctrl
• Cyc sw in
• Delivered torq
• Egr ctrl
• Egr gnd
• Eng1 fuse 10a
• Evap canp
• Evap vent
• Front axle switch (right side of center on axle housing)
• Frt axle sw
• Fuel lev
• Fuel pmp
• Fuel sig ctrl
• Fuse block
• G117 (right rear of engine)
• Gen f
• Gen l
• Gnd
• Hot in run & start
• Iac coil hi
• Iac coil lo
• Iat sig
• Idle air control valve (top of throttle body)
• Ign
• Ign ctrl
• Ign feed
• Ign1 fuse 10a
• Ignition coils
• Instrument cluster systems (speed signal)
• Instrument panel cluster
• Maf sig
• Malfunction indicator lamp
• Map sig
• Mil ctrl
• Nca
• Nca nca
• Pc sol hi
• Pc sol lo
• Pnk
• Pnk d
• Powertrain control module (left front of engine compt)
• Prnd c
• Recirc door
• Recirc sw
• Red
• Red c
• Ref lo
• Ref low
• Rpm out
• S103
• S151
• S152
• S153
• S154
• S157
• Sens gnd
• Spark plug
• Starting/charging system
• Tan
• Tcc pwm
• Tcc sol
• Tft sens sig
• Tp sig
• Trans rng a
• Transfer case switch (left front of transaxle case)
• Under- hood junction block
• Vss high
• Vss low
• Vss out
• W/ atc
• W/ manual 4wd

5.3L VIN T, Engine Performance Wiring Diagrams, Canadian Built (1 of 5) for GMC Sierra 2000 1500

List of elements for 5.3L VIN T, Engine Performance Wiring Diagrams, Canadian Built (1 of 5) for GMC Sierra 2000 1500:

• (below steering column) data link connector
• (lower right rear of engine) crankshaft position sensor
• +5v
• 3-2 ss
• Anti-lock brake system
• Body control module (below steering column)
• Brk sw
• C10
• C11
• C12
• Ckp
• Cls 2 data
• Clutch sw
• Cmp
• Coolant lev
• D10
• E12
• Ecm1 fuse 10a
• Ecmb fuse 20a
• Ect sig
• Egr input
• Electronic suspension system
• Fuse block
• G117 (right rear of engine)
• Gnd
• Ho2s hi
• Ho2s lo
• Hot at all times
• Hot in run & start
• Ign
• Ign 0 fuse 10a
• Inj1
• Inj2
• Inj3
• Inj4
• Inj5
• Inj6
• Inj7
• Inj8
• Inja fuse 15a
• Injb fuse 15a
• Injectors
• Ks signal
• Lift/dive sig
• O2a fuse 15a
• O2b fuse 15a
• Oil lev
• Pnk
• Pnk b
• Powertrain control module (left front of engine compt)
• Prnd a
• Prnd b
• Prnd p
• Range b
• Range c
• Red
• Ref low
• Req torque
• S103
• Sens gnd
• Sens rtn
• Serial data
• Sp205 (behind headlamp switch)
• Tan
• Under- hood junction block

5.3L VIN T, Engine Performance Wiring Diagrams, Canadian Built (2 of 5) for GMC Sierra 2000 1500

List of elements for 5.3L VIN T, Engine Performance Wiring Diagrams, Canadian Built (2 of 5) for GMC Sierra 2000 1500:

• (eng harness) s114
• (left front of engine)
• (left rear of engine)
• (left rear of engine) g114
• (not used)
• Air maxi fuse 30a c7
• Ecm b fuse 20a
• Engine coolant level switch (in coolant reservoir)
• Engine coolant temperature sensor (left front of cylinder head)
• Engine oil level switch (right side of oil pan)
• Fuel pump relay
• Fuel pump/ level sensor (in fuel tank)
• G104
• G110
• G114 (left rear of engine)
• G117 (right rear of engine)
• G402 (left frame body mount bracket)
• Heated oxygen sensor (bank 1 sensor 1) (left exh pipe before converter)
• Heated oxygen sensor (bank 1 sensor 2) (left exh pipe after converter)
• Heated oxygen sensor (bank 2 sensor 1) (right exh pipe before converter)
• Heated oxygen sensor (bank 2 sensor 2) (right exh pipe after converter)
• Hot at all times
• Hot in run & start
• Ign e fuse 10a c2
• Knock sensor 1 (under intake manifold)
• Knock sensor 2 (under intake manifold)
• Nca
• Park/neutral position switch (left side of transmission)
• Pnk
• Red
• S103
• S104
• S104 (in engine harness)
• S108
• S113 (eng harness)
• Secondary air injection reaction pump (right rear of engine compt)
• Secondary air injection reaction relay (right rear of engine compartment)
• Secondary air injection reaction solenoid (right rear of engine compt)
• Tan
• Throttle position sensor (w/o electronic throttle control) (on throttle body assy)
• Under- hood junction block

5.3L VIN T, Engine Performance Wiring Diagrams, Canadian Built (3 of 5) for GMC Sierra 2000 1500

List of elements for 5.3L VIN T, Engine Performance Wiring Diagrams, Canadian Built (3 of 5) for GMC Sierra 2000 1500:

• 1-2 sol
• 2-3 sol
• 3-2 sol
• A/t fluid pressure manual valve position switch
• Automatic transaxle
• Body junction block
• Brake fuse 10a
• Camshaft position sensor (top center rear of engine)
• Clutch pedal position switch (top of pedal bracket)
• Evap canister purge valve (top right rear of engine)
• Evap canister vent valve (left front side of fuel tank)
• Exhaust gas recirculation valve (top right front of engine)
• F12
• Fuel tank pressure sensor (in fuel tank)
• Fuse block
• Hot in run
• Hot in run & start
• Manifold absolute pressure sensor (top rear of engine)
• N pnk
• P red
• Pc sol valve
• Pnk
• Pnk a
• Pnk b
• Red
• Red e
• Red/
• Rev
• Stop lps fuse 20a
• Stop- lamp switch (top of brake pedal bracket)
• Tan
• Tcc pwm sol
• Tcc sol
• Tft sensor
• Vehicle speed sensor (left rear of transmission)
• Vss adapter (4wd) (left side of trans)

5.3L VIN T, Engine Performance Wiring Diagrams, Canadian Built (4 of 5) for GMC Sierra 2000 1500

List of elements for 5.3L VIN T, Engine Performance Wiring Diagrams, Canadian Built (4 of 5) for GMC Sierra 2000 1500:

• A10
• Accelerator pedal position sensor (w/ electronic throttle control)
• Act cntrl
• App sens
• App sens 1
• App sens 2
• App sens 3
• App sense
• Cruise control system
• Cruise req
• D11
• Data
• Ect fuse 15a
• Fuse block
• G117 (right rear of engine)
• Gnd
• Ground
• Hot in run & start
• Hot in run or start
• Iat sensor
• Ign
• Ign0 fuse 10a
• Mass airflow sensor (in air intake duct)
• Pnk
• Pnk d
• R/a input
• Red
• S/c input
• S103
• Sens 1 grd
• Sens 1 rt
• Sens 2 grd
• Sens 2 rt
• Sens 3 grd
• Sens 3 rt
• Sens grd
• Signal
• Stp lp in
• Tan
• Tan b
• Throttle actuator control (tac) module (w/ electronic throttle control) (in left rear of engine compt)
• Throttle actuator control motor (w/ electronic throttle control) (on throttle body)
• Throttle position sensor (dual track) (w/ electronic throttle control) (on throttle body)
• Tp sens 1
• Tp sens 2
• Under- hood junction block
• Veh stop fuse 10a

5.3L VIN T, Engine Performance Wiring Diagrams, Canadian Built (5 of 5) for GMC Sierra 2000 1500

List of elements for 5.3L VIN T, Engine Performance Wiring Diagrams, Canadian Built (5 of 5) for GMC Sierra 2000 1500:

• (in engine harness)
• (left front of engine) g110
• (left rear of engine) g114
• 1-2 ss
• 2-3 ss
• 4wd low
• A/c clu
• A/c req
• A/c system
• Air pump
• Anti-lock brake system
• Anti-lock brake system (speed signal)
• Automatic transfer case control module (above c3 headlight switch)
• Cruise control system
• Cruise eng
• Ctrl
• Cyc sw in
• Delivered torq
• Egr ctrl
• Egr gnd
• Eng1 fuse 10a
• Evap canp
• Evap vent
• Front axle switch (right side of center on axle housing)
• Frt axle sw
• Fuel lev
• Fuel pmp
• Fuel sig ctrl
• Fuse block
• G117 (right rear of engine)
• Gen f
• Gen l
• Gnd
• Hot in run & start
• Iac coil hi
• Iac coil lo
• Iat sig
• Idle air control valve (top of throttle body)
• Ign
• Ign ctrl
• Ign feed
• Ign1 fuse 10a
• Ignition coils
• Instrument cluster systems (speed signal)
• Instrument panel cluster
• Maf sig
• Malfunction indicator lamp
• Map sig
• Mil ctrl
• Nca
• Nca nca
• Pc sol hi
• Pc sol lo
• Pnk
• Pnk d
• Powertrain control module (left front of engine compt)
• Prnd c
• Recirc door
• Recirc sw
• Red
• Red c
• Ref lo
• Ref low
• Rpm out
• S103
• S151
• S152
• S153
• S154
• S157
• Sens gnd
• Spark plug
• Starting/charging system
• Tan
• Tcc pwm
• Tcc sol
• Tft sens sig
• Tp sig
• Trans rng a
• Transfer case switch (left front of transaxle case)
• Under- hood junction block
• Vss high
• Vss low
• Vss out
• W/ atc
• W/ manual 4wd

EXTERIOR LIGHTS

Backup Lamps Wiring Diagram for GMC Sierra 2000 1500

List of elements for Backup Lamps Wiring Diagram for GMC Sierra 2000 1500:

• (left side of transmission) back-up lamp switch
• A trailer connector (heavy duty)
• A/t
• B/u lp fuse 25a
• B10
• Back-up lamp switch (part of park/neutral position switch) (left side of transmission)
• Engine wiring harness junction block (left side of eng compt, near battery)
• G415 (on spare tire hoist bracket)
• Hot in run or start
• Left back-up lamp
• M/t
• Mirrors system (automatic day/night mirror)
• Pnk
• Rear lamps bussing block (front of rear bumber, on crossmember)
• Right back-up lamp
• Trlr b/u fuse 10a
• Veh b/u fuse 15a

Exterior Lamps Wiring Diagram for GMC Sierra 2000 1500

List of elements for Exterior Lamps Wiring Diagram for GMC Sierra 2000 1500:

• (at roof marker lamps) s200
• (left side of dash) body junction block
• (left side of dash) fuse block
• (left side of eng comt, near battery) underhood junction block
• (upper right kick panel)
• A c3
• A10
• A12
• A4 c1
• Auto
• B10
• Base
• Body control module (lower left side of dash)
• Body junction block (left side of dash)
• Bulbs
• C1 b11
• C1 b12
• C1 b2
• C1 b7
• C1 d
• C1 f6
• C1 f7
• C11 c1
• C2 a
• C2 a6
• C2 a7
• C2 b6
• C2 c
• C2 d
• C2 d11
• C2 d12
• C3 e2
• C3 h
• C4 a
• C4 c
• C4 d
• C4 f
• C6 b
• C6 g
• Center high mount stop lamp/ cargo lamp
• Chmsl fuse 10a
• Clear- ance lamps
• Cruise control system
• D10
• D11
• E c1
• F nca
• F11
• F12
• Fr prk fuse 10a
• Fuse block (lower left side of dash)
• Fuse block (under left side of dash)
• G108 (left radiator support bracket)
• G200 (upper left kick panel)
• G203
• G203 (upper right kick panel)
• G300 (under driver seat)
• G415 (on spare tire hoist bracket)
• Haz lp fuse 20a
• Hazard
• Head
• Headlamp & panel dimmer switch
• Hot at all times
• Hot in run or start
• I/p junction block (lower right side of dash)
• Instrument cluster
• Int prk fuse 10a
• Interior lights system
• Left
• Left front marker lamp
• Left front park/ turn lamp
• Left license lamp
• Left outside power mirror
• Left rear turn lamp
• Left tail/ stop- lamp
• Left turn in
• Left turn ind
• Lr prk fuse 10a
• Lt turn fuse 10a
• Nca
• Nca h
• Normal
• Park
• Park lamp relay
• Park lps fuse 30a
• Park rly ctrl
• Pnk
• Puddle lamp relay
• Puddle rly ctrl
• Rear lamps junction block (front of rear bumper, on cross- member)
• Right
• Right front marker lamp
• Right front park/ turn lamp
• Right license lamp
• Right outside power mirror
• Right rear turn lamp
• Right tail/ stop- lamp
• Right turn in
• Right turn ind
• Roof beacon provision
• Roof beacon relay (left "b" pillar)
• Roof beacon switch
• Roof marker lamps
• Rr prk fuse 10a
• Rt turn fuse 10a
• S100
• S101
• S201
• Seo 1 fuse 15a
• Seo 2 fuse 30a
• Sp203
• Stop lamp switch (on brake pedal support bracket)
• Stop lps fuse 20a
• Throttle actuator control module
• Trailer circuit
• Trailer wiring provision
• Turn fuse 20a
• Turn/ hazard switch
• Turn/hazard flasher
• Underhood junction block (left side of eng compt, near battery)
• Uplevel
• Veh stop fuse 10a

Trailer/Camper Adapter Wiring Diagram for GMC Sierra 2000 1500

List of elements for Trailer/Camper Adapter Wiring Diagram for GMC Sierra 2000 1500:

• (in camper wiring harn)
• Body control module
• Body junction block (left side of dash)
• C1 c
• C1 c11
• C1 f2
• C10 c1
• C2 d10
• C3 b3
• C3 e1
• C3 e5
• C5 a
• C5 b
• C5 c
• C5 d
• C5 f
• Camper extension
• Camper in-line connector
• Camper wiring (pickup only)
• Chmsl fuse 10a
• D10
• E10
• F c1
• F10 c2
• G203 (upper left kick panel)
• G415 (on spare tire hoist bracket)
• Heavy duty trailer wiring
• Hot at all times
• Hot with back-up lamp switch closed
• Hot with park lamp relay energized
• Hot with stop lamp switch depressed
• Int prk fuse 10a
• Light duty trailer wiring
• Nca
• Pickup only
• Red
• S400 (in camper wiring harn)
• S401 (in camper wiring harn)
• S402 (in camper wiring harn)
• S403 (in camper wiring harn)
• S404 (in camper wiring harn)
• S405
• S406
• Splice pack
• Stud 1
• Stud 1 maxi fuse 40a
• Stud 2
• Stud 2 maxi fuse 30a
• Trailer connector
• Trailer in-line connector
• Trl l trn fuse 10a
• Trl prk fuse 15a
• Trl r trn fuse 10a
• Trlr b/u fuse 15a
• Turn/ hazard switch
• Underhood junction block (left side of eng compt, near battery)
• Utilities only
• Veh b/u fuse 15a

GROUND DISTRIBUTION

Ground Distribution Wiring Diagram (1 of 3) for GMC Sierra 2000 1500

List of elements for Ground Distribution Wiring Diagram (1 of 3) for GMC Sierra 2000 1500:

• (0thers)
• (4.3l)
• (4.3l) g119 (right front of engine)
• (all gas ex 4.3l)
• (canada)
• 4.3l
• A c1
• A/c
• A/c automatic recirculating switch
• Air injection reaction pump
• Air injection reaction solenoid
• All other gas
• Automatic transfer case (atc) control module
• Auxiliary
• Battery relay
• Body wiring harness junction block (under left side of dash)
• Brake fluid
• C d
• C2 a7
• C2 b8
• Coil module
• Compressor clutch
• Compressor low pressure cycling switch
• Coolant level switch
• Cruise control module
• D12
• Data link connector (dlc)
• Electronic brake control module (ebcm)
• Engine
• Engine wiring harness junction block (left side of eng compt)
• Engine wiring harness junction block (left side of engine compt)
• Front axle actuator/ switch
• Fuel pump relay
• G102 (on left front body mount)
• G108 (left radiator support bracket)
• G110 (4.8l, 5.3l, 6.0l) (left front of engine)
• G114 (left rear of engine)
• G117 (4.8l, 5.3l, 6.0l) (right rear of engine)
• G117 (right rear of engine)
• Headlamp relay
• Heated oxygen sensor (ho2s) (bank 1 sensor 1)
• Heated oxygen sensor (ho2s) (bank 1 sensor 2)
• Heated oxygen sensor (ho2s) (bank 2 sensor 1)
• Heated oxygen sensor (ho2s) (bank 2 sensor 2)
• Ign 1 relay
• Ignition
• Ignition coils (left bank) (v8 gas only)
• Ignition coils (right bank) (v8 gas only)
• Instrument cluster
• Left battery
• Left daytime running lamp (drl)
• Left fog lamp
• Left horn (low)
• Left park/ turn lamp
• Level switch
• Low washer switch
• Mass airflow (maf) sensor
• Motor module
• Nca
• Oil level switch
• Park/ neutral position switch
• Right battery
• Right daytime running lamp (drl)
• Right fog lamp
• Right horn (v22 only)
• Right park/ turn lamp
• S102 (engine harness)
• S103 (engine harness)
• S156 (eng harn)
• S157 (engine harn)
• Secondary
• Starter relay
• Throttle actuator control module
• Transfer case switch
• Underhood lamp
• V8 gas
• Vehicle control module (vcm)/ powertrain control module (pcm)
• Vss shield (4.3l)
• W/atc
• W/o atc
• Windshield washer pump
• Windshield wiper

Ground Distribution Wiring Diagram (2 of 3) for GMC Sierra 2000 1500

List of elements for Ground Distribution Wiring Diagram (2 of 3) for GMC Sierra 2000 1500:

• (base only)
• (base only) cigar lighter
• (base only) left mini wedge (door jamb switch)
• (base only) left power door lock switch
• (base only) mode door motor
• (base only) recirculation door motor
• (base only) right mini wedge (door jamb switch)
• (base only) temperature door motor
• (not used)
• (uplevel only)
• (uplevel only) automatic transfer case (atc) select switch
• 87a
• A12
• A16
• Amplifier
• Ashtray lamp
• Automatic day-night rearview mirror w/ compass
• Automatic transfer case (atc) control module
• Auxiliary power outlet
• B12
• Blower motor switch/hvac control module
• Body control module
• Body wiring harness junction block (under left side of dash)
• Brake transmission shift interlock solenoid
• C10
• C11
• C297
• C297c
• Center high mounted stop/ cargo lamp
• Courtesy lamp relay
• Data link connector (dlc)
• E13
• E16
• F12
• Fog/ cargo lamp switch
• Front overhead reading lamps
• Fuse block (lower left side of dash)
• G200 (upper left kick panel)
• Headlamp & panel dimmer switch
• Headlamp dimmer switch
• Heated/ memory seat switch
• Horn switch
• In vehicle temperature sensor assembly
• Inflatable restraint i/p module switch
• Instrument cluster
• Key cylinder switch
• Left door key switch
• Left mini wedge (door jamb switch)
• Left outside power mirror
• Left power window/ door lock switch
• Nca
• Park switch
• Power door lock switch
• Power door locks relay
• Power mirror switch
• Power window switch
• Radio
• Remote control door lock receiver
• Right power door lock switch
• Roof beacon switch
• Selectable ride switch
• Sp203
• Steering column
• Tow/haul switch
• Traction assist switch
• Turn/ hazard flasher
• Uplevel only
• Vehicle interface unit (viu)

Ground Distribution Wiring Diagram (3 of 3) for GMC Sierra 2000 1500

List of elements for Ground Distribution Wiring Diagram (3 of 3) for GMC Sierra 2000 1500:

• (base seat)
• (heavy duty) trailer connector
• (light duty) trailer connector
• (uplevel) hvac control module
• (uplevel) mode door motor
• (uplevel) recirculation door motor
• (uplevel) temperature door motor
• 6.0l
• A11
• A18
• Auto- ecc hvac control module
• Auxiliary power outlet (console)
• Blower motor resistor/ relay assembly
• C10
• Door lock switch
• Driver heated seat relay
• Driver power seat switch
• Driver seat belt switch
• Driver seat bolster switch
• Driver seat heating element
• Driver seat lumbar motor
• Driver seat power switch
• Driver seat thermistor
• Full feature seat
• G203 (upper right kick panel)
• G300 (under driver's seat)
• G308 (left side of "b" pillar)
• G308 (right side of "b" pillar)
• G415 (on spare tire hoist bracket)
• G416 (left rear body mount)
• G416 (on left frame rail near body mount)
• I/p compartment lamp
• Inflatable restraint sensing & diagnostic module
• Ip wiring harness junction block (lower right side of dash)
• Left back-up lamp
• Left front shock solenoid valve
• Left license lamp
• Left rear shock solenoid valve
• Left tail/ stoplamp
• Left turn lamp
• Memory seat module
• Nca
• Nca b
• Passenger heated seat relay
• Passenger heated seat switch
• Passenger power seat switch
• Passenger seat bolster switch
• Passenger seat heating element
• Passenger seat lumbar motor
• Passenger seat switch
• Passenger seat thermistor
• Power seat
• Power window switch
• Primary fuel pump/ sender
• Rap 2 relay
• Rear lamps bussing block (front of rear bumper, on crossmember)
• Rear window def0gger element
• Right back-up lamp
• Right front shock solenoid valve
• Right license lamp
• Right mini wedge (door jamb switch)
• Right outside power mirror
• Right power window/ door lock switch
• Right rear shock solenoid valve
• Right tail/ stoplamp
• Right turn lamp
• Roof beacon ground
• Roof beacon relay
• Roof marker lamps
• S201 (near roof marker lamps)
• S307
• S308
• S309
• Seat belt switch
• Secondary fuel pump/ sender
• Uplevel only
• Window lock out

HEADLIGHTS

Headlight Wiring Diagram for GMC Sierra 2000 1500

List of elements for Headlight Wiring Diagram for GMC Sierra 2000 1500:

• A11
• Al sens ref
• Al sens sig
• Ambient light sensor (on top center of dash)
• Auto
• Body control module (lower left side of dash)
• Body junction block (under left side of dash)
• C1 b4
• C1 d3
• C1 f7
• C2 f7
• Drl fuse 10a
• Drl relay
• E10
• E11
• E12
• E13
• Exterior lamps system (park lamp relay)
• F2 c1
• Flash- to-pass
• Fog lamp switch
• Fog lp relay
• Fog lp sw
• Fog lps fuse 15a
• Ftp in
• G108 (on left radiator support)
• G114 (left rear of engine)
• G202
• Head
• Headlamp dimmer switch
• Headlamp relay
• Headlamp switch
• High
• High beam
• Hot at all times
• Hot in run or start
• Igne fuse 10a
• Left drl lamp
• Left fog lamp
• Left high beam headlamp
• Left low beam headlamp
• Low
• Lt hdlp fuse 15a
• On indicator
• Park
• Pickups
• Right drl lamp
• Right fog lamp
• Right high beam headlamp
• Right low beam headlamp
• S100
• S101
• S102
• Splice pack 203 (left side of dash)
• Tbc fuse 10a
• Underhood junction block (left side of engine compt)
• Utilities

HORN

Horn Wiring Diagram for GMC Sierra 2000 1500

List of elements for Horn Wiring Diagram for GMC Sierra 2000 1500:

• (left side of engine compartment)
• A11
• C1 body control module (in center console)
• G108 (left radiator support bracket)
• Horn fuse 15a
• Horn relay
• Horn switch
• Hot at all times
• Left horn (left side of radiator support)
• Nca
• Right horn (right side of radiator support)
• S101
• S10o
• Underhood junction block

INSTRUMENT CLUSTER

Instrument Cluster Wiring Diagram for GMC Sierra 2000 1500

List of elements for Instrument Cluster Wiring Diagram for GMC Sierra 2000 1500:

• (not used)
• (w/ 4.3l)
• (w/0 4.3l)
• 4wd ind
• A10
• A11
• A12
• Abs ind
• Air bag ind
• B10
• B11
• B12
• Body control module
• Body wiring harness junction block
• Body wiring harness junction block (under left side of dash, near kick panel)
• Brake ind
• C201
• Computer data lines system
• Cruise control module
• Cruise fuse 10a
• Cruise ind
• Cruise pwr
• Data lines
• Engine controls system
• Engine oil pressure sensor
• Engine wiring harness junction block
• Engine wiring harness junction block (at left side of engine compt, near battery)
• Exterior lights system
• Fuel gauge
• Fuse block (on lower left side of dash)
• G108 (left radiator support bracket)
• G117 (right rear of engine)
• G200
• High beam ind
• Hot at all times
• Hot in run
• Hot in run or start
• Hot in run, bulb test, or start
• Hour meter
• Ign 1 fuse 10a
• Ign o fuse 10a
• Ignition 0
• Illum pwr
• Illumination (6 bulbs)
• Instrument cluster
• Interior lights system
• J/c sp203 (upper left kick panel)
• Led dim
• Left turn ind
• Logic
• Low wash
• Low washer switch (in washer fluid reservoir)
• Message center
• Nca
• Odometer
• Oil gauge
• Oil press
• Park brake switch (part of the park brake assembly)
• Park sw
• Pnk
• Prnd321
• Radio
• Radio fuse 10a
• Right turn ind
• S100
• Seat belt ind
• Service engine soon ind
• Spare
• Speedometer
• Suspension control module
• Tach out
• Tacho
• Tachometer
• Temp gauge
• Trans temp gauge
• Trip
• Upshift ind
• Vehicle control module (vcm)/ powertrain control module (pcm) (on left front of engine compt)
• Volts gauge
• Vss
• Vss out

INTERIOR LIGHTS

Courtesy Lamps Wiring Diagram, Base for GMC Sierra 2000 1500

List of elements for Courtesy Lamps Wiring Diagram, Base for GMC Sierra 2000 1500:

• (4.3l)
• (4.8l, 5.3l, 6.0l)
• (not used)
• A10
• A12
• B12
• Body control module (on lower left side of dash, below steering column)
• Body wiring harness junction block (under left side of dash, near left kick panel)
• C10
• C11
• C12
• C9 c2
• Cargo lamp
• Cargo lamp switch
• Cargo lp sw
• Courtesy lamp relay
• Ctsy lp fuse 15a
• Ctsy lp rly
• Dome lamp
• Dome lamp defeat switch
• Dome lamp switch
• Dome lp dft
• Dome lp sw
• Engine wiring harness junction block (on left side of engine compt)
• Fuse block (on lower left side of dash)
• G110 (left front of engine)
• G119 (right front of engine)
• G200 (upper left kick panel)
• Headlamp & panel dimmer switch
• Hot at all times
• Inadvert rly
• Inadvertant power relay
• Lamp request
• Left i/p courtesy lamp
• Left mini wedge (door jamb switch)
• Lt door jamb
• Right i/p courtesy lamp
• Right mini wedge (door jamb switch)
• Right power door lock switch
• Rt dr jamb
• S102
• Sp203
• Tan
• Underhood off lamp assembly

Courtesy Lamps Wiring Diagram, Up Level for GMC Sierra 2000 1500

List of elements for Courtesy Lamps Wiring Diagram, Up Level for GMC Sierra 2000 1500:

• (4.3l)
• (4.8l, 5.3l, 6.0l)
• (not used)
• A10
• A11
• B11
• B12
• Body control module (on lower left side of dash, below steering column)
• Body wiring harness junction block (under left side of dash, near left kick panel)
• C10
• C12
• C9 c2
• Cargo lamp
• Cargo lamp switch
• Cargo lp sw
• Courtesy lamp relay
• Ctsy lp fuse 15a
• Ctsy lp rly
• D10
• Dome lamp
• Dome lamp defeat switch
• Dome lamp switch
• Dome lp dft
• Dome lp sw
• Dr handle sw
• Engine wiring harness junction block (on left side of engine compt)
• Fuse block (on lower left side of dash)
• G110 (left front of engine)
• G119 (right front of engine)
• G200 (upper left kick panel)
• G203 (upper right kick panel)
• Headlamp & panel dimmer switch
• Hot at all times
• I/p compart- ment lamp
• I/p wiring harness junction block (on lower right side of dash)
• Inadvert rly
• Inadvertent power relay
• Lamp request
• Left front door courtesy lamp
• Left i/p courtesy lamp
• Left mini wedge (door jamb switch)
• Left power window/door lock switch
• Lt door jamb
• Reading lamps
• Right front door courtesy lamp
• Right i/p courtesy lamp
• Right mini wedge (door jamb switch)
• Rt door jamb
• S102
• Sp203
• Tan
• Underhood lamp assembly off

Instrument Illumination Wiring Diagram for GMC Sierra 2000 1500

List of elements for Instrument Illumination Wiring Diagram for GMC Sierra 2000 1500:

• (4 bulbs)
• (6 bulbs)
• (base) (up level)
• A12
• Ashtray lamp
• Auto
• Automatic transfer case select switch
• B11
• B12
• B5 c1
• Base
• Body control module (on lower left side of dash, below steering column)
• Body wiring harness junction block (under left side of dash, near left kick panel)
• C d
• C10
• Dim in
• Driver heated seat switch
• Engine wiring harness junction block (on left side of engine compt)
• F12
• Fog/ cargo lamp switch
• Fuse block (on lower left side of dash)
• G200 (upper left kick panel)
• G203 (upper right kick panel)
• Head
• Headlamp & panel dimmer switch
• Hot at all times
• Hvac control module/ blower control switch
• I/p dim
• I/p wiring harness junction block (on lower right side of dash)
• Illum fuse 10a
• Inflatable restraint i/p module switch
• Instrument cluster
• Int prk fuse 10a
• Left power door lock switch
• Left power window switch
• Left power window/ door lock switch
• Nca
• Parade mode
• Park
• Park lp rly
• Park lp sig
• Park lps fuse 30a
• Parklamp relay
• Power mirror switch
• Radio
• Right heated seat switch
• Right power door lock switch
• Right power window switch
• Right power window/door lock switch
• Roof beacon switch
• Select- able ride switch
• Sp203
• Traction assist switch
• Up level

MEMORY SYSTEMS

Driver's Memory Seat Wiring Diagram for GMC Sierra 2000 1500

List of elements for Driver's Memory Seat Wiring Diagram for GMC Sierra 2000 1500:

• (2 door) (4 door)
• (4 door) (2 door)
• A a
• A10 f7
• B/u lps fuse 25a
• B7 c1
• Back
• Body wiring harness junction block
• Btsi fuse 10a
• C2 c1
• C6 c14
• D1 c1 c4
• Driver power seat switch
• Engine wiring harness junction block
• Forward/ rearward motor
• Front tilt motor
• Frt dn
• Frt up
• Fuse block
• Fwd
• G301 (under driver's seat)
• Hot at all times
• Hot in run
• Hot in run or start
• Ign
• Ign 3 fuse 10a
• Left power window/ door lock switch
• Memory seat module (underside of driver's seat)
• Memory seat switch
• Mir/lock fuse 3a
• Nca
• Park sw in
• Park/ neutral position switch (left side of transmission)
• Pnk
• Rcl 1
• Rcl 1 sw
• Rcl 2
• Rcl 2 sw
• Rcl back
• Rcl fwd
• Rear dn
• Rear tilt motor
• Rear up
• Recliner motor
• S308
• S310
• Seats circuit breaker 25a
• Set
• Set sw
• Shift interlock system

POWER DISTRIBUTION

Power Distribution Wiring Diagram (1 of 4) for GMC Sierra 2000 1500

List of elements for Power Distribution Wiring Diagram (1 of 4) for GMC Sierra 2000 1500:

• (4.3l)
• (base pickup)
• (diagram 1 of 4)
• (except 4.3l)
• (not used)
• (right rear side of cargo area)
• (under left side of dash) body wiring harness junction block
• (upper left kick panel)
• A/c compressor relay
• A/c fuse 10a
• Abs fuse 60a
• Air fuse 30a
• Atc fuse 20a
• Audio amplifier
• Automatic transfer case (encoder motor)
• Automatic transfer case control module
• Aux pwr fuse 20a
• Auxiliary power outlet
• Auxiliary power outlet (console)
• B12
• Base
• Bat
• Battery cable junction block
• Body control module
• C1 f2
• C10
• C12
• C6 a
• Cigar fuse 15a
• Cigar lighter
• Ctsy lp fuse 15a
• D10
• D11
• D12
• Data link connector (dlc)
• Daytime running lamp (drl) relay
• Drl fuse 10a
• E nca
• E10
• Ecm b fuse 20a
• Electronic brake control module (ebcm)
• Engine wiring harness junction block (on left side of eng compt)
• Engine wiring harness junction block (on left side of engine compt)
• Engine wiring harness junction block (on left side of engine)
• F10
• F11
• F12
• Fog lps fuse 15a
• Foglamp relay
• From air fuse b
• From fuse l block (diagram 4 of 4)
• From rap fuse c (diagram 1 of 4)
• Front blower motor resistor/ relay assembly
• Frt hvac fuse 30a
• Fuel pump relay
• Full feature driver seat
• Full feature passenger seat
• Fusible link (10 ga- red)
• G200
• G203 (upper right kick panel)
• G405
• Generator
• Hazard fuse 20a
• Headlamp & panel dimmer switch
• Headlamp dimmer switch
• Headlamp relay
• Horn relay
• Hvac control module (auto ecc)
• Inadvertent power relay
• Instrument cluster
• Instrument panel wiring harness junction block
• L nca
• Left battery
• Nca
• Park lamps fuse 30a
• Parklamp relay
• Power sunroof
• Power sunroof module
• Pwr wdo cb 25a
• Radio
• Radio fuse 15a
• Rap 2 fuse 50a
• Rap 2 relay
• Rap fuse 50a
• Rdo amp fuse 25a
• Rear auxiliary power outlet
• Red
• Remote control door lock receiver
• Right front power window/ door lock switch
• Right rear defogger relay
• Right rear power window/ door lock switch
• Roof beacon relay
• Roof beacon switch
• Secondary air injection (air) pump relay
• Seo 1 fuse 15a
• Seo 2 fuse 30a
• Sp203
• Sp410
• Starter solenoid
• Stop lps fuse 20a
• Stoplamp switch
• Tbc fuse 10a
• To auxiliary battery relay (diagram 3 of 4)
• To ecm b fuse (diagram 1 of 4)
• To fuse block (mir/lock fuse) (diagram 4 of 4)
• To ign a fuse (diagram 2 of 4)
• To park lamps fuse (diagram 1 of 4)
• Turn/ hazard switch
• Uplevel
• Vehicle control module (vcm)/ powertrain control module (pcm)
• Vehicle interface unit (onstar)

Power Distribution Wiring Diagram (2 of 4) for GMC Sierra 2000 1500

List of elements for Power Distribution Wiring Diagram (2 of 4) for GMC Sierra 2000 1500:

• (4.3l)
• (a/t)
• (all others)
• (canada built)
• (m/t)
• (not used)
• (others)
• A/c comp relay
• A10
• A13
• Acc
• Air bag fuse 15a
• Automatic day-night rearview mirror (w/ compass)
• Automatic transfer case (atc) select switch
• Automatic transmission
• B/u lp fuse 25a
• B11
• Back-up lamp switch (part of park/ neutral position switch (a/t))
• Body control module
• Body wiring harness junction block (under left side of dash)
• Bulb test
• C1 a1
• C10
• C2 f6
• Camshaft position (cmp) sensor (4.3l)
• Cellular phone-ready wiring
• Clutch pedal position switch (m/t)
• Compressor levelling module
• Compressor motor relay
• Crank fuse 10a
• Cruise control module
• Cruise control switch
• Cruise fuse 10a
• Drl relay
• E11
• E6 (not used)
• Eng 1 fuse 10a
• Engine wiring harness junction block (on left side of engine)
• Evaporative emission (evap) canister purge solenoid
• Evaporative emission (evap) vent solenoid
• Ext lps fuse 10a
• F10
• F11
• From cigar e
• Fuse (diagram 1 of 4)
• Fuse block (on lower left side of dash)
• Heated oxygen sensor (ho2s) (bank 1 sensor 1)
• Heated oxygen sensor (ho2s) (bank 1 sensor 2)
• Heated oxygen sensor (ho2s) (bank 2 sensor 1)
• Heated oxygen sensor (ho2s) (bank 2 sensor 2)
• Ign 1 fuse 10a
• Ign a fuse 40a
• Ign b fuse 50a
• Ign c fuse 20a
• Ign e fuse 10a
• Ign o fuse 10a
• Ignition switch
• In vehicle temperature sensor assembly (overhead)
• Inflatable restraint i/p module switch (pickup only)
• Inflatable restraint sensing & diagnostic module
• Instrument cluster
• Mass airflow (maf) sensor
• Nca
• Nca c
• Nca f
• O2 a fuse 15a
• O2 b fuse 15a
• Off
• Park/ neutral position switch (a/t)
• Pnk
• Rear window wiper module
• Rear window wiper washer switch
• Red
• Right rear defog relay
• Rr hvac fuse 30a
• Rr wiper fuse 15a
• Rr wpr fuse 25a
• Rtd module fuse 30a
• Run
• Secondary air injection (air) pump relay
• Secondary fuel pump relay
• Selectable ride switch
• Seo ign fuse 10a
• Seq accy fuse 10a
• Start
• Starter relay
• Stud 1
• Stud 1 fuse 40a
• Stud 2
• Stud 2 fuse 30a
• Suspension control module
• To htr/ a/c fuse (diagram 3 of 4)
• To ign 1 relay (diagram 3 of 4)
• To instrument panel wiring harness junction block (diagram 3 of 4)
• To retained accessory power relay (diagram 4 of 4)
• Traction assist switch
• Trailer connector
• Turn fuse 20a
• Turn/ hazard switch
• Vehicle control module (vcm)/ powertrain control module (pcm)
• Vehicle interface unit (viu)
• Windshield washer switch
• Windshield wiper motor module
• Ws wiper fuse 25a

Power Distribution Wiring Diagram (3 of 4) for GMC Sierra 2000 1500

List of elements for Power Distribution Wiring Diagram (3 of 4) for GMC Sierra 2000 1500:

• (4.3l)
• (all other gas)
• (all pnk
• (auto ecc)
• (base)
• (engine harness) s199
• (manual)
• (not used)
• (uplevel pickups & utilities)
• 4.3l
• 4wd fuse 15a
• All other gas
• Automatic transfer case (atc) control module
• Auxiliary battery relay
• B10
• Brake fuse 10a
• C10
• C11
• C12
• Clutch pedal position switch
• Compressor leveling module relay
• Crankshaft position (ckp) sensor
• D10
• E10
• E12
• Ecm 1 fuse 10a
• Electronic brake control module (ebcm)
• Engine wiring harness junction block (on left side of engine)
• Etc fuse 15a
• From cruise g
• From eng 1 fuse (diagram 2 of 4)
• From fuse link (diagram 1 of 4)
• From ign c f
• From rr hvac fuse (diagram 2 of 4)
• Front axle actuator/ switch
• Fuel injector 1
• Fuel injector 2
• Fuel injector 3
• Fuel injector 4
• Fuel injector 5 (all gas)
• Fuel injector 6
• Fuel injector 7 (except 4.3l)
• Fuel injector 8
• Fuse (diagram 2 of 4)
• Fuse block (on lower left side of dash)
• G114 (left rear of engine)
• Htr/ a/c fuse 25a
• Hvac 1 fuse 10a
• Hvac blower motor switch (manual)
• Hvac control module
• Ign 1 relay
• Ign 3 fuse 10a
• Ignition coil
• Ignition coil 1
• Ignition coil 2
• Ignition coil 3
• Ignition coil 4
• Ignition coil 5
• Ignition coil 6
• Ignition coil 7
• Ignition coil 8
• Ignition coil module
• Inj a fuse 15a
• Inj b fuse 15a
• Instrument panel wiring harness junction block (on lower right side of dash)
• Left front heated seat switch
• Mega fuse 125a
• Memory seat module (except pickup)
• Memory seat module (pickup only)
• Mode door motor
• Nca
• Other gas)
• Pnk
• Rear blower motor assembly/rear auxiliary blower motor/ resistor assembly
• Recirculation door motor
• Red
• Right battery
• Right front heated seat switch
• S102
• S104
• S152 (eng pnk harn)
• S154 (eng pnk harn)
• Stoplamp switch
• Suspension control module
• Temperature door motor
• To rear auxiliary blower motor resistor/relay assembly (diagram 4 of 4)
• Vehicle control module (vcm) (4.3l)
• Vehicle control module (vcm)/ powertrain control module (pcm)

Power Distribution Wiring Diagram (4 of 4) for GMC Sierra 2000 1500

List of elements for Power Distribution Wiring Diagram (4 of 4) for GMC Sierra 2000 1500:

• (4-door only)
• (not used)
• (pickup only)
• (pickup)
• (utilities)
• 87a
• A10
• Base
• Base pickup
• Base utility
• Body control module (bcm)
• Body wiring harness junction block fuse block (under left side of dash)
• C1 b4
• C14
• C7 e
• Door lock fuse 20a
• Driver door unlock relay (uplevel only)
• From fuse block (diagram 2 of 4)
• From instrument panel wiring harness junction block (diagram 3 of 4)
• From rap fuse d (diagram 1 of 4)
• Fuse block (on lower left side of dash)
• Hvac control module (rear)
• Instrument panel wiring harness junction block
• Left front power door lock switch
• Left front power window/ door lock switch
• Left full feature seat
• Left memory seat switch
• Left power door lock switch
• Left power seat
• Left power seat switch
• Left power window/ door lock switch
• Left rear power window/ door lock switch
• Memory seat switch
• Mir/ lock fuse 3a
• Mode door motor
• Nca
• Power door lock relay
• Power door unlock relay
• Power mirror switch
• Pwr wdo cb 25a
• Radio
• Rap 2 fuse 10a
• Rap a7
• Rdo 1 fuse 10a
• Rear auxiliary blower motor resistor/relay assembly
• Rear auxiliary blower motor switch (front)
• Rear auxiliary blower motor switch (rear)
• Rear power door lock switch
• Red
• Relay control
• Relays
• Retained accessory power relay
• Right front power window/ door lock switch
• Right full feature seat
• Right memory seat switch
• Right power door lock switch
• Right power seat
• Right power seat switch
• Seats circuit breaker 25a
• Temperature door motor
• To rap 2 relay (diagram 1 of 4)
• Uplevel & 4-door
• Uplevel all
• Utility only
• W/ auto ecc
• W/ heat & a/c
• W/ heat or a/c
• W/ sunroof
• W/o sunroof

POWER DOOR LOCKS

Power Door Lock Wiring Diagram, Base for GMC Sierra 2000 1500

List of elements for Power Door Lock Wiring Diagram, Base for GMC Sierra 2000 1500:

• (lower right side of i/p) i/p junction block
• (upper left i/p, at "a" pillar)
• 87a
• A12
• B11
• B12
• Body control module (on lower left side of dash, below steering column)
• Body junction block (near left kick panel)
• C1 a11
• C1 b8
• C1 f4
• C211
• C4 a
• C4 d
• C4 m
• Door lock relay
• Door unlock relay
• Dr lk rly
• Dr lock fuse 20a
• Dr unlk rly
• Driver door lock actuator
• Driver door lock switch
• Drv dr unlk rly
• E10
• F12
• Fuse block (on lower left side of dash)
• G200
• G200 (upper left kick panel)
• Hot at all times
• Ign key sig
• Ignition key alarm switch (part of steering column assembly)
• Instrument panel cluster
• Lock
• Lock fuse 15a
• Mir/ lock fuse 3a
• Nca
• Passenger door lock actuator
• Passenger door lock switch
• Powertrain control module (left front inside of engine compartment)
• Splice pack
• Tan
• Unlock
• Unlock fuse 15a
• Unlock jmpr fuse 30a
• Vss
• Vss signal

Power Door Lock Wiring Diagram, Up Level for GMC Sierra 2000 1500

List of elements for Power Door Lock Wiring Diagram, Up Level for GMC Sierra 2000 1500:

• (lower right side of i/p) i/p junction block
• (upper left kick panel)
• 87a
• A12
• B11
• B12
• Battery
• Body control module (on lower left side of dash, below steering column)
• Body junction block (near left kick panel)
• C1 a11
• C1 a12
• C1 b8
• C1 f2
• C1 f4
• C11
• C211
• C4 a
• C4 d
• C4 m
• Door lock relay
• Door unlock relay
• Dr lock fuse 20a
• Driver door lock actuator
• Driver door unlock relay
• Driver window/door lock switch
• E10
• F10
• F12
• Fuse block (on lower left side of dash)
• G200
• G200 (upper left kick panel)
• Ground
• Hot at all times
• I/p junction block (on lower right side of i/p)
• Ign key switch
• Ignition key alarm switch (part of steering column assembly)
• Instrument panel cluster
• Lf dr unlk in
• Lock
• Lock fuse 15a
• Lock in
• Mir/lock fuse 3a
• Nca
• Passenger door lock actuator
• Passenger window/door lock switch
• Powertrain control module (left front inside of engine compartment)
• Remote control door lock receiver (behind top center of dash)
• Serial data
• Splice pack
• Srl data
• Tan
• Tbc fuse 10a
• Underhood junction block (on left side of engine compt)
• Unlock
• Unlock fuse 15a
• Unlock in
• Vss
• Vss signal

POWER MIRRORS

Electrochromic Mirror Wiring Diagram for GMC Sierra 2000 1500

List of elements for Electrochromic Mirror Wiring Diagram for GMC Sierra 2000 1500:

• (behind left side of dash)
• (w/ onstar)
• (w/o onstar)
• (w/o onstar) (w/ onstar)
• A/t
• B/u lp fuse 25a
• Back-up lamp switch (on left side of trans- mission)
• Back-up lamp switch (part of park/neutral position switch) (on left side transmission)
• Body junction block
• C/m
• C1 a11
• C1 a4
• C1 b10
• C1 d8
• C1 e12
• C1 f2
• C11 a
• C11 b
• C2 a9
• C2 f
• C2 f9
• C6 a
• C6 j
• C6 m
• Compass
• Dim fd
• Dim rtn
• Driver outside rearview mirror (utility)
• Electro-chromic
• Fuse block (on lower left side of dash)
• G202
• Hot in run or start
• Ign 1 fuse 10a
• Inside rearview mirror
• M/t
• Nca
• Off
• Others
• Outside air temperature sensor (behind center grille)
• Photo sensor
• Pickup w/ compass & outside temperature
• Pnk
• Selector switch
• Temp
• Veh b/u fuse 15a

Power Mirror Wiring Diagram for GMC Sierra 2000 1500

List of elements for Power Mirror Wiring Diagram for GMC Sierra 2000 1500:

• C1 m
• C2 g
• Defogger system
• Down
• Driver outside rearview mirror
• Driver power window/ door lock switch
• Fuse block
• G200
• Heating element
• Hot at all times
• Interior lights system
• L c4
• Left
• Left/ right motor
• Memory systems
• Mir/ clock fuse 3a
• Nca
• Outside rearview mirror switch
• Passenger outside rearview mirror
• Right
• Sp203 (upper left kick panel)
• Up/ down motor

POWER SEATS

6-Way Power Seat Wiring Diagram for GMC Sierra 2000 1500

List of elements for 6-Way Power Seat Wiring Diagram for GMC Sierra 2000 1500:

• A10
• Back
• Body junction block
• C14
• Driver seat adjuster switch
• Front dn
• Front up
• Fuse block (on lower left side of dash)
• Fwd
• G300 (under driver's seat)
• Hot at all times
• Passenger power seat switch
• Rear dn
• Rear up
• S307
• Seat circuit breaker 25a
• Seat front vertical motor
• Seat horizontal motor
• Seat rear vertical motor
• Tan

Heated Seats Wiring Diagram for GMC Sierra 2000 1500

List of elements for Heated Seats Wiring Diagram for GMC Sierra 2000 1500:

• Body wiring harness junction block (under left side of dash)
• D12
• Driver heated seat relay (in driver seat)
• Driver seat heated switch
• Driver seat heater element (seat back)
• Driver seat heater element (seat)
• Driver thermistor
• Engine wiring harness junction block (on left side of eng compt)
• Fuse block (on lower left side of dash)
• G200 (upper left kick panel)
• G203 (upper right kick panel)
• G300 (under driver's seat)
• Gnd
• Heater on ind
• Hot at all times
• Hot in run
• I/p harness junction block (on lower right side of dash)
• Ign 3 fuse 10a
• Illum
• Interior lights system
• Left power window/ door lock switch
• Nca
• Passenger heated seat relay (in passenger seat)
• Passenger heated seat switch
• Passenger seat heater element (seat back)
• Passenger seat heater element (seat)
• Passenger seat thermistor
• S308
• Sensor
• Seo 2 fuse 30a
• Solid state
• Sp203

Lumbar Wiring Diagram for GMC Sierra 2000 1500

List of elements for Lumbar Wiring Diagram for GMC Sierra 2000 1500:

• A10
• Body junction block
• C14
• Driver lumbar/ bolster switch
• Driver seat bolster m0tor
• Driver seat lumbar m0tor
• Fuse block (on lower left side of dash)
• G300 (under driver's seat)
• Hot at all times
• Out
• Pass- enger lumbar/ bolster switch
• Passenger seat bolster m0tor
• Passenger seat lumbar m0tor
• Pnk
• Power seats circuit
• S308
• S309
• S310
• S311
• Seat circuit breaker 25a
• Tan

POWER WINDOWS

Power Window Wiring Diagram for GMC Sierra 2000 1500

List of elements for Power Window Wiring Diagram for GMC Sierra 2000 1500:

• Down
• Driver window motor
• Driver window/ door lock switch
• Fuse block (on lower left side of dash)
• G200 (upper left kick panel)
• Hot in acc, run, bulb test, start & with rap relay energized
• I/p junction block (on lower right side of dash)
• Interior lights system
• Left down
• Left up
• Passenger window motor
• Passenger window/ door lock switch
• Pwr wdo circuit breaker 25a
• Right down
• Right up
• Splice pack sp203
• Tan
• Wdo dn relay
• Wdo up relay

RADIO

Radio Wiring Diagrams for GMC Sierra 2000 1500

List of elements for Radio Wiring Diagrams for GMC Sierra 2000 1500:

• 4.3l
• Antenna
• Audio rtn
• Bare
• Base
• Battery
• Cruise control module
• D10
• D12
• Dim sig in
• Dim sig out
• Dimmer
• Drain
• E&c line
• Except 4.3l
• G200 (upper left kick panel)
• Ground
• Hot at all times
• Hot with rap relay energized
• Ignition
• Instrument cluster
• Interior lights system
• J c4
• Left bussed electrical center (on lower left side of dash)
• Left front door speaker
• Left rear speaker
• Lf +
• Lf -
• Lr +
• Lr -
• Lt input
• Lt output
• Mid bussed electrical center (near left kick panel)
• Nca
• Park lps
• Pnk
• Powertrain control module (left front of engine compt)
• Premium
• R14 in
• R14 out
• Radio
• Radio fuse 15a
• Rao i fuse 10a
• Remote compact disk player
• Rf +
• Rf -
• Right front door speaker
• Right rear speaker
• Rr +
• Rr -
• Rt input
• Rt output
• Sp203
• Tan
• Underhood bussed electrical center (on left side of engine compt)
• Vehicle control module (left front of engine compt)
• Vss signal

SHIFT INTERLOCKS

Shift Interlock Wiring Diagram for GMC Sierra 2000 1500

List of elements for Shift Interlock Wiring Diagram for GMC Sierra 2000 1500:

• (upper left kick panel)
• A/t shift lock control solenoid (on steering column)
• A16
• A17
• B/u lps fuse 25a
• Btsi fuse 10a
• G200
• Hot in run or start
• Memory systems
• Nca
• Park/ neutral position switch (left side of transmission)
• Pnk
• Splice pack
• Stoplamp switch (top of brake pedal)
• Underhood junction block

STARTING/CHARGING

Charging Wiring Diagram for GMC Sierra 2000 1500

List of elements for Charging Wiring Diagram for GMC Sierra 2000 1500:

• (2001 only)
• (left radiator support bracket) g108
• (not used)
• (on left front side of engine) battery cable junction block
• (right front of engine) g119
• 4.3l engine
• All other engines
• Battery
• Body wiring harness junction block (under left side of dash, near kick panel)
• Charge indicator control
• Computer data lines
• Fuse block (on lower left side of dash)
• G117 (right rear of engine)
• Generator
• Generator field duty cycle signal
• Hot in run & start
• Ign 1 fuse 10a
• Instrument cluster
• Left battery
• Message center
• Pnk
• Power distribution system
• Powertrain control module (pcm) or vehicle control module (vcm) (on left front of engine compartment)
• Red
• Serial data class 2
• Solid state
• Splice pack (sp205) (on left side of dash behind headlamp switch)
• Starter solenoid
• Voltmeter

Starting Wiring Diagram for GMC Sierra 2000 1500

List of elements for Starting Wiring Diagram for GMC Sierra 2000 1500:

• (in engine harness) s102
• (not used)
• (right front of engine block) g132
• 87a
• A/t
• Acc
• Battery cable junction block (on left front side of engine)
• Body wiring harness junction block (under left side of dash, near kick panel)
• C10
• Clutch pedal position switch (on top of clutch pedal bracket)
• Crank fuse 10a
• D11
• D12
• F10
• F11
• Fuse block (on lower left side of dash)
• G108 (left radiator support bracket)
• G119 (right front of engine)
• Ign a fuse 40a
• Ign c fuse 20a
• Ignition switch
• Left battery
• Lock
• M/t
• Nca
• Off
• Park/neutral position switch (on left side of transmission)
• Power distribution system
• Red
• Run
• Start
• Starter motor
• Starter motor relay
• Starter solenoid
• Starting/ charging system (charging circuit) (generator left)
• Starting/ charging system (charging circuit) (generator right) (diesel dual generator)
• Underhood junction block (at left side of engine compartment, near battery)

SUPPLEMENTAL RESTRAINTS

Supplemental Restraint Wiring Diagram for GMC Sierra 2000 1500

List of elements for Supplemental Restraint Wiring Diagram for GMC Sierra 2000 1500:

• (under driver seat) g300
• A10
• A11
• A12
• A13
• A14
• A15
• A16
• A17
• A18
• Air bag fuse 15a
• Air bag indicator
• Body wiring harness junction block (under left side of dash, near kick panel)
• Class 2 serial data
• Data link connector (dlc) (partial) (under left side of dash, below steering column)
• Discrim sensor input
• Driver frontal high
• Driver frontal low
• Fuse block (on lower left side of dash)
• G202
• Ground
• Hot in run & start
• Ign 1 fuse 10a
• Ignition
• Inflatable restraint front end discriminating sensor (on underside of radiator support)
• Inflatable restraint i/p module switch
• Inflatable restraint ip module
• Inflatable restraint sensing & diagnostic module (under driver's seat)
• Inflatable restraint steering wheel module
• Inflatable restraint steering wheel module coil
• Instrument cluster
• Interior lights system
• Nca
• Off
• Ohms
• Pass frontal high
• Pass frontal low
• Pass sir disable
• Pass sir enable
• Pnk
• Sensor ground
• Shorting bar
• Solid state
• Splice pack 205 (sp205) (on left side of dash, behind headlamp switch)
• Splice pack sp203 (sp203) (on top left side of dash, near "a" pillar)

TRANSMISSION

4.3L

4.3L VIN W, A/T Wiring Diagram, 4L60-E for GMC Sierra 2000 1500

List of elements for 4.3L VIN W, A/T Wiring Diagram, 4L60-E for GMC Sierra 2000 1500:

• (behind headlamp switch) splice pack sp205
• (in engine harness) s107
• (not used) a
• (right rear of engine)
• +5v
• 1-2 shift solenoid
• 1-2 ss
• 2-3 shift solenoid
• 2-3 ss
• 3-2 ctrl solenoid
• 3-2 ss
• 4wd circuit (front axle & transfer case switch)
• 4wd low
• A/t fluid pressure manual valve position switch
• A12
• Automatic transmission (4l60-e)
• Body control module (on lower left side of dash, below steering column)
• Body wiring harness junction c1 block
• Brake fuse 10a
• Brk sw
• C11
• Cls 2 data
• D3, d2
• D4, d2
• Data link connector (under left side of dash)
• Ecm1 fuse 10a
• Ecmb fuse 20a
• Ect sig
• Engine controls
• Engine coolant temperature sensor (left rear of cylinder head)
• Engine wiring harness junction block
• Engine wiring harness junction c2 block
• Fluid temp sensor
• Frt axle sw
• Fuse block
• G117
• G117 (right rear of engine)
• Gnd
• Harness) s105
• Hot at all times
• Hot in run
• Hot in run & start
• Ign
• Ign0 fuse 10a
• Ign1 fuse 10a
• Instrument cluster
• Malfunction indicator lamp
• Mil ctrl
• Nca
• Park/neutral position switch (left side of transmission)
• Pc sol hi
• Pc sol lo
• Pnk
• Press ctrl solenoid
• Prnd a
• Prnd b
• Prnd c
• Prnd p
• Range b
• Range c
• Red
• Return
• Rev, lo
• S103
• Stoplight switch (top of brake pedal bracket)
• Tan
• Tcc pwm
• Tcc pwm solenoid
• Tcc sol
• Tcc solenoid
• Tft sens sig
• Throttle position sensor (on throttle body assy)
• Tp sig
• Trans rng a
• Vehicle control module (left front of engine compt)
• Vehicle speed sensor (left rear of transmission)
• Vss hi (signal)
• Vss lo (ground)

Transfer Case Wiring Diagram, Electronic for GMC Sierra 2000 1500

List of elements for Transfer Case Wiring Diagram, Electronic for GMC Sierra 2000 1500:

• (left front of engine compt) powertrain control module
• (left front of engine compt) vehicle control module
• (on left front body mount) g102
• (under left side of dash) data link connector
• +8v ref
• +8v ref out
• 2-hi ind
• 4-hi ind
• 4-lo ind
• 4.3l
• 4.8l, 5.3l & 6.0l
• 4wd fuse 15a
• 4wd indicator lamp
• 4wd sw (lo)
• 4wd sw sig
• 4wd whl lock
• Atc fuse 20a
• Auto
• Automatic transfer case control module (left side of dash, above headlamp switch)
• Auxiliary battery relay
• Awd ind
• Body wiring harness junction c1 block
• Brake control
• Channel-a
• Channel-b
• Channel-c
• Channel-p
• Class ii data
• Ctrl
• E10
• E11
• E12
• E13
• E14
• E15
• E16
• Encoder logic
• Encoder motor
• Encoder rtn
• Engine wiring harness junction block
• F10
• F11
• F12
• F13
• F14
• F15
• F16
• Front axle actuator/ switch
• Front prop- shaft speed sensor
• Ft axle ctrl
• Ft shaft rtn
• Ft shaft sig
• Fuse block
• G102 (on left front body mount)
• G200 (upper left kick panel)
• Gnd
• Hot at all times
• Hot in run
• Hot in run & start
• Ign 3 (run)
• Ign1 fuse 10a
• Illumination lamp (2)
• Instrument cluster
• Interior lights system
• Lock sol out
• Logic
• Module gnd
• Motor (ccw)
• Motor (cw)
• Nca
• Neutral ind
• Pnk
• Rear prop- shaft speed sensor
• Red
• Rr shaft rtn
• Rr shaft sig
• S199
• Shift motor
• Solid state
• Splice pack sp203
• Splice pack sp205 (left side of dash)
• Tan
• Transfer case select switch

Transfer Case Wiring Diagram, Manual for GMC Sierra 2000 1500

List of elements for Transfer Case Wiring Diagram, Manual for GMC Sierra 2000 1500:

• (under left side of dash) data link connector
• 4.3l
• 4.8l, 5.3l & 6.0l
• 4wd fuse 15a
• 4wd indicator lamp
• Auxiliary battery relay, vehicle control module (4.3l)
• Block
• Body wiring harness junction c1
• C2 engine wiring harness junction c2
• Electronic brake control module (on left side of inner frame)
• Front axle actuator/ switch
• Fuse block
• G102 (on left front body mount)
• Hot in run
• Hot in run & start
• Ign1 fuse 10a
• Instrument cluster
• Logic
• Pnk
• Powertrain control module (left front of engine compt)
• S199
• Splice pack sp205 (left side of dash)
• Transfer case switch (top left of transfer case)
• Vehicle control module (left front of engine compt)

4.8L

4.8L VIN V, A/T Wiring Diagram, 4L60-E for GMC Sierra 2000 1500

List of elements for 4.8L VIN V, A/T Wiring Diagram, 4L60-E for GMC Sierra 2000 1500:

• (eng harn)
• (ex canadian built)
• (not used) a
• +5v
• 1-2 shift solenoid a
• 1-2 ss
• 2-3 shift solenoid
• 2-3 ss
• 3-2 ctrl solenoid
• 3-2 ss
• 407 (or 720)
• 4wd circuit (front axle & transfer case switch)
• 4wd low
• A/t fluid pressure manual valve position switch
• A10
• A12
• Automatic transmission (4l60-e)
• Block
• Body control module (on lower left side of dash, below steering column)
• Body wiring harness junction c1
• Brake fuse 10a
• Brk sw
• C11
• Canadian built
• Cls 2 data
• D3, d2
• D4, d2
• Data link connector (under left side of dash)
• Ecm1 fuse 10a
• Ecmb fuse 20a
• Ect sig
• Engine coolant temperature sensor (left front of cylinder head)
• Engine wiring harness junction block
• Engine wiring harness junction c2 block
• Ex can built
• Fluid temp sensor
• Frt axle sw
• Fuse block
• G117 (right rear of engine)
• Gnd
• Hot at all times
• Hot in run
• Hot in run & start
• Hot in run, bulb test & start
• Ign
• Ign0 fuse 10a
• Ign1 fuse 10a
• Instrument cluster
• Malfunction indicator lamp
• Mil ctrl
• Park/neutral position switch (left side of transmission)
• Pc sol hi
• Pc sol lo
• Pnk
• Powertrain control module (left front of engine compt)
• Press ctrl solenoid
• Prnd a
• Prnd b
• Prnd c
• Prnd p
• Range b
• Range c
• Red
• Rev, lo
• S103
• S113 (canadian blt)
• Sens gnd
• Splice pack sp205 (left side of dash)
• Stoplight switch (top of brake pedal bracket)
• Tan
• Tcc pwm
• Tcc pwm solenoid
• Tcc sol
• Tcc solenoid a
• Tft sens sig
• Throttle position sensor (on throttle body assy)
• Tp sig
• Trans rng a
• Vehicle speed sensor (left rear of transmission)
• Vss adapter (4wd) (left side of trans)
• Vss hi (signal)
• Vss lo (ground)
• W/ traction
• W/o traction

Transfer Case Wiring Diagram, Electronic for GMC Sierra 2000 1500

List of elements for Transfer Case Wiring Diagram, Electronic for GMC Sierra 2000 1500:

• (left front of engine compt) powertrain control module
• (left front of engine compt) vehicle control module
• (on left front body mount) g102
• (under left side of dash) data link connector
• +8v ref
• +8v ref out
• 2-hi ind
• 4-hi ind
• 4-lo ind
• 4.3l
• 4.8l, 5.3l & 6.0l
• 4wd fuse 15a
• 4wd indicator lamp
• 4wd sw (lo)
• 4wd sw sig
• 4wd whl lock
• Atc fuse 20a
• Auto
• Automatic transfer case control module (left side of dash, above headlamp switch)
• Auxiliary battery relay
• Awd ind
• Body wiring harness junction c1 block
• Brake control
• Channel-a
• Channel-b
• Channel-c
• Channel-p
• Class ii data
• Ctrl
• E10
• E11
• E12
• E13
• E14
• E15
• E16
• Encoder logic
• Encoder motor
• Encoder rtn
• Engine wiring harness junction block
• F10
• F11
• F12
• F13
• F14
• F15
• F16
• Front axle actuator/ switch
• Front prop- shaft speed sensor
• Ft axle ctrl
• Ft shaft rtn
• Ft shaft sig
• Fuse block
• G102 (on left front body mount)
• G200 (upper left kick panel)
• Gnd
• Hot at all times
• Hot in run
• Hot in run & start
• Ign 3 (run)
• Ign1 fuse 10a
• Illumination lamp (2)
• Instrument cluster
• Interior lights system
• Lock sol out
• Logic
• Module gnd
• Motor (ccw)
• Motor (cw)
• Nca
• Neutral ind
• Pnk
• Rear prop- shaft speed sensor
• Red
• Rr shaft rtn
• Rr shaft sig
• S199
• Shift motor
• Solid state
• Splice pack sp203
• Splice pack sp205 (left side of dash)
• Tan
• Transfer case select switch

Transfer Case Wiring Diagram, Manual for GMC Sierra 2000 1500

List of elements for Transfer Case Wiring Diagram, Manual for GMC Sierra 2000 1500:

• (under left side of dash) data link connector
• 4.3l
• 4.8l, 5.3l & 6.0l
• 4wd fuse 15a
• 4wd indicator lamp
• Auxiliary battery relay, vehicle control module (4.3l)
• Block
• Body wiring harness junction c1
• C2 engine wiring harness junction c2
• Electronic brake control module (on left side of inner frame)
• Front axle actuator/ switch
• Fuse block
• G102 (on left front body mount)
• Hot in run
• Hot in run & start
• Ign1 fuse 10a
• Instrument cluster
• Logic
• Pnk
• Powertrain control module (left front of engine compt)
• S199
• Splice pack sp205 (left side of dash)
• Transfer case switch (top left of transfer case)
• Vehicle control module (left front of engine compt)

5.3L

5.3L VIN T, A/T Wiring Diagram, 4L60-E for GMC Sierra 2000 1500

List of elements for 5.3L VIN T, A/T Wiring Diagram, 4L60-E for GMC Sierra 2000 1500:

• (eng harn)
• (ex canadian built)
• (not used) a
• +5v
• 1-2 shift solenoid a
• 1-2 ss
• 2-3 shift solenoid
• 2-3 ss
• 3-2 ctrl solenoid
• 3-2 ss
• 407 (or 720)
• 4wd circuit (front axle & transfer case switch)
• 4wd low
• A/t fluid pressure manual valve position switch
• A10
• A12
• Automatic transmission (4l60-e)
• Block
• Body control module (on lower left side of dash, below steering column)
• Body wiring harness junction c1
• Brake fuse 10a
• Brk sw
• C11
• Canadian built
• Cls 2 data
• D3, d2
• D4, d2
• Data link connector (under left side of dash)
• Ecm1 fuse 10a
• Ecmb fuse 20a
• Ect sig
• Engine coolant temperature sensor (left front of cylinder head)
• Engine wiring harness junction block
• Engine wiring harness junction c2 block
• Ex can built
• Fluid temp sensor
• Frt axle sw
• Fuse block
• G117 (right rear of engine)
• Gnd
• Hot at all times
• Hot in run
• Hot in run & start
• Hot in run, bulb test & start
• Ign
• Ign0 fuse 10a
• Ign1 fuse 10a
• Instrument cluster
• Malfunction indicator lamp
• Mil ctrl
• Park/neutral position switch (left side of transmission)
• Pc sol hi
• Pc sol lo
• Pnk
• Powertrain control module (left front of engine compt)
• Press ctrl solenoid
• Prnd a
• Prnd b
• Prnd c
• Prnd p
• Range b
• Range c
• Red
• Rev, lo
• S103
• S113 (canadian blt)
• Sens gnd
• Splice pack sp205 (left side of dash)
• Stoplight switch (top of brake pedal bracket)
• Tan
• Tcc pwm
• Tcc pwm solenoid
• Tcc sol
• Tcc solenoid a
• Tft sens sig
• Throttle position sensor (on throttle body assy)
• Tp sig
• Trans rng a
• Vehicle speed sensor (left rear of transmission)
• Vss adapter (4wd) (left side of trans)
• Vss hi (signal)
• Vss lo (ground)
• W/ traction
• W/o traction

Transfer Case Wiring Diagram, Electronic for GMC Sierra 2000 1500

List of elements for Transfer Case Wiring Diagram, Electronic for GMC Sierra 2000 1500:

• (left front of engine compt) powertrain control module
• (left front of engine compt) vehicle control module
• (on left front body mount) g102
• (under left side of dash) data link connector
• +8v ref
• +8v ref out
• 2-hi ind
• 4-hi ind
• 4-lo ind
• 4.3l
• 4.8l, 5.3l & 6.0l
• 4wd fuse 15a
• 4wd indicator lamp
• 4wd sw (lo)
• 4wd sw sig
• 4wd whl lock
• Atc fuse 20a
• Auto
• Automatic transfer case control module (left side of dash, above headlamp switch)
• Auxiliary battery relay
• Awd ind
• Body wiring harness junction c1 block
• Brake control
• Channel-a
• Channel-b
• Channel-c
• Channel-p
• Class ii data
• Ctrl
• E10
• E11
• E12
• E13
• E14
• E15
• E16
• Encoder logic
• Encoder motor
• Encoder rtn
• Engine wiring harness junction block
• F10
• F11
• F12
• F13
• F14
• F15
• F16
• Front axle actuator/ switch
• Front prop- shaft speed sensor
• Ft axle ctrl
• Ft shaft rtn
• Ft shaft sig
• Fuse block
• G102 (on left front body mount)
• G200 (upper left kick panel)
• Gnd
• Hot at all times
• Hot in run
• Hot in run & start
• Ign 3 (run)
• Ign1 fuse 10a
• Illumination lamp (2)
• Instrument cluster
• Interior lights system
• Lock sol out
• Logic
• Module gnd
• Motor (ccw)
• Motor (cw)
• Nca
• Neutral ind
• Pnk
• Rear prop- shaft speed sensor
• Red
• Rr shaft rtn
• Rr shaft sig
• S199
• Shift motor
• Solid state
• Splice pack sp203
• Splice pack sp205 (left side of dash)
• Tan
• Transfer case select switch

Transfer Case Wiring Diagram, Manual for GMC Sierra 2000 1500

List of elements for Transfer Case Wiring Diagram, Manual for GMC Sierra 2000 1500:

• (under left side of dash) data link connector
• 4.3l
• 4.8l, 5.3l & 6.0l
• 4wd fuse 15a
• 4wd indicator lamp
• Auxiliary battery relay, vehicle control module (4.3l)
• Block
• Body wiring harness junction c1
• C2 engine wiring harness junction c2
• Electronic brake control module (on left side of inner frame)
• Front axle actuator/ switch
• Fuse block
• G102 (on left front body mount)
• Hot in run
• Hot in run & start
• Ign1 fuse 10a
• Instrument cluster
• Logic
• Pnk
• Powertrain control module (left front of engine compt)
• S199
• Splice pack sp205 (left side of dash)
• Transfer case switch (top left of transfer case)
• Vehicle control module (left front of engine compt)

WARNING SYSTEMS

Warning System Wiring Diagrams for GMC Sierra 2000 1500

List of elements for Warning System Wiring Diagrams for GMC Sierra 2000 1500:

• (4.3l)
• (all others)
• (base seat) (all others)
• (on lower left side of dash, below steering column) body control module
• A b
• A11
• A12
• B c
• B10
• B11
• Base
• Battery
• Body wiring harness junction block
• Body wiring harness junction block (under left side of dash, near kick panel)
• Body wiring harness junction block f2
• C1 f2
• C10
• C11
• Cgo dr jmb sw in
• Cruise fuse 10a
• Door jamb sw in
• Engine wiring harness junction block
• Exterior lights
• F10
• Fuse block
• G200 (upper left kick panel)
• G300 (under driver's seat)
• G998 (rear corner of right rear window)
• Ground
• Hdlmp rly cntrl
• Headlamp & panel dimmer switch
• Hot at all times
• Hot in accy or run
• Hot in run
• Hot with park lights on
• Ign 1 fuse 10a
• Ignition 1
• Ignition 3
• Inflatable restraint sensing & diagnostic module (under driver's seat)
• Instrument cluster
• Int prk fuse 10a
• Key in ign
• Key-in ignition switch
• Left cargo door ajar switch
• Left door contactor
• Left liftgate ajar switch
• Left mini wedge switch
• Left power window/ door lock switch
• Left turn input
• Liftglass ajar switch
• Logic
• Nca
• Park lights in
• Pnk
• Pnk/
• Powertrain control module (pcm) (left front of engine compartment)
• Rear window wiper module
• Right cargo door ajar switch
• Right door contactor
• Right liftgate ajar switch
• Right turn input
• S410
• S411
• Seat belt ind
• Seat belt input
• Seat belt switch (on driver's seat belt buckle) (base seat) (pwr seat) (full feature seat)
• Serial data
• Sp203
• Sp205 (left side of dash)
• Sp410
• Tan
• Tbc fuse 10a
• Turn/hazard switch
• Uplevel
• Utility w/cargo doors
• Utility w/o cargo doors

WIPER/WASHER

Front Wiper/Washer Wiring Diagram for GMC Sierra 2000 1500

List of elements for Front Wiper/Washer Wiring Diagram for GMC Sierra 2000 1500:

• (in forward lamp harness) s100
• (left front of engine) g110
• (left radiator support bracket) g108
• 24,000 ohms
• Fuse block (on lower left side of dash)
• High
• Hot in acc & run
• Lo pulse
• Mist
• Mux 1
• Mux 2
• Nca
• Off
• Pnk
• Pulse
• Red
• Resistance values: minimum delay; 39,000, 82,000, 150,000, 270,000 maximum delay; 680,000
• Underhood junction block (at left side of engine compartment, near battery)
• W/w pmp fuse 15a
• Wash
• Windshield washer pump (in washer fluid reservoir)
• Windshield wiper motor module (under cowl, near wiper arms)
• Windshield wiper/ washer switch
• Ws wiper fuse 25a