POWER DISTRIBUTION – Chevrolet Silverado 2500 HD 2001 – SYSTEM WIRING DIAGRAMS

POWER DISTRIBUTION

Power Distribution Wiring Diagram (1 of 4) for Chevrolet Silverado 2500 HD 2001

List of elements for Power Distribution Wiring Diagram (1 of 4) for Chevrolet Silverado 2500 HD 2001:

• (base pickup (uplevel pickup, utilities)
• (diagram 1 of 4)
• (not used)
• (on left side of engine compt) underhood junction block
• (right rear side of cargo area)
• (under left side of dash) body junction block
• (upper left kick panel)
• A/c compressor relay
• A/c fuse 10a
• Abs fuse 60a
• Accessory power outlet
• Accessory power outlet (console)
• Air fuse 30a
• Atc fuse 20a
• Audio amplifier
• Automatic transmission control module (allison)
• Aux pwr fuse 20a
• B12
• B12 d2
• Base
• Bat
• Battery cable junction block
• Body control module
• C1 f2
• C10
• C12
• Cigar fuse 15a
• Cigar lighter
• Ctsy lp fuse 15a
• D10
• D11
• D12
• Data link connector (dlc)
• Daytime running lamp (drl) relay
• Diesel only
• Dimmer switch
• Driver infor- mation center (dic)
• Driver seat
• Drl fuse 10a
• E nca
• E10
• Ecm b fuse 20a
• Electronic brake control module (ebcm)
• Engine control module (ecm)/ powertrain control module (pcm)
• 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 assembly
• Front passenger window/door lock switch
• Frt hvac fuse 30a
• Fuel pump relay
• Fusible link (10 ga- red)
• G200
• G203 (upper right kick panel)
• G405
• Generator
• Generator (w/ dual diesel only)
• Hazard fuse 20a
• Headlamp dimmer switch
• Headlamp relay
• Horn relay
• Hvac control module
• I/p junction block
• Inadvertent power relay
• Instrument panel cluster (ipc)
• L nca
• Left battery
• Nca
• Park lamps fuse 30a
• Parklamp relay
• Passenger seat
• Power sunroof
• Power takeoff (pto) relay
• Pwr wdo cb 25a
• Radio
• Radio fuse 15a
• Rap 2 fuse 50a
• Rap 2 relay
• Rap fuse 50a
• Rdo amp fuse 25a
• Rear accessory power outlet
• Red
• Remote control door lock receiver
• Right rear defogger relay
• Right rear heated seat switch
• Right rear 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
• Sunroof module
• 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 1 relay (diagram 3 of 4)
• To ign a fuse (diagram 2 of 4)
• To park lamps fuse (diagram 1 of 4)
• Transfer case encoder motor
• Transfer case shift module
• Turn signal/ multi- function switch
• Under- hood junction block (on left side of engine compt)
• Under- hood junction block (on left side of engine)
• Uplevel
• Vehicle interface unit (onstar)

Power Distribution Wiring Diagram (2 of 4) for Chevrolet Silverado 2500 HD 2001

List of elements for Power Distribution Wiring Diagram (2 of 4) for Chevrolet Silverado 2500 HD 2001:

• (4.3l)
• (a/t)
• (all others)
• (canada built)
• (diesel)
• (gas)
• (m/t)
• (not used)
• (others)
• A/c clutch relay
• A10
• A13
• Acc
• Air bag fuse 15a
• Automatic transmission
• B/u lp fuse 25a
• B11
• Back-up lamp switch (part of park/ neutral position switch (a/t))
• Body control module
• Body 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 on/off switch
• Cruise fuse 10a
• D (gas) (diesel)
• Driver information center (dic)
• Drl relay
• E11
• E6 (not used)
• Emergency light relay
• Eng 1 fuse 10a
• Engine control module (ecm) (diesel)
• Engine control module (ecm)/ powertrain control module (pcm)
• Evaporative emission (evap) canister purge solenoid
• Evaporative emission (evap) canister vent solenoid
• Ext lps fuse 10a
• F10
• F11
• From cigar e
• Fuel heater (diesel)
• Fuse (diagram 1 of 4)
• Fuse block (on lower left side of dash)
• Gas only
• Heated oxygen sensor (ho2s) (bank 1 sensor 1) (gas)
• Heated oxygen sensor (ho2s) (bank 1 sensor 2) (gas)
• Heated oxygen sensor (ho2s) (bank 2 sensor 1) (gas)
• Heated oxygen sensor (ho2s) (bank 2 sensor 2) (gas)
• 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
• Inflatable restraint i/p module switch (pickup only)
• Inflatable restraint sensing & diagnostic module
• Inside temperature sensor assembly
• Instrument panel cluster (ipc)
• Intake air temperature (iat)/ mass air flow (maf) sensor
• Nca
• Nca c
• Nca f
• O2 a fuse 15a fuel ht fuse 15a
• O2 b fuse 15a ecm 1 fuse 10a
• Off
• Outside rearview mirror
• Park/ neutral position switch (a/t)
• Pnk
• Rear defog relay
• Rear window wiper module
• Rear wiper washer switch
• Red
• 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 i/p junction block (diagram 3 of 4)
• To ign 1 relay (diagram 3 of 4)
• To retained accessory power relay (diagram 4 of 4)
• Traction assist switch
• Trailer connector
• Transfer case shift control switch
• Turn fuse 20a
• Turn signal/ multi- function switch
• Under- hood junction block (on left side of engine compt)
• Underhood junction block (on left side of engine compt)
• Vehicle interface unit (viu)
• Windshield washer switch
• Windshield wiper motor module
• Ws wiper fuse 25a

Power Distribution Wiring Diagram (3 of 4) for Chevrolet Silverado 2500 HD 2001

List of elements for Power Distribution Wiring Diagram (3 of 4) for Chevrolet Silverado 2500 HD 2001:

• (4.3l)
• (all other gas)
• (auto ecc)
• (base)
• (diesel)
• (diesel) (gas)
• (engine harness) s199
• (except 4.3l)
• (gas)
• (manual)
• (on lower left side of dash) fuse block
• (other pnk
• (other)
• (uplevel pickups & utilities)
• 4.3l
• 4wd fuse 15a
• A11
• Air temperature actuator
• All other gas
• Auxiliary battery relay
• B h
• B j
• B10
• Blower motor switch (manual)
• Brake fuse 10a
• C10
• C11
• C12
• C2 c1
• Clutch pedal position switch
• Compressor leveling relay relay
• D10
• Diesel
• E10
• E12
• Ecm 1 fuse 10a ecm prv fuse 15a
• Electronic brake control module (ebcm)
• Engine control module (ecm)/
• Engine control module (ecm)/ powertrain control module (pcm)
• Etc fuse 15a
• From cruise g
• From eng 1 fuse (diagram 2 of 4) from ecm b fuse (diagram 1 of 4)
• From fuse link (diagram 1 of 4)
• From ign c f
• From rr hvac fuse (diagram 2 of 4)
• Front axle actuator
• Front passenger heated seat 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)
• G114 (left rear of engine)
• Gas
• Gas)
• Heater auxiliary blower motor resistor
• Htr/ a/c fuse 25a
• Hvac 1 fuse 10a
• Hvac control module
• I/p junction block (on lower right side of dash)
• 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 driver
• Inj a fuse 15a
• Inj b fuse 25a 15a
• Injector control module (icm)
• Left front heated seat switch
• Left rear heated seat module
• Mega fuse 125a
• Memory seat module (except pickup)
• Memory seat module (pickup only)
• Mode actuator
• Nca
• Pnk
• Powertrain control module (pcm) (4.3l)
• Recirculation actuator
• Red
• Right battery
• Right rear heated seat module
• S104
• S152 (eng pnk harn)
• S154 (eng pnk harn)
• Stoplamp switch
• Suspension control module
• To a/c auxiliary blower motor resistor assembly (diagram 4 of 4)
• Transfer case shift control module
• Under- hood junction block (on left side of engine compt)

Power Distribution Wiring Diagram (4 of 4) for Chevrolet Silverado 2500 HD 2001

List of elements for Power Distribution Wiring Diagram (4 of 4) for Chevrolet Silverado 2500 HD 2001:

• (except pickup)
• (not used)
• (pickup only)
• (pickup)
• (utilities)
• A/c auxiliary blower motor resistor assembly
• A10
• Air temperature actuator
• Air temperature sensor
• Base
• Base pickup
• Base utility
• Body control module (bcm)
• Body junction block fuse block (under left side of dash)
• C1 b4
• C1 c9
• C1 e7
• C14
• C4 k
• C4 l
• C6 c
• C7 e
• Door lock fuse 20a
• Door lock relay
• Door unlock relay
• Driver door lock switch
• Driver door unlock relay (uplevel only)
• Driver memory seat switch
• Driver seat adjuster switch
• Driver window/ door lock switch
• F11
• From fuse block (diagram 2 of 4)
• From i/p junction block (diagram 3 of 4)
• From rap fuse d (diagram 1 of 4)
• Front auxiliary hvac control assembly
• Front passenger door lock switch
• Front passenger seat adjuster switch
• Front passenger window/ door lock switch
• Fuse block (on lower left side of dash)
• I/p junction block
• Instrument cluster & sound systems
• Left full feature seat
• Left power door lock switch
• Left power seat
• Left power window/ door lock switch
• Memory seat switch
• Mir/ lock fuse 3a
• Mode actuator
• Nca
• Outside rear view mirror switch
• Pickup
• Pwr wdo cb 25a
• Radio
• Rap 2 fuse 10a
• Rdo 1 fuse 10a
• Rear auxiliary hvac control assembly
• Rear cargo door lock switch
• Rear hvac control module
• Red
• Relays
• Retained accessory power relay
• Right full feature seat
• Right power seat
• Seats circuit breaker 25a
• To rap 2 relay (diagram 1 of 4)
• Uplevel & 4-door
• Uplevel all
• Utilities
• Utility only
• Vehicle interface unit (viu)
• W/ auto ecc
• W/ heat & a/c
• W/ heat or a/c
• W/ sunroof
• W/o sunroof